Book Links and Code

The https://LAoE.link web site redirects the web links in the Second Edition of Learning the Art of Electronics to their actual destination. By using an intermediate web site we can keep the links valid even if the original destination is moved or is no longer available.

Scroll down to see the current table of redirects. You can click on any link to the right to go to the redirected site directly. You will find links to Verilog code, microcontroller code, and other materials referenced in the book after the redirected links.

Report broken or dead links to badlink@LAoE.link

Redirects for Learning the Art of Electronics 2nd Ed
mru: dea 4/5/2026 5:51:24 PM

Chapter	Book Link	Redirects To
Preface	https://LAoE.link/Link_Rot.html	https://www.theatlantic.com/technology/archive/2021/06/the-internet-is-a-collective-hallucination/619320/
Preface	https://LAoE.link/Craighead.com	http://www.raycraighead.com/
Preface	https://LAoE.link/Online_Chapters.html	https://learningtheartofelectronics.com/about-the-book/online-chapters/
1N	https://LAoE.link/Earth_Ground.html	https://en.wikipedia.org/wiki/File:HomeEarthRodAustralia1.jpg
1L	https://LAoE.link/DMM_Specs.pdf	https://www.keysight.com/us/en/assets/7018-05993/data-sheets/5992-2704.pdf
1O	https://LAoE.link/PB503.html	https://www.globalspecialties.com/product/PB-503A
1O	https://LAoE.link/3M_Breadboard.html	https://www.mouser.com/ProductDetail/3M-Electronic-Specialty/922336?qs=fltJrqpyVmVsdH6R2V6h8g%3D%3D
1O	https://LAoE.link/Adafruit_Breadboard.html	https://www.adafruit.com/product/443
1O	https://LAoE.link/CS_Breadboard.html	https://www.circuitspecialists.com/powered-protoboard-system-with-two-lcd-digital-panel-meters
1O	https://LAoE.link/Banana_Jumpers.html	https://www.amazon.com/Stackable-Banana-Leads-Electrical-Multimeter/dp/B083K8LRM6/
1O	https://LAoE.link/IC_Tool_Demo.html	https://youtu.be/pe75UBX3tEQ
1O	https://LAoE.link/IC_Screwdriver_Demo.html	https://youtu.be/adky5YjfFT0
2S	https://LAoE.link/Ceramic_Capacitor.html	https://en.wikipedia.org/wiki/Ceramic_capacitor
3N	https://LAoE.link/Antennas_101.pdf	https://www.electronicdesign.com/technologies/components/passives/article/21769333/electronic-design-welcome-to-antennas-101
3L	https://LAoE.link/Isolation_Xformer.html	https://www.amazon.com/s?k=ei-14+transformer+1%3A1&ref=nb_sb_noss
4N	https://LAoE.link/Hoax_Stuff.html	https://www.electronicdesign.com/markets/lighting/article/21764395/whats-all-this-hoax-stuff-anyhow
5L	https://LAoE.link/Wilson_CM.html	https://en.wikipedia.org/wiki/Wilson_current_mirror
5L	https://LAoE.link/Improved_Wilson.html	https://circuitdigest.com/tutorial/current-mirror-circuit-wilson-and-widlar-current-mirroring-techniques
5S	https://LAoE.link/Current_Sources.pdf	https://www.ti.com/lit/an/sboa046/sboa046.pdf
6N	https://LAoE.link/TI_AN-31.pdf	https://www.ti.com/lit/an/snla140d/snla140d.pdf?ts=1692171987919&ref_url=https%253A%252F%252Fcn.bing.com%252F
6N	https://LAoE.link/Williams_AN-6.pdf	http://cds.linear.com/docs/en/application-note/an6.pdf
7N	https://LAoE.link/Auto-Zero_Amplifiers.html	https://www.analog.com/en/analog-dialogue/articles/demystifying-auto-zero-amplifiers-part-1.html
7L	https://LAoE.link/Load_Cell.html	https://www.adafruit.com/product/4540
7L	https://LAoE.link/Load_Cell_Amp.html	https://www.sparkfun.com/products/13879
7L	https://LAoE.link/HX711_Datasheet.pdf	https://cdn.sparkfun.com/datasheets/Sensors/ForceFlex/hx711_english.pdf
7L	https://LAoE.link/SparkFun_Calibration.html	https://learn.sparkfun.com/tutorials/load-cell-amplifier-hx711-breakout-hookup-guide/all\#installing-the-hx711-arduino-library-and-examples
7L	https://LAoE.link/SparkFun_Instructions.html	https://learn.sparkfun.com/tutorials/load-cell-amplifier-hx711-breakout-hookup-guide
8N	https://LAoE.link/Oscillator_Stuff.html	https://www.electronicdesign.com/technologies/analog/article/21769925/whats-all-this-oscillator-stuff-anyhow
8N	https://LAoE.link/555_Timer.html	http://semiconductormuseum.com/Transistors/LectureHall/Camenzind/Camenzind_Index.htm
8N	https://LAoE.link/Williams_AN47.pdf	https://www.analog.com/media/en/technical-documentation/application-notes/an47fa.pdf
8N	https://LAoE.link/Woody_Allen.html
9N	https://LAoE.link/ADI_Filter_Wizard.html	http://www.analog.com/designtools/en/filterwizard/\#/type
9N	https://LAoE.link/Microchip_FilterLab.html	https://www.microchip.com/en-us/development-tool/FilterLabDesignSoftware
9N	https://LAoE.link/TI_Filter_Design.html	https://webench.ti.com/filter-design-tool/
9N	https://LAoE.link/Pease_LB-42.pdf	https://www.ti.com/lit/pdf/snoa861
