HI, Im trying to count the amount of signals of a stamping machine. Every 200miliseconds there is a signal. Is this possible to count within node-red and a Raspberry PI 3b+? or is the processing time to count a signal more then 200 miliseconds?

While 200 mS should be fine - for something that is happening like that all day I would probably use something more dedicated like an arduino or esp8266 chip to be a dedicated counter - then feed the result to Node-RED. That way you won't miss anything if you have to restart the Pi for whatever reas…

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GPIO processing speed

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Robbo 14 June 2019 12:30 21

+1 for using a ESP based system.

zenofmud 14 June 2019 12:36 22

+2 for using a ESP based system.

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GPIO processing speed

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