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hallboyone / RaspberryLatte

A full stack suite to add smarts to a single boiler espresso machine using a Raspberry Pi Pico as the brains.
MIT License
15 stars 1 forks source link

5V flow rate not supported by control board without modifications #11

Open hallboyone opened 1 year ago

hallboyone commented 1 year ago

The control board was designed for 3.3V flow sensors. Turns out, they are almost exclusively 5V. To get around this with the current design, a jumper has to be soldered on and a voltage divider used to drop the 5V signal down to 3V. This should be updated in the next version of the board so no jumpers are needed. This is also related to issue #8 discussing cleaning the power to the flow sensor.

hallboyone commented 1 year ago

I'm working on an update for the PCB that addresses this. Screenshot 2023-05-04 at 10 11 33 PM