9N	https://LAoE.link/Gimmick.html
9L	https://LAoE.link/Ferrites_Demystified.html	https://www.analog.com/en/analog-dialogue/articles/ferrite-beads-demystified.html
9L	https://LAoE.link/Op_Amp_Handbook.html	https://www.analog.com/en/education/education-library/op-amp-applications-handbook.html
9L	https://LAoE.link/LT6230_Datasheet.pdf	https://www.analog.com/media/en/technical-documentation/data-sheets/623012fc.pdf
10L	https://LAoE.link/PID_Control.html	http://www.straightlinecontrol.com/
10L	https://LAoE.link/OnlinePID_Sim.html	http://newton.ex.ac.uk/teaching/CDHW/Feedback/
10L	https://LAoE.link/ExcelPID_Sim.html	http://www.engineers-excel.com/Apps/PID_Simulator/Description.htm
11N	https://LAoE.link/Line_Voltage.html	https://www.ilga.gov/commission/jcar/admincode/083/083004100D03000R.html
11N	https://LAoE.link/Switching_Regulators.pdf	http://www.analog.com/media/en/training-seminars/design-handbooks/Practical-Design-Techniques-Power-Thermal/Section3.pdf
11N	https://LAoE.link/TI_Power_Designer.html	https://webench.ti.com/power-designer/switching-regulator
11N	https://LAoE.link/JW_AN25.pdf	https://www.analog.com/media/en/technical-documentation/application-notes/an25fa.pdf
11L	https://LAoE.link/LT1073_Datasheet.pdf	http://cds.linear.com/docs/en/datasheet/1073fa.pdf
12N	https://LAoE.link/LF411_Datasheet.pdf	https://www.phys.ufl.edu/courses/phy4802L/fall17/DataSheets/288-0361-1.PDF
14N	https://LAoE.link/NI_QAM.html	https://web.archive.org/web/20230310004658/https://www.ni.com/en-us/innovations/white-papers/06/quadrature-amplitude-modulation–qam-.html
14N	https://LAoE.link/QAM_tutorial.html
14N	https://LAoE.link/LVDS_Guide.pdf	https://www.ti.com/lit/ug/snla187/snla187.pdf
14L	https://LAoE.link/HCMOS_Specs.pdf	http://web.mit.edu/6.111/www/f2017/handouts/labs/hctfamspec.pdf
14L	https://LAoE.link/AN-248.pdf	https://www.onsemi.com/pub/Collateral/AN-248.pdf
15N	https://LAoE.link/PALS_MMI.pdf	http://matthieu.benoit.free.fr/cross/data_sheets/PALS_MMI.pdf
15N	https://LAoE.link/Verilog_Operators.html	https://documentation-rp-test.readthedocs.io/en/latest/tutorfpga04.html
15N/16N	https://LAoE.link/WebFPGA_Docs.html	https://book.webfpga.io/
15L	https://LAoE.link/Installing_the_FPGA.html	https://learningtheartofelectronics.com/errata2/errata-installing-the-fpga/
15L	https://LAoE.link/WebFPGA_dashboard.html	https://beta.webfpga.io/dashboard
15S	https://LAoE.link/OS_Tools.html	https://hackernoon.com/getting-started-using-open-source-fpga-tools
15S	https://LAoE.link/WebUSB.html	https://caniuse.com/webusb
15S	https://LAoE.link/notepad-plus-plus.html	https://notepad-plus-plus.org/
15S	https://LAoE.link/ICE40_Datasheet.pdf	https://www.latticesemi.com/view_document?document_id=51968
15S	https://LAoE.link/WebFPGA.html	https://webfpga.io/
15S	https://LAoE.link/WebFPGA_Schematic.html	https://raw.githubusercontent.com/mickjacobs/WebFPGA_wiki/master/schematics/ShastaPlus_300.png
15LS	https://LAoE.link/STEP_IDE.html	https://stepfpga.eimtechnology.com/
15W	https://LAoE.link/Sonar_Sensor.pdf	https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf
15O	https://LAoE.link/EDA_Playground.html	https://www.edaplayground.com/
15O	https://LAoE.link/EDA_Docs.html	https://eda-playground.readthedocs.io/en/latest/
15O	https://LAoE.link/EDA_ButtonLED.html	https://www.edaplayground.com/x/pvC
15O	https://LAoE.link/Testbench_Tutorial.html	https://fpgatutorial.com/how-to-write-a-basic-verilog-testbench/
15O	https://LAoE.link/HDLBits.html	https://hdlbits.01xz.net/wiki/Main_Page
15O	https://LAoE.link/8bitworkshop.html	http://8bitworkshop.com/v3.3.0/?platform=verilog&file=clock_divider.v
15O	https://LAoE.link/NandLand.html	https://nandland.com/learn-verilog/
15O	https://LAoE.link/VerilogInOneDay.html	http://www.asic-world.com/verilog/verilog_one_day.html
15O	https://LAoE.link/ZipCPU.html	https://zipcpu.com/tutorial/
15O	https://LAoE.link/ChipVerify.html	https://www.chipverify.com/verilog/verilog-tutorial
15O	https://LAoE.link/FPGA_Videos.html
15O	https://LAoE.link/STEP_FPGA.html	https://www.tindie.com/products/evoinmotion/stepfpga-a-pleasant-fpga-journey-for-beginners/
15O	https://LAoE.link/FireAnt.html	https://www.crowdsupply.com/jungle-elec/fireant
15O	https://LAoE.link/FireAnt_Pinout.html	https://github.com/jungle-elec/FireAnt/wiki/fireant-quick-start-guide#pinout-diagram}
15O	https://LAoE.link/IceFun.html	https://www.robotshop.com/products/icefun-fpga-board
15O	https://LAoE.link/UPduino.html	https://tinyvision.ai/products/upduino-v3-1
