The Curious Engineer

All blogs / Electronics

Kevin's Blog

emalliab.wordpress.com

Musings about Kevin's world

ElectronicsZX Spectrum / SinclairRetro computingEmbedded / microcontrollers

’10’15’20’25
Posts
148 from 20 Apr 2007 to 27 Oct 2026
Posting
weekly (50 in the last year)
Kind
personal blog
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2026 44

  1. The ZX81 – Part 2
  2. RC2014/Z80 Minimal ROM
  3. Arduino 62256 SRAM Tester
  4. ZX Spectrum Compatible Video for RC2014 – Part 3
  5. PIO on the Raspberry Pi Pico – Part 3
  6. RC2014 50 Hz Interrupt Source
  7. The ZX81
  8. ZX Spectrum Compatible Video for RC2014 – Part 2
  9. PDS – the Programmers Development System – Part 8
  10. ZX Spectrums – Part 4
  11. ZX Spectrum Compatible Video for RC2014
  12. Simplified Pico VGA – Part 2
  13. Simplified Pico VGA
  14. PDS – the Programmers Development System – Part 7
  15. ZX Mechtrum
  16. PDS – the Programmers Development System – Part 6
  17. PDS – the Programmers Development System – Part 5
  18. ZX Spectrums – Part 3
  19. Watching a Z80 Bus from an RP2350 – Part 3
  20. ZX Spectrums – Part 2
  21. PDS – the Programmers Development System – Part 4
  22. RC2014 Z80 NOP Tester
  23. Basic (and cheap) Benchtop Power Supply
  24. Watching a Z80 Bus from an RP2350 – Part 2
  25. Watching a Z80 from an RP2350
  26. ZX Spectrums
  27. RC2014 Bus Reverser
  28. Z80 CPU Tester (Fail)
  29. PDS – the Programmers Development System – Part 3
  30. IC Pin Straightener
  31. PDS – the Programmers Development System – Part 2
  32. PDS – the Programmers Development System
  33. Easy Z80 SBC
  34. PIO on the Raspberry Pi Pico – Part 2
  35. PIO on the Raspberry Pi Pico
  36. 8×8 (not) “dotstar” RGB LED Matrix
  37. RC2014 – Starting Developing Code
  38. 256 LED SMD “Practice” Board
  39. PCB Workstation
  40. Rc2014
  41. Atari 2600 Cartridge Emulation – Part 4
  42. Mini 8×8 LED Matrix
  43. Atari 2600 Cartridge Emulation – Part 3
  44. RP6502 – The Picocomputer

2025 17

  1. Atari 2600 Cartridge Emulation – Part 2
  2. Atari 2600 Cartridge Emulation
  3. TD4 4-bit DIY CPU – Part 8
  4. TD4 4-bit DIY CPU – Part 7
  5. TD4 4-bit DIY CPU – Part 6
  6. Hackspace LED Panels
  7. TD4 4-bit DIY CPU – Part 5
  8. Cheap ICL8038 Signal Generator Repair
  9. TD4 4-bit DIY CPU – Part 4
  10. TD4 4-bit DIY CPU – Part 3
  11. TD4 4-bit DIY CPU – Part 2
  12. TD4 4-bit DIY CPU
  13. Small Microcontroller Displays
  14. RPi Serial Terminal for RC2014
  15. Rc2040
  16. ESP32-C3 0.42 OLED
  17. Stemma, Grove, QT, Gravity, Duppa, I2C

2024 2

  1. ESP32 Strapping Pins
  2. Raspberry Pi Pico “cstdlib: no such file or directory”

2023 3

  1. Buildroot on the Orange Pi One
  2. Summary of ATmega (AVR) Timers
  3. Unbricking a Seeed Xiao Samd21

2022 4

  1. Emulating a Sony Stereo Remote Control
  2. Micropython on the CH32V307 RISC-V MPU
  3. Arduino Nano Every Timers and PWM
  4. Reading I2C Registers from Circuitpython

