16-01-2015, 20:16
(16-01-2015, 18:38)chokapick Wrote: Anyone knows approximately what will be the power consumption of an RX unit powered by batteries with just the DHT22 sensor?
I would like to estimate the consumption of the circuit in order to decide if I'll need to find a better power solution or the batteries will be enough.
Do you mean RX unit or TX unit?
Anyway, only the Arduino Nano have a consumption of around 35mA, which not makes it very suitable to be powered by batteries, unless you are thinking in large capacity batteries.
If your question is about the TX unit with just the DHT22 sensor, you may expect an average consumption of 80 to 90 mA.