This week’s accomplishments
- This week I received the components and PCB that I ordered for the power management board.
- I built the circuit and tested it, but ran into a few issues.
- For some reason, the MOSFET section of the LV circuit is not working — that is, I am able to step down the 24V to a constant 6V for the pump, but then when I try to modulate the 6V with a MOSFET + PWM signal from the Pi, the voltage at the pump is inconsistent and very low. Still debugging.
Next Week’s Deliverables
- Finish debugging the circuit and integrate it with the PID loop algorithm for the kettle/heating element.
- Make any necessary modifications to the PCB after debugging — hopefully without ordering a new board (changing resistor values, etc).
Status Report: 1 week behind schedule. Plan to get back on schedule by completing the circuit debugging this week. This should be ok as I left some buffer for debugging, but want to make sure I resolve all major issues as soon as possible so they don’t block any of the integration work with the rest of the team.