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Well built and a great write up! Addressing some of the comments/concerns in your documentation: * To protect the ultrasonic mister from bad firmware frying i
by craghack 1y ago
Well built and a great write up!
Addressing some of the comments/concerns in your documentation:
* To protect the ultrasonic mister from bad firmware frying it, you could probably replace R6 with a sufficiently sized capacitor to make an effective DC block
* I've also had issues with a thermal sensor just reading board temp, best solution is to make the sensor a separate board. Short of that, one can mill slots around it and reduce copper pour to reduce thermal conductivety from the PCB.
- jbuch 1y agoThanks! > To protect the ultrasonic mister from bad firmware frying it, you could probably replace R6 with a sufficiently sized capacitor to make an effective DC block That is an excellent idea - I'll definitely keep that in mind for a future version. > I've also had issues with a thermal sensor just reading board temp, best solution is to make the sensor a separate board. Short of that, one can mill slots around it and reduce copper pour to reduce thermal conductivety from the PCB. I ended up just moving the sensor offboard and as far away from the heat source as I reasonably could. I did consider the milled slots + reduced pour option, but given the amount of heat generated by the LEDs, it seemed best to move the sensor further away.
- craghack 1y agoMost of my time designing hardware is spent trying to find ways to prevent the doofus writing the firmware from releasing the magic smoke. I am that doofus