15O	https://LAoE.link/iCE40-feather.html	https://www.tindie.com/products/whatnick/ice40-feather/
15O	https://LAoE.link/TinyFPGA_BX.html	https://www.crowdsupply.com/tinyfpga/tinyfpga-ax-bx
15O	https://LAoE.link/TinyFPGA_EX.html	https://www.crowdsupply.com/tinyfpga/tinyfpga-ex
16N	https://LAoE.link/HP_Display.html	http://www.decodesystems.com/hp5082-7300.html
16N	https://LAoE.link/SRFF_NAND.html	https://www.edaplayground.com/x/H8PV
16N	https://LAoE.link/SRFF_always.html	https://www.edaplayground.com/x/b_Af
16N	https://LAoE.link/D_flipflop.html	https://www.edaplayground.com/x/KEnS
16N	https://LAoE.link/74HC74_flipflop.html	https://www.edaplayground.com/x/HqgH
16L	https://LAoE.link/Switch_Bounce.html
16S	https://LAoE.link/MIT_6.111.pdf	http://web.mit.edu/6.111/www/s2004/LECTURES/l5.pdf
16S	https://LAoE.link/Styles_that_Kill.pdf	http://www.sunburst-design.com/papers/CummingsSNUG2000SJ_NBA.pdf
17N	https://LAoE.link/Danger.html	https://cultural-phenomenons.fandom.com/wiki/Danger,_Will_Robinson
17L	https://LAoE.link/TEC.html	https://en.wikipedia.org/wiki/Utility_frequency#Time_error_correction_(TEC)
17L	https://LAoE.link/74HC161_counter.html	https://www.edaplayground.com/x/4Smq
17O	https://LAoE.link/Find_74LS469.html	https://www.findchips.com/search/74LS469
17O	https://LAoE.link/eBay.com	https://www.ebay.com/
17O	https://LAoE.link/Find_74LS169.html	https://www.findchips.com/search/74LS169
18N	https://LAoE.link/WOM.pdf	https://web.archive.org/web/20120316141638/http://www.national.com/rap/files/datasheet.pdf
18N	https://LAoE.link/Safier_v_WDC.html	https://en.wikipedia.org/wiki/Binary_prefix#Orin_Safier_v._Western_Digital_Corporation
18N/18W	https://LAoE.link/iCEcube2_Guide.pdf	https://www.latticesemi.com/view_document?document_id=53168
18N	https://LAoE.link/Conways_Life.html	https://en.wikipedia.org//wiki/Conway’s_Game_of_Life
18L	https://LAoE.link/Danger.html
18L	https://LAoE.link/TDCG1050.pdf	https://www.vishay.com/docs/83180/tdcx10x0m.pdf
18L	https://LAoE.link/TLC5916.pdf	https://www.ti.com/lit/ds/symlink/tlc5916.pdf
18L	https://LAoE.link/18L_P2S_Test.html	https://www.edaplayground.com/x/C9Wn
18L	https://LAoE.link/74LS247.pdf	https://www.ti.com/lit/ds/symlink/sn74ls247.pdf
18W	https://LAoE.link/Ice40UP_Datasheet.pdf	https://www.latticesemi.com/view_document?document_id=51968
18W	https://LAoE.link/Ice40_Library.pdf	https://www.latticesemi.com/view_document?document_id=52206
18W	https://LAoE.link/Ice40_EBR_Guide.pdf	https://www.latticesemi.com/view_document?document_id=47775
18W	https://LAoE.link/Ice40_SPRAM_Guide.pdf	https://www.latticesemi.com/view_document?document_id=51966
19N	https://LAoE.link/FPGA/FSM_Counter_Sim.html	https://circuitverse.org/users/18907/projects/oddball-counter-fsm
19N	https://LAoE.link/FPGA/FSM_ROM_Counter_Sim.html	https://circuitverse.org/users/18907/projects/odd-ball-counter-rom-fsm
19L	https://LAoE.link/FPGA/RT_FSM_Testbench.html	https://www.edaplayground.com/x/c9KV
19L	https://LAoE.link/Hotel_California.html
19W	https://LAoE.link/FPGA/19W_ATtiny_Datasheet.pdf	http://ww1.microchip.com/downloads/en/devicedoc/atmel-2586-avr-8-bit-microcontroller-attiny25-attiny45-attiny85_datasheet.pdf
19W	https://LAoE.link/One_Hot.html	https://only-vlsi.blogspot.com/2008/06/one-hot-encoding.html
20L	https://LAoE.link/74LS502_Datasheet.pdf	http://atomoptics.uoregon.edu/~dsteck/74503/74LS502-datasheet.pdf
20N	https://LAoE.link/ADI_MT-014.pdf	https://www.analog.com/media/en/training-seminars/tutorials/MT-014.pdf
20N	https://LAoE.link/ADI_Conversion_Handbook.html	https://www.analog.com/en/education/education-library/data-conversion-handbook.html
20N	https://LAoE.link/ADI_MT-015.pdf	https://www.analog.com/media/en/training-seminars/tutorials/MT-015.pdf
20N	https://LAoE.link/Arduino_AnalogWrite.html	https://docs.arduino.cc/language-reference/en/functions/analog-io/analogWrite/
20N	https://LAoE.link/ADI_AN-215A.pdf	https://www.analog.com/media/en/technical-documentation/application-notes/an215.pdf
20N	https://LAoE.link/ADI_MT-030.pdf	https://www.analog.com/media/cn/training-seminars/tutorials/MT-030.pdf
20N	https://LAoE.link/DeltaSigma.html	https://www.beis.de/Elektronik/DeltaSigma/DeltaSigma.html
20N	https://LAoE.link/ADI_MT-022.pdf	http://www.analog.com/media/en/training-seminars/tutorials/MT-022.pdf
20N	https://LAoE.link/DS_ADC.html	https://www.analog.com/en/design-center/interactive-design-tools/sigma-delta-adc-tutorial.html
20N	https://LAoE.link/Maxim_AN1870.pdf	http://courses.washington.edu/mengr477/resources/SigmaDelta.pdf
20W	https://LAoE.link/Phillips_AN97055.pdf	http://www.adafruit.com/datasheets/an97055.pdf
