My Arduino, ATTiny85, ESP8266/32, RPi (Raspberry Pi) and STM32 (blue pill) projects

• IDE : general setup, particularly about ATTiny85 setup.

• ATTiny85
• ESP8266
• GPIO-pi3: pin diagram for RPi3.
• nano - benchmarks, timer
• pico
• stm8s103f3p6
• stm32 - blinker sketch
• wroom

• audio
• bcm2835
• circuits - various electrical circuits
• debounce a button
• linking
• logic analyser
• serial
• software
• telnet server: dev03-2
• Twiddle-factor FFT for mcus

• riot - an rtos

• gps-every gps and doglcd for nano every for PlatformIO
• pwm-blackpill - in STM32CubeIDE/workspace_1.5.0

• 0clock: nano, ds3231, zeroseg clock with timer
• abaclock: clock made with a RTC clock and an Arduino LED backpack
• alacrity: pills reminder and warnings raised by alarm
• alarm: raises a panic call to alacrity
• atlast: a Forth for mcus based on Walker's Forth
• blinky85: directory containing code for blinking an ATTiny85 from RPi - consider it a baseline for making projects using C++, and not the IDE
• blinkt
• crunky: start of a unikernel for Raspberry Pi 3
• dev01: meditation timer
• dev02: projects for the DEV02 home-made board: green_red and mhz85
• dev03 WITHDRAWN
• dev04 WITHDRAWN
• dev05: ATTiny85 programmer for the Pi
• dev06 WITHDRAWN
• dev07 WITHDRAWN
• dev08: 555 fixed tone generator
• dev09: voltage generator. esp32 mcp4921 simplecli, timer interrupts
• hertz: frequency measurement
• minitone85: working version of tone() for ATtiny85
• mins30-85: 30 minute timer for ATTiny85, programmable from the Pi (DEV01).
• synth: sound synthesizer/tone-maker
• sleep85: conserving power by putting the ATTiny85 to sleep

• i2c: Arduino and RPi3 master, ATTiny85 slave
• i2s
• spi

• Enclosures 10pcs 75 x 54 x 27mm DIY Plastic Project Housing Electronic Junction Case Power Supply Box
• Mini USB nano. Amazon also has good deals on these
• SN74HCxx chips
• VGA breakout board
• ZeroSeg SPI

1306 I2C. WROOM

8x8 I2C

Stereo Audio Jack. G=GND, L=Left speaker, R=Right speaker, 1=unknown, 2=unknown. Underside shown.

doglcd quasi-SPI. NANO/PICO/STM32/WROOM

gps

mcp4921 12-bit DAC. SPI

sdcard-spi

• level-shifting without components