[SOLVED] arduino & battery

[gian72]

Hello to everyone!
I need some info about a compatible mini pro arduino board (3.3v 8mhz).
Removing the power led and removing the power regulator I get power consumption in the uA area. But if I connect the nrf24 when it goes to sleep it consumes around 1.21 mA. The nrf24 is "untouched": I've only added the 470uF capacitor.

Do you know what I can do to get in the uA area with the nrf attached?

Thanks!
Gianluca

[rozpruwacz]

Try another NRF module.

[manutremo]

@gian72 that unit might be bad. If you're using breadboard wires, I'd recommend recheck in them, I've also seen this issue when using bad wires giving unreliable connections.

[gian72]

thanks very much for the quick replys. I will try to exchange the radio module (now it is soldered to the arduino with some spare wires I have).
I'll let you know.

Gianluca

[Nca78]

Hello,

Is your nrf24 initialized and put to sleep by MySensors ?
If yes then I agree with the others, replace it.
If not then it's normal with many clones that consume a lot when connected and not initialized. In that case put a MySensors script using sleep on your board.

Also, 470uF is way too much, it's supposed to be 4.7 and up to something like 47.

[gian72]

Thanks so much for the suggestions!.
I've changed the nrf module with another one and now I've got 4.60uA in sleep... now I'm very satisfied!

Ciao Gianluca