21L	https://LAoE.link/C-Meter_Demo.html	https://youtu.be/NUj9F7a6hyc
22L	https://LAoE.link/SparkFun_SAMD21_Mini_Schematic.pdf	https://cdn.sparkfun.com/datasheets/Dev/Arduino/Boards/sparkfun-samd21-mini-breakout-v10.pdf
22L	https://LAoE.link/Cortex-M_Assembly_Language.html	http://cortex-m.com/arm-cortex-m-instructions/
22N	https://LAoE.link/History_of_Colossus.html	http://plato.stanford.edu/entries/computing-history/#Col
22N	https://LAoE.link/CMSIS-Core_Reference.html	https://arm-software.github.io/CMSIS_5/Core/html/modules.html
22N	https://LAoE.link/Cortex-M0+_Technical_Reference_Manual.html	https://developer.arm.com/documentation/ddi0484/c/
22N	https://LAoE.link/CMSIS_Overview.html	https://developer.arm.com/tools-and-software/embedded/cmsis
22N	https://LAoE.link/Microchip_Developer_32bit_Help.html	https://microchipdeveloper.com/32bit:samd-1-2
22N	https://LAoE.link/Atmel_Start.html	https://start.atmel.com/
22N	https://LAoE.link/Microchip_ATSAMD21G18.html	https://ww1.microchip.com/downloads/en/DeviceDoc/SAM-D21DA1-Family-Data-Sheet-DS40001882G.pdf
22N	https://LAoE.link/Linux_Kernel_in_C.html	https://www.phoronix.com/scan.php?page=news_item&px=more-x86-asm-to-c-linux
22N	https://LAoE.link/J-Link_Product_Page.html	https://www.segger.com/products/debug-probes/j-link/models/j-link-edu-mini/
22N	https://LAoE.link/Segger_Embedded_Studio.html	https://www.segger.com/products/development-tools/embedded-studio/
22N	https://LAoE.link/SparkFun_SAMD21_Mini.html	https://www.sparkfun.com/products/13664
22S	https://LAoE.link/Installing_EStudio.html	https://learningtheartofelectronics.com/errata2/errata-installing-segger-embedded-studio/
22N/22S	https://LAoE.link/Embedded_Studio_Download.html	https://www.segger.com/downloads/embedded-studio/
22N/26N	https://LAoE.link/Microchip_ATSAMD21G18_Datasheet.pdf	https://ww1.microchip.com/downloads/aemDocuments/documents/MCU32/ProductDocuments/DataSheets/SAM-D21DA1-Family-Data-Sheet-DS40001882G.pdf
22N	https://LAoE.link/Ardunio.html	https://www.arduino.cc/
22N	https://LAoE.link/Harmony.html	https://www.microchip.com/en-us/tools-resources/configure/mplab-harmony
22N	https://LAoE.link/Stanford_C.pdf	http://cslibrary.stanford.edu/101/EssentialC.pdf
22S	https://LAoE.link/C_Tutorial.html	https://www.freecodecamp.org/news/the-c-programming-handbook-for-beginners/
22S	https://LAoE.link/Atmel_SAMD21_Support.emPackage	https://studio.segger.com/packages/SAMD21/2.2/SAMD21.emPackage
22S	https://LAoE.link/Advanced_C.html	https://www.learn-c.org/
22S	https://LAoE.link/Beginners_C_Video.html
22O	https://LAoE.link/Amazon_SAMD21_Mini.html	https://www.amazon.com/s?k=samd21+M0-mini
22O	https://LAoE.link/ebay_SAMD21_Mini.html	https://www.ebay.com/sch/i.html?_nkw=wemos+samd21+mini
22O	https://LAoE.link/AliExpress_SAMD21_Mini.html	https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20220221104809&SearchText=SAMD21+M0-Mini
22O	https://LAoE.link/MakerPortal_SAMD21_Mini.html	https://makersportal.com/shop/samd21-m0-mini-48mhz-microcontroller
22O	https://LAoE.link/ElectroDragon_SAMD21_Mini.html	https://www.electrodragon.com/product/samd21-mini-devlopment-board-m0-atsamd21g18a-au/
22O	https://LAoE.link/RobotDyn.html	https://robotdyn.com/
22O	https://LAoE.link/J-Link_Boot_Edit.html	https://web.archive.org/web/20230609202212/https://roamingthings.de/posts/use-j-link-to-change-the-boot-loader-protection-of-a-sam-d21/
22O	https://LAoE.link/J-Link_Linux_Boot_Edit.html	https://hackaday.io/page/5997-programming-a-samd-bootloader-using-jlink-linux
22O	https://LAoE.link/Full_Size_WeMos.html	https://www.ebay.com/sch/i.html?_nkw=Samd21+M0+32+bit+Wemos
22O	https://LAoE.link/SAMD21_Boards.html	https://www.hackster.io/news/sam-d21-mini-development-boards-the-same-hardware-only-priced-differently-b09ddc73284f
22O	https://LAoE.link/SAMD21_M0-Mini.html	https://github.com/BLavery/SAMD21-M0-Mini
22O	https://LAoE.link/SAMD21_Wemos.html	https://www.cnx-software.com/2019/07/05/samd21-mini-wemos-d1-samd21-m0-mini-development-board/
22O	https://LAoE.link/SAMD21_Mini_Full.html	https://www.sparkfun.com/products/13672
22O	https://LAoE.link/Arduino_Zero.html	https://store-usa.arduino.cc/products/arduino-zero
22O	https://LAoE.link/Arduino_Zero_Schematic.pdf	https://content.arduino.cc/assets/ArduinoZeroV4.0_sch.pdf
23L	https://LAoE.link/Keyboard_Matrix.html	http://blog.komar.be/how-to-make-a-keyboard-the-matrix/
23L	https://LAoE.link/Hotel_Safe.html	https://commons.wikimedia.org/wiki/File:Macau_%E6%BE%B3%E9%96%80JW%E8%90%AC%E8%B1%AA%E9%85%92%E5%BA%97_JW_Marriott_Hotel_room_interior_Oct_2015_Elsafe_Assa_Abloy_safe_box_button_penal_Zenith.JPG
