I would like to send a sensor signal (e.g. Temperature) wirelessly to a computer for a short distance (e.g.3~5 meters). The challenge is I have a very low power source (3V 50mV). I am thinking of using a
Bluetooth chip: (Good quality signal, but I feel that the chips that I found online are power-draining)
Antenna: with the amount of power I am delivering noise might be an issue if I am it is impossible to operate of high frequencies.
What is the best way to transmit my signal from the sensor wirelessly with as low power as possible?