kevindosborn/sc-current-source-titano

CircuitPython code for pyportal titano to control supercables current source

Repo for pyportal titano code that will be used for controlling 8 channel current source

To be used in conjunction with code in this repo: https://github.com/saewoonam/webserial-current-source

Code in the qt_py folder works... Other code is still in development

• This code has been written for the Adafruit QT PY board. But, it will also work on the titano.
• It uses a different DAC. Code for the 8 channel DAC needs to be added

• Installation

  • Make sure circuitpython is installed, if not follow these instructions
  • Copy contents of qt_py folder into the "CIRCUITPY" disk that represents the flash storage on the microcontroller
  • Reset the device by hitting the reset button on the back or unplug/plug board back in to USB port

Description of folders:

• adafruit-circuitpython-bundle-6.x-mpy-20201126: has circuit python 6 libraries that correspond to uf2 file
• titano_cpy_v5: files from titano board that worked with v5 of circuit python
• titano_cpy_v6: files from titano board that worked wtih v6 of circuit python

Things to do

• write instructions on how to install code on to bare titano
• Add python code to set current by talking to DAC chip... Difficulty level: easy
• write to DAC.txt file on SD card everytime DAC values are changed... Difficulty level: medium
• Add on/off button for all channels of the current source... Difficulty level: hard

screenshot

useful links:

• (circuitpython firmware)[https://circuitpython.org/board/pyportal_titano/]
• (adafruit libraries for circuit python v6) [https://circuitpython.org/libraries]