23L	https://LAoE.link/Binary-to-BCD.html	https://fraserinnovations.com/fpga-tutor/risc-v-board-tutorial-hexadecimal-number-to-bcd-code-conversion-and-application-fii-prx100-fpga-board-experiment-8/
23L	https://LAoE.link/US5661.pdf	https://cdn-shop.adafruit.com/datasheets/US5881_rev007.pdf
23L	https://LAoE.link/Sine_Gen.html	https://www.daycounter.com/Calculators/Sine-Generator-Calculator.phtml
23L	https://LAoE.link/Membrane_Keypad_Construction.html
23L	https://LAoE.link/Keypad_Demonstration.html	https://youtu.be/BTYdBnJsHaU
23N	https://LAoE.link/SysTick_Timer.html	https://microchipdeveloper.com/32arm:samd21-systick
23N	https://LAoE.link/CMSIS_Intrinsic_CPU_Instructions.html	https://arm-software.github.io/CMSIS_5/Core/html/group__intrinsic__CPU__gr.html
23N	https://LAoE.link/CMSIS_SysTick_Timer.html	https://arm-software.github.io/CMSIS_5/Core/html/group__SysTick__gr.html
24N	https://LAoE.link/SparkFun_SAMD21_Graphical_Datasheet.pdf	https://cdn.sparkfun.com/assets/learn_tutorials/4/5/4/graphicalDatasheet-Mini.pdf
24S	https://LAoE.link/millis_overflow.html	https://www.gammon.com.au/millis
24S	https://LAoE.link/Microchip_48MHz_App_Note.html	https://microchipdeveloper.com/32arm:samd21-code-gcc-clock-system-dfll48m-init
24S	https://LAoE.link/Zenos_hare.html	https://iep.utm.edu/zenos-paradoxes/#SSH3ai
25L	https://LAoE.link/LEM_3D_Files.html	https://www.thingiverse.com/thing:5428550
25L	https://LAoE.link/Lunar_Lander_Demo.html	https://youtu.be/3YYzdJFSJ8U
25L	https://LAoE.link/Beethovens_Fifth.html	https://en.m.wikipedia.org/wiki/Symphony_No._5_(Beethoven)
25L	https://LAoE.link/ARM_Cortex-M_Exception_Handling.html	https://interrupt.memfault.com/blog/arm-cortex-m-exceptions-and-nvic
25L	https://LAoE.link/Frere_Jacques.html	https://commons.wikimedia.org/wiki/File:Fr%C3%A8re_Jacques.svg
25S	https://LAoE.link/ARM_EXC_RETURN_register.html	https://developer.arm.com/documentation/107706/0100/Exceptions-and-interrupts-overview/EXC-RETURN?lang=en
25O	https://LAoE.link/LilyPond.html	http://lilypond.org/
26L	https://LAoE.link/LDR_tutorial.html	https://learn.adafruit.com/photocells?view=all
26L	https://LAoE.link/Theremin.html	https://www.rbth.com/history/331078-theremin-soviet-inventor
26L	https://LAoE.link/LCD-16396_SerLCD.html	https://www.sparkfun.com/products/16396
26L	https://LAoE.link/Our_theremin_demo.html	https://youtu.be/UjUxDhh2Grg
26L	https://LAoE.link/Theremin_theremin_demo.html
26N	https://LAoE.link/SerDes_Devices.pdf	https://chenweixiang.github.io/docs/SerDes_Architectures_and_Applications.pdf
26N	https://LAoE.link/Hobby_Servo_Tutorial.html	https://learn.sparkfun.com/tutorials/hobby-servo-tutorial/all
26N	https://LAoE.link/I3C.html	https://www.mipi.org/specifications/i3c-sensor-specification
26N	https://LAoE.link/Philips_I2C_Manual.pdf	https://www.nxp.com/docs/en/application-note/AN10216.pdf
26N	https://LAoE.link/ASCII_Codes.html	https://www.w3schools.com/charsets/ref_html_ascii.asp
26W	https://LAoE.link/SparkFun_Microphone_Breakout.html	https://www.sparkfun.com/products/12758
26W	https://LAoE.link/26W_Voice_Recorder_demo.html	https://youtu.be/f38IAjz6zAY
27N	https://LAoE.link/RTOS_List.html	https://en.wikipedia.org/wiki/Comparison_of_real-time_operating_systems
27N	https://LAoE.link/embOS.html	https://www.segger.com/products/rtos/embos/
27N	https://LAoE.link/CMSIS-RTOS2.html	https://arm-software.github.io/CMSIS_5/RTOS2/html/modules.html
27N	https://LAoE.link/embOS-MPU.pdf	https://www.segger.com/downloads/embos/UM01063_embOS_MPU_CortexM_ES.pdf
27N	https://LAoE.link/embOS_manual.pdf	https://www.segger.com/downloads/embos/UM01001
27S	https://LAoE.link/Installing_embOS.html	https://learningtheartofelectronics.com/errata2/updates-to-chapter-27s-installing-segger-embos/
27S	https://LAoE.link/embOS_download.html	https://www.segger.com/downloads/embos/
27L	https://LAoE.link/Wurlitzer.html
27L	https://LAoE.link/Jukebox_Demo.html	https://youtu.be/fKVtoX3ReHU
27L	https://LAoE.link/embOS_interrupts.html	https://www.segger.com/doc/UM01001_embOS.html#Interrupts
27L	https://LAoE.link/Charlie_MTA.html
27L	https://LAoE.link/Comm_Failure.html
27W	https://LAoE.link/IR_Formats.pdf	https://www.vishay.com/docs/80071/dataform.pdf
28N	https://LAoE.link/SPI_DACs.pdf	https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/DataSheets/20002249B.pdf
28N	https://LAoE.link/Robot_Base.html	https://www.parallax.com/product/arlo-robot-base-kit/
28N	https://LAoE.link/Robot_Chassis.html	https://www.pololu.com/category/63/pololu-5-robot-chassis-rrc04a
