On: Show HN: JBR-001 – An open-source 3D printable desktop robot

[fenykep]

I assume at those scales it quickly becomes economical to design a custom board instead of using modules that are probably seated on cheap custom PCBs anyways.

[taneq → fenykep]

If you have a bit of time to learn the skills, it’s economical to design a custom board even for 5-10 units. An integrated controller module like an ESP32 can basically just be plonked onto a board with a voltage regulator and used like an Arduino.

[esseph → fenykep]

Board or not, it's the chip here that is expensive.