1630:

PCBs arrived.

Testing the main board so far, have a major problem. Knew stress and rush would bite me and I’d screw this up on some project eventually. Addon header is backwards, lol. I can work around it with bodge wires and cutting traces but this already cuts into time I don’t have. I guess the GPIO pins won’t be used. They were wired but I wasn’t planning on using them anyway.

After some initial troubles I do have debug and program working. I2C soft master code doesn’t seem to be working correctly (or at least the OLED isn’t initializing) so the next task is to troubleshoot that. Hopefully it’s as simple as my delay constants being wrong. Once I know I2C master works and something shows on the OLED, I’ll work on getting the slave MCU code debugged.

1900:

soft i2c master bugs fixed, timings also fixed.

Need to start work with the sub MCU now.