28N	https://LAoE.link/Polapulse.html	https://lateralscience.blogspot.com/2015/02/the-polapulse-battery.html
28N	https://LAoE.link/Proximity_Sensor.html	https://www.sparkfun.com/products/12728
28N	https://LAoE.link/Inverted_Pendulum_1.html
28N	https://LAoE.link/Inverted_Pendulum_2.html
28N	https://LAoE.link/How_Steppers_Work.html	https://www.digikey.com/en/blog/the-basics-of-stepper-motors
28N	https://LAoE.link/Microstepping.html	https://www.faulhaber.com/en/know-how/tutorials/stepper-motor-tutorial-microstepping-myths-and-realities/
28N	https://LAoE.link/XY_Display.html	https://youtu.be/Q-YKzO6o_As
28N	https://LAoE.link/28N_XY_Display.html	https://youtu.be/eBnrSNnwqLs
28N	https://LAoE.link/XY_Demo.c	https://LAoE.link/28N_XY_Display_Demo.c
28N	https://LAoE.link/Effects.html	http://www.circuit-finder.com/categories/sound-and-oscillator/sound-generator/page-1
28N	https://LAoE.link/Outer_Limits.html
28O	https://LAoE.link/RCA_Numitron.html	https://upload.wikimedia.org/wikipedia/commons/2/2e/RCA_Numitron_display_device_June_1974.jpg
28O	https://LAoE.link/Adafruit.com	https://www.adafruit.com
28O	https://LAoE.link/SparkFun.com	https://www.sparkfun.com
28O	https://LAoE.link/Parallax.com	https://www.parallax.com
28O	https://LAoE.link/Pololu.com	https://www.pololu.com
28O	https://LAoE.link/Electronic_Goldmine.com	https://theelectronicgoldmine.com/
28O	https://LAoE.link/DigiKey.com	https://www.digikey.com
28O	https://LAoE.link/Amazon_RP2040.html	https://www.amazon.com/dp/B09NNVNW7M
28O	https://LAoE.link/Amazon.com	https://www.amazon.com
28O	https://LAoE.link/Apex_Surplus.com	https://apexsurplus.com/
28O	https://LAoE.link/Anchor_Electronics.com	https://anchor-electronics.com/
28O	https://LAoE.link/Amazon_Industrial.html	https://www.amazon.com/industrial
28O	https://LAoE.link/Stock_Drive_Products.com	https://www.sdp-si.com/
28O	https://LAoE.link/Adafruit_Large_Stepper.html	https://www.adafruit.com/product/324
28O	https://LAoE.link/SparkFun_Small_Stepper.html	https://www.sparkfun.com/products/10551
28O	https://LAoE.link/Adafruit_Small_Stepper.html	https://www.adafruit.com/product/918
28O	https://LAoE.link/Adafruit_Stepper_Driver.html	https://www.adafruit.com/product/2448
28O	https://LAoE.link/Servo_Sizes.html	https://www.motionrc.com/blogs/motion-rc-blog/servo-size
28O	https://LAoE.link/Muscle_Wires.com	http://www.musclewires.com/
28O	https://LAoE.link/Memory_Metal_Driver.html	https://www.dfrobot.com/category-152.html
28O	https://LAoE.link/Miga_Robotics.com	https://www.migarobotics.com/shop-1
28O	https://LAoE.link/Muscle_Wire_Kits.html	https://musclewires-com.3dcartstores.com/Moving-Hand-Kits_c_107.html
28O	https://LAoE.link/MaxSonar.html	https://maxbotix.com/products/mb1010
28O	https://LAoE.link/Motion_Sensor.html	https://www.sparkfun.com/products/13285
28O	https://LAoE.link/Color_Sensor.html	https://www.parallax.com/product/tcs3200-db-color-sensor/
28O	https://LAoE.link/Accel_Gyro_Guide.html	https://www.sparkfun.com/pages/accel_gyro_guide
28O	https://LAoE.link/Analog_Accel.html	https://www.adafruit.com/product/163
28O	https://LAoE.link/Digital_Accel.html	https://www.adafruit.com/product/1231
28O	https://LAoE.link/Adafruit_Accel_Gyro.html	https://www.adafruit.com/product/4754
28O	https://LAoE.link/SparkFun_Accel_Gyro.html	https://www.sparkfun.com/products/18020
28O	https://LAoE.link/Linear_Hall_Effect.html	https://www.sparkfun.com/products/13679
28O	https://LAoE.link/Latching_Hall_Effect.html	https://www.sparkfun.com/products/9312
28O	https://LAoE.link/Binary_Hall_Effect.html	https://www.sparkfun.com/products/14709
28O	https://LAoE.link/Digital_Compass.html	https://www.adafruit.com/product/1746
28O	https://LAoE.link/Flex_Sensor.html	https://www.adafruit.com/product/166
28O	https://LAoE.link/SparkFun_Text2Speech.html	https://www.sparkfun.com/products/18873
28O	https://LAoE.link/Amazon_Text2Speech.html	https://www.amazon.com/SYN6288-Module-Synthesis-Real-Life-Pronunciation/dp/B082WCNS9Y
28O	https://LAoE.link/SpeakUp.html	https://www.sparkfun.com/products/18876
28O	https://LAoE.link/Nicia_Voice.html	https://www.sparkfun.com/products/21219
28O	https://LAoE.link/Adafruit_LCD_Backpack.html	https://www.adafruit.com/product/292
28O	https://LAoE.link/SparkFun_SerLCD.html	https://www.sparkfun.com/products/16396
28O	https://LAoE.link/Adafruit_OLEDs.html	https://www.adafruit.com/category/98
28O	https://LAoE.link/Adafruit_128x32_OLED.html	https://www.adafruit.com/product/661
28O	https://LAoE.link/Intelligent_LED.pdf	https://www.silicon-ark.co.uk/datasheets/pd2435-datasheet-siemens.pdf
