korn-e

Notes

Quickly scratching-out notes for building this as it's been a bit of a nightmare.

Using Adafruit's tinyisp to program the Atmega328p once its in the breakout board doesn't work out-of-the box using the Arduino IDE. Instead, you have to generate a .hex file, and then upload it manually using avrdude.

To generate the .hex file, click the Sketch menu and select Export compiled Binary. This will write out two .hex files in the firmware directory.

Next load the .hex file onto the Atmega328p using avrdude:

avrdude -c usbtiny -p atmega328p -B10 -U flash:w:firmware.ino.standard.hex

The secret ingredient is the -B10 flag, without this upload errors occur and you're screwed (this is what happens when you try to use the Arduino IDE directly).

References

• https://github.com/jjg/laserharp/blob/main/firmware.py
• https://docs.micropython.org/en/latest/esp8266/tutorial/neopixel.html
• https://www.makerfabs.cc/article/micropython-esp32-tutorial-interfacing-ultrasonic-sensor.html
• https://github.com/jjg/linebird/blob/main/journal.md
• https://github.com/miketeachman/micropython-esp32-i2s-examples
• https://wiki.dfrobot.com/DFPlayer_PRO_SKU_DFR0768
• https://github.com/DFRobot/DFRobot_DF1201S
• https://create.arduino.cc/projecthub/robocircuits/neopixel-tutorial-1ccfb9
• https://github.com/CharlesJGantt/Illuminate-NeoPixels-using-an-HC-SR04-Distance-Sensor-and-an-Arduino/blob/master/NeoPixels_HC-SR04.ino
• https://github.com/FastLED/FastLED/wiki/Basic-usage
• https://www.arduino.cc/reference/en/language/functions/advanced-io/pulsein/
• https://www.tutorialspoint.com/arduino/arduino_ultrasonic_sensor.htm
• http://www.martyncurrey.com/arduino-atmega-328p-fuse-settings/
• https://forums.adafruit.com/viewtopic.php?t=64694
• http://www.ladyada.net/learn/avr/avrdude.html
• https://learn.adafruit.com/usbtinyisp/avrdude
• https://www.instructables.com/Program-Arduino-Mini-05-with-FTDI-Basic/