nodemcu and rfm69HW-S2
Topic: nodemcu and rfm69HW-S2
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Re: nodemcu and rfm69HW-S2
Jul 20, 2019, 04:55 pm
Quote from: Rob_Muller on Jul 20, 2019, 03:39 pm
you may have fried your radio. VIN on a nodeMCU is 5V!!
Vin is at whatever voltage externally supplied to that pin; it does not get any voltage from the NodeMCU if it's powered through another pin.
You're probably thinking of VU, which is the USB voltage, and which only can supply power if the NodeMCU is connected to the USB.
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