28O	https://LAoE.link/Octopart.com	https://Octopart.com
28O	https://LAoE.link/LED_Array.html	https://www.adafruit.com/search?q=KWL-R1025BB
28O	https://LAoE.link/Serial_LED_Array.html	https://www.adafruit.com/product/1721
28O	https://LAoE.link/E_Ink_Bar_Graph.html	https://www.digikey.com/en/products/detail/e-ink-corporation/SCD722003/3740382
28O	https://LAoE.link/E_Ink_Numeric.html	https://www.digikey.com/en/products/detail/e-ink-corporation/SCB721001/6007723
28O	https://LAoE.link/Solid_State_Relay.html	https://www.sparkfun.com/products/13015
28O	https://LAoE.link/RF_Link_Xmit.html	https://www.sparkfun.com/products/10534
28O	https://LAoE.link/RF_Link_Rcvr.html	https://www.sparkfun.com/products/10532
28O	https://LAoE.link/SPI_433_Xcvr.html	https://www.adafruit.com/product/3071
28O	https://LAoE.link/SPI_915_Xcvr.html	https://www.adafruit.com/product/3070
Appendix Transmission	https://LAoE.link/Critical_Length.pdf	https://www.polarinstruments.com/support/cits/Critical_length.pdf
Appendix Transmission	https://LAoE.link/What_is_Critical_Length.pdf	https://forums.futura-sciences.com/attachments/electronique/174749d1330793613-faq-questions-souvent-posees-electronique-criticallength.pdf
Appendix Transmission	https://LAoE.link/Wave_Reflections.html	https://www.animations.physics.unsw.edu.au/labs/travelling_waves/waves_lab.html#reflection
Appendix Transmission	https://LAoE.link/Pulse_Physics.html	https://en.wikipedia.org/wiki/Pulse_(physics)
Appendix Transmission	https://LAoE.link/Reflections.pdf	https://www.ti.com/lit/an/snla027b/snla027b.pdf
Appendix Transmission	https://LAoE.link/LVDS_Data_Handbook.pdf	https://www.ti.com/lit/ug/slld009/slld009.pdf
Appendix E	https://LAoE.link/Testbenches.pdf	https://laoe.link/appendix/Appendix_E_Testbenches.pdf
Appendix E	https://LAoE.link/AND_OR_Simulation.html	https://www.edaplayground.com/x/Qh8n
Appendix E	https://LAoE.link/Silly_Name_Simulation.html	https://www.edaplayground.com/x/XiFp
Appendix E	https://LAoE.link/D_Flip-Flop_Simulation.html	https://www.edaplayground.com/x/SNYP
Appendix E	https://LAoE.link/Auto_Clock_Simulation.html	https://www.edaplayground.com/x/RHzc
Appendix E	https://LAoE.link/Auto_Clock_Simulation.html	https://www.edaplayground.com/x/RHzc
Appendix E	https://LAoE.link/Initilization_Simulation.html	https://www.edaplayground.com/x/EEfY
Appendix F	https://LAoE.link/Equipment.pdf	https://laoe.link/appendix/Appendix_F_Equipment.pdf
Appendix G	https://LAoE.link/Sources.pdf	https://laoe.link/appendix/Appendix_G_Sources.pdf
Appendix H	https://LAoE.link/Analog_Parts.html	https://laoe.link/appendix/Parts_List_Analog_Labs.html
Appendix H	https://LAoE.link/1N5294.html	https://learningtheartofelectronics.com/about-the-book/parts-lists/substitutions-for-1n5294-diode/
Appendix H	https://LAoE.link/2N5485.html	https://learningtheartofelectronics.com/about-the-book/parts-lists/substitutions-for-the-2n5485-jfet/
Appendix H	https://LAoE.link/Digital_Parts.html	https://laoe.link/appendix/Parts_List_Digital_Labs.html
15N	https://LAoE.link/FPGA/15N_TwoBitAdder.v
15L	https://LAoE.link/Installing_the_FPGA.html
15L	https://LAoE.link/FPGA/15L_CombLogic.v
15L	https://LAoE.link/FPGA/15L_MuxTwoWays.v
15L	https://LAoE.link/FPGA/15L_TwoBitComp.v
15L	https://LAoE.link/FPGA/15L_TwoBitAGB.v
15L	https://LAoE.link/FPGA/15L_TwoBitAdder.v
15L	https://LAoE.link/FPGA/15L_Vote3.v
15L	https://LAoE.link/FPGA/15L_Vote3.v
15S	https://LAoE.link/FPGA/60-webfpga.rules
15S	https://LAoE.link/FPGA/15S_ButtonLED.v
15S	https://LAoE.link/FPGA/15S_ButtonExtLED.v
15S	https://LAoE.link/FPGA/15S_OpenDrain.v
15O	https://LAoE.link/LAoE_Chapter_15O.pdf
15LS	https://LAoE.link/LAoE_Chapter_15LS.pdf
16N	https://LAoE.link/FPGA/16N_FlipFlops.v
16L	https://LAoE.link/FPGA/16L_FlipFlops.v
16L	https://LAoE.link/FPGA/16L_ShiftRegisters.v
16S	https://LAoE.link/FPGA/16S_FFTricks.v
17N	https://LAoE.link/FPGA/17N_Counters.v
17O	https://LAoE.link/LAoE_Chapter_17O.pdf
18N	https://LAoE.link/FPGA/18N_Life.v
18N	https://LAoE.link/FPGA/18N_ROM_KeyDcdr.v
18N	https://LAoE.link/FPGA/18N_ROM_OneHot.v
18N	https://LAoE.link/FPGA/18N_RAM_32x8.v
18N	https://LAoE.link/FPGA/18N_RAM_Param.v
18L	https://LAoE.link/FPGA/18L.DEA009.png
18L	https://LAoE.link/FPGA/18L.DEA012.png
18L	https://LAoE.link/FPGA/18L_RAM16x4.v
18L	https://LAoE.link/FPGA/18L_RAM2P_16X4.v
18L	https://LAoE.link/FPGA/18L_Hardware_Test.v
18L	https://LAoE.link/FPGA/18L_P2S_Test_Hdr.v
18L	https://LAoE.link/FPGA/18L_P2S_Test.v
18L	https://LAoE.link/FPGA/18L_P2S_Test_Continuous_Clk.v
18L	https://LAoE.link/FPGA/18L_P2S_Test_BD.v
