Electronic General
- IEC 60906-1 (likes ABNT NBR 14136 power plugs)
- Is it possible to drive TTL inputs from 3.3v microcontroller
- Open Collector ouputs
- I’ve been working with a 3.3v device, STM32 blue pill,
- FAT FS
- STM32 Blue Pill ARM development board first look: from Arduino to bare metal programming
- Micro-CAP (simulator)
- Bruno Freitas (bootsector)
- Newton C. Braga (ptBR)
- DipTrace: Design your OCB for OSHpark.com
- An intelligent MPU-401 compatible MIDI interface based on an Atmega microcontroller
- Craig and Heather.net
- I2C
- NES on-a-chip
- MicroControllers and Electronics (Z80, terminal, STM, AVR, etc) by Madis Kaal
- DIPTrace PCB Design pt1 (youtube)
- DIPTrace PCB Design pt2 (youtube)
- Bipolar PROM cross reference list (local mirror 20200229)
- Geoff’s Projects
AVR
- I/O port in AVR
- STK500 Communication Protocol (local mirror 20191219)
- Optiboot
- AVR1200: Using External Interrupts for megaAVRDevice (pdf) (local mirror 20191219)
- AVR130: Setup and Use of AVR Timers (pdf) (local mirror 20191219)
- AVR1201: Using External Interrupts for tinyAVRDevices (pdf) (local mirror 20191219)
- Arduinocade
- Everything You Always Wanted to know about Arduino Bootloading but Were Afraid to Ask
- Transistor Tester
Video and VGA
- VGA Video out on BluePill
- Vidout provides 50 x 18 text output on a STM32F103 CPU
- ESP32 video (github)
- ESP32 Composite Video
- breakout game on PIC12F1572
- Video Standards Are More Than Video Signals
- Why is TV 29.97 frames per second? (youtube)
- A VT100-like terminal for the Z80-MBC2
- propeller-vt100-terminal
Interesting Chips
- NEC uPD7220 (High-Performance Graphics Display Controller - 1980)
- H8 Family
- Motorola_6847
5v and 3v3 conversion
Batteries
ROM, EPROM, EEPROM
Kits
- Emilio Aoki (pt-BR)
- Z80 Nestor, TK83, TK85, ZX80, CEDM-80, Intel SDK-85