23.02.2016

Consumption of Arduino Pro Mini and Iduino Pro Mini 5V

I used
Arduino ATMEGA328P Pro Mini 5V 16MHz
arduino pro mini
and
Iduino ATMEGA