Odds

Firmware for the Sebsongs Modular Odds eurorack module sold on Thonk.

Background

This is an original Sebsongs Modular firmware.

Modifying the firmware

The firmware is shared on this github page and anyone is welcome to make modifications for their own use and share it with others.

Version history

The first version uploaded to this repo is version 1.1.

Prerequisites for uploading firmware to an Arduino Nano board

• Install Arduino IDE 1.8.19. It should work fine with the latest version 2.XX too, but has not been thorougly tested yet.
• For the Adafruit Pro Trinket 5V, a support package must be installed. Follow the instructions over at Adafruits website.
• Connect the Adafruit Pro Trinket 5V board to an available USB port on your computer with a USB to USB micro cable.
• Do not have the Pro Trinket connected to the module PCB while uploading code. Remove it from the module.

Uploading the firmware

• Open the .ino file in Arduino IDE.
• Make the following settings in the Tools menu:
  • Board: Pro Trinket 5V/16MHz (USB)
  • Programmer: USBtinyISP
• Compile the firmware by pressing CMD+R (mac) or CTRL+R (win). The Arduino compiler should say "Done compiling" and return no errors.
• Press the momentary switch once on the Pro Trinket. The onboard red onboard LED should now start fading in and out, indicating that the bootloader is enabled.
• While the LED is fading in and out, upload the firmware to the Nano board by pressing CMD+U (mac) or CTRL+U (win). If everything went well, the Arduino IDE will return "Done uploading" and return no errors.
• Double check that the Pro Trinket is seated the right way on the module PCB before powering on!