18L	https://LAoE.link/FPGA/18L_Decoder_ROM_Test.v
18L	https://LAoE.link/FPGA/18L_Decoder_Auto_Start.v
18L	https://LAoE.link/FPGA/18L_Counter_Display.v
18S	https://LAoE.link/FPGA/18S_EBR_ROM.v
18S	https://LAoE.link/FPGA/18S_CASE_EBR_ROM.v
19N	https://LAoE.link/FPGA/19N_Odd_Counter_Struc.v
19N	https://LAoE.link/FPGA/19N_Odd_Counter_Behav.v
19L	https://LAoE.link/FPGA/19L.1.3_Define_States.html
19L	https://LAoE.link/FPGA/19L.1.3_State_Diagram.html
19L	https://LAoE.link/FPGA/19L.1.3_PSNS_Table.html
19L	https://LAoE.link/FPGA/19L.1.4_Binary_Table.html
19L	https://LAoE.link/FPGA/19L.1.4_NS_Equations.html
19L	https://LAoE.link/FPGA/19L.1.4_Output_Equations.html
19L	https://LAoE.link/FPGA/19L.1.4_Schematic.html
19L	https://LAoE.link/FPGA/19L.1.4.1_Build.html
19L	https://LAoE.link/FPGA/19L.1.5_FF_Memory.html
19L	https://LAoE.link/FPGA/19L.1.5_FF_Memory_ROM.v
19L	https://LAoE.link/FPGA/19L.1.6.1_Reac_Tmr_Struc.v
19L	https://LAoE.link/FPGA/19L.1.6.2_Reac_Tmr_Behav.v
19L	https://LAoE.link/FPGA/19L.1.6.2_Reac_Tmr_Behav_Shrt.v
19W	https://LAoE.link/FPGA/19W_Complex_Blink_Struc.v
19W	https://LAoE.link/FPGA/19W_Complex_Blink_Struc_ROM.v
19W	https://LAoE.link/FPGA/19W_Complex_Blink_Behav.v
19W	https://LAoE.link/FPGA/19W_Complex_Blink_Behav_8Hz.v
19W	https://LAoE.link/FPGA/19W_Complex_Blink_Arduino.ino
20L	https://LAoE.link/FPGA/20L_74LS502.v
21L	https://LAoE.link/FPGA/21L_Anode_Test.v
21L	https://LAoE.link/FPGA/21L_Mux_Display.v
21L	https://LAoE.link/FPGA/21L_Mux_Counter.v
21L	https://LAoE.link/FPGA/21L_LFSR_7BIT.v
21L	https://LAoE.link/FPGA/21L_Sine_Values.v
22L	https://LAoE.link/micro1/22L_Environment_Test.c
22L	https://LAoE.link/micro1/22L_Blink_External_LED_Skeleton.c
22L	https://LAoE.link/micro1/22L_LED_Blink_CMSIS.c
22L	https://LAoE.link/micro1/22L_LED_Blink_Delay.c
22L	https://LAoE.link/micro1/22L_LED_Blink_Delay_Function.c
22L	https://LAoE.link/micro1/22L_LED_Toggle_RMW.c
22L	https://LAoE.link/micro1/22L_LED_Toggle_Atomic.c
22N	https://LAoE.link/Microcontroller_Parts.pdf
22N	https://LAoE.link/micro1/SAMD_Pin_Spreadsheet.xlsx
22S	https://LAoE.link/Installing_EStudio.html
22O	https://LAoE.link/LAoE_Chapter_22O.pdf
23L	https://LAoE.link/micro2/23L_Systick_Delay.c
23L	https://LAoE.link/micro2/23L_Pushbutton_LED_On.c
23L	https://LAoE.link/micro2/23L_Pushbutton_Toggle_FSM.c
23L	https://LAoE.link/micro2/23L_Complex_Blink_FSM.c
23L	https://LAoE.link/micro2/23L_Complex_Blink_FSM_Fast_Resp.c
23L	https://LAoE.link/micro2/23L_Matrix_Keypad_Scan.c
23S	https://LAoE.link/micro2/23S_Isolated_Hardware.c
23S	https://LAoE.link/micro2/23S_FSM_Skeleton.c
24L	https://LAoE.link/micro3/24L_Simple_ADC_Loop.c
24L	https://LAoE.link/micro3/24L_DAC_Skeleton.c
24L	https://LAoE.link/ClockSysInit48M.c
24L	https://LAoE.link/ClockSysInit48M.h
24N	https://LAoE.link/micro3/SAMD_Pin_Use.xlsx
24W	https://LAoE.link/micro3/24W_EnableGCLK0IO.c
24W	https://LAoE.link/micro3/24W_ClockSysInit8M.c
24S	https://LAoE.link/micro3/24S_Waveform_Processing.c
24S	https://LAoE.link/micro3/24S_Waveform_Processing_Sol.c
25L	https://LAoE.link/micro4/25L_TC4_Handler.c
25L	https://LAoE.link/micro4/25L_TC_Skeleton.c
25L	https://LAoE.link/micro4/25L_DAC_Part_2_Sol.c
25L	https://LAoE.link/micro4/25L_Piano.c
25O	https://LAoE.link/LAoE_Chapter_25O.pdf
25O	https://LAoE.link/micro4/25O_PlaySong_Data.c
25S	https://LAoE.link/micro4/25S_Interrupt_Demo.c
25W	https://LAoE.link/micro4/25W_Interrupt_Pulse_Measurement.c
26L	https://LAoE.link/micro5/26L_SPI_LCD_Test.c
26L	https://LAoE.link/micro5/26L_SPI_Digipot_Main.c
26L	https://LAoE.link/micro5/26L_Digipot_Volume.c
26L	https://LAoE.link/micro5/26L_ADC_LDR_Test.c
26L	https://LAoE.link/micro5/26L_Working_Theremin.c
26W	https://LAoE.link/micro5/26W_SPI_Interrupt_Driver.c
26W	https://LAoE.link/micro5/26W_SPI_Interrupt_Driver_Complete.c
26W	https://LAoE.link/micro5/26W_SPI_RAM_Demo.c
26W	https://LAoE.link/micro5/26W_Voice_Recorder.c
27S	https://LAoE.link/Installing_embOS.html
27S	https://LAoE.link/micro6/system_samd21.c
27L	https://LAoE.link/micro6/BSP.h
27L	https://LAoE.link/micro6/BSP.c
27L	https://LAoE.link/micro6/27L_New Task_OS_StartLEDBlink.c
27L	https://LAoE.link/micro6/27L_Task_Event.c
27L	https://LAoE.link/jukebox/BSP.h
27L	https://LAoE.link/jukebox/BSP.c
27L	https://LAoE.link/jukebox/OS_StartJukebox.c
27L	https://LAoE.link/jukebox/songs.h
27W	https://LAoE.link/micro6/27W_IR_Remote_Decode.c
27W	https://LAoE.link/micro6/27W_OS_StartJukebox_IR.c
28N	https://LAoE.link/28N_XY_Display.c
28N	https://LAoE.link/28N_LAoE_Vectors.xls
28O	https://LAoE.link/LAoE_Chapter_28O.pdf