Teensy 3.1 or ATmega328P Low Power Application

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1

Hi guys,

I looked around but hoping someone can shed some light as well. I have an application that uses a RF module to transmit data every hour. Teensy 3.1 offers some low powered code however has additional components that uses some of the power and the ATmega328 (http://www.atmel.com/Images/doc8161.pdf) chip alone offers low power consumption as well.

I'm deciding between using a Teensy 3.1 with a RF module connected and use it as it is

or

programming an ATmega328 with a programmer and connect the RF module to that.

Which one would use less power?

Any recommendation or feedback are welcomed. Thanks in advance

2

Imo, teensy is overkill, unless you are doing something else than sending info through rf.

What RF module are you using? Check if module supports low power too. Ive read xbee and nrf nordic anthenas do sleep.

3

Thanks for the reply Mart256,

I am using the 3DR 915MHz module. I'm really after something that uses minimum power out of the two but I am open for suggestions!

My application will be used for data logging and I'll be running 5xATtiny44 as slaves communicating via i2c protocol. I calculated the current being used on average 5.1uAh each. These readings will be sent back to a micro controller (teensy or ATMEGA328).