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0 votes
2 answers
90 views

What is the safest way to control another circuit?

From my custom board with an MCU I need to connect to an Interlock Pin of another circuit. I have a lot of options, but I don't know what is better. Using an optocoupler, but I'm afraid the output ...
Knowledge's user avatar
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2 votes
2 answers
322 views

Circuit for high-voltage pulses using Raspberry Pi PWM to drive a piezoelectric actuator

I am trying to engineer a device to separate red blood cells from blood plasma in 100mm x 1mm capillary tubes using the Raspberry Pi GPIO pin PWM feature and a piezoelectric actuator. The pulses ...
Vincent D.'s user avatar