2021 10

  1. Arduino Nano Every I2C and SPI Displays
  2. Arduino Nano Every Analog Inputs
  3. Arduino Nano Every Serial Ports
  4. Getting to know the Arduino Nano Every
  5. Getting CTC Mode on Timer 4 on an ATmega32U4
  6. Cheap ILI9488 TFT LCD Displays
  7. Raspberry Pi Pico, Arduino Core and Timers
  8. Comparing Timers on SAMD21 and SAMD51 Microcontrollers
  9. Adafruit Trinket M0 Moving COM Ports in Arduino
  10. MuseScore3, MIDI Export and MIDI Control Change Messages

2020 10

  1. Open University Sense Board as an Arduino
  2. Arduino and a Cheap TFT Display
  3. Arduino as a USB MIDI Re-router for a Yamaha DGX-520 Portable Grand
  4. Raspberry Pi as a USB MIDI Re-router for a Yamaha DGX-520 Portable Grand
  5. Windows Can Only Be Installed on GPT Disks
  6. Alesis Multimix 8 USB FX Timeout Error 0x0005
  7. MiniMO Compatible 4-Pot ADSR
  8. ATtiny85 VGA Sync
  9. Arduino and the Minimus32
  10. Programming a MiniMO Synth

2019 10

  1. Acer Iconia W510 Windows 8.1 Reinstall
  2. More Windows (8) Update Woes
  3. 3U 8HP 4 Channel Panning Mixer
  4. Modular Synth in a Box
  5. ATtiny85 MIDI to CV
  6. ATtiny85 MIDI Tester
  7. Arduino Nano “USB Device Not Recognised” Fix
  8. Dual ScrollPhatHD 17×14 LED Array
  9. Weird Multi-I2C Bus Issues
  10. Pogo-pin ISP Programming Header

2018 10

  1. Pimoroni ScrollPhat using Adafruit IS31FL3731 Library
  2. Charlieplex LED Failure Modes
  3. Raspberry Pi Family Tree
  4. 8×7 LED Array and MCP23017
  5. Extractivism and the Anatomy of AI
  6. ESP01 and SSD1306 OLED from myiot
  7. Fixing Windows 10 Boot Problems
  8. Repeating Number IP Addresses
  9. Arduino, ATtiny85, and Timers
  10. ATtiny85 Synth

2017 2

  1. Repeated iPad Activation Requests
  2. Creating a wireless Pi-LITE from a XinoRF and LoLShield

2016 5

  1. Updating Windows Update when Windows Update Won’t Update
  2. Long playing for 1000 years
  3. Custom Blockly Block “does not know how to generate code”
  4. Codebugs, Glowbugs and DIY Tails
  5. ArduBlockly and the Arduino Nano

2015 7

  1. MIDI Arp
  2. icStation 4x4x4 LED Cube Shield for Arduino – Reprise
  3. Cheap Max7219 Chainable LED Matrix
  4. icStation 4x4x4 LED Cube Shield for Arduino – Software
  5. icStation 4x4x4 LED Cube Shield for Arduino – Hardware Build
  6. Using Maplins N00GA or AM03127 LED Display as an LED Matrix
  7. RPI UART and Maplins N00GA or AM03127 LED Display

2014 4

  1. What shall I do with a new computer?
  2. RPi Ethernet and Wifi at the same time
  3. Find my (R)Pi
  4. Learn to code in one hour

2013 4

  1. Using Windows 7 as an IP Router
  2. Adafruit 8×8 Backpack, HT16K33, RPi
  3. Drayton SCR and RF 2 fault finding
  4. What if you could count all pictures that a computer display could show

2012 9

  1. Wii fixed it (even though they didn’t want us to)
  2. Helluvabyte
  3. Listening to Numbers
  4. Starquake
  5. Minimus usb and 64 LEDs
  6. Minimus usb – getting the solder out
  7. Minimus usb and LUFA
  8. Minimus usb (or my quest to flash some LEDs)
  9. Windows Backup error 80070005 or 800700E1

2011 1

  1. Tenori-on

2010 1

  1. Wireshark lua problem on Windows 7

2009 3

  1. How Many Notes in Mozart’s Requiem?
  2. Error 13: Invalid or Unsupported Executable Format
  3. As Slow as Possible

2008 1

  1. Dual boot Vista, Windows 98 using Grub and Knoppix

2007 1

  1. Low-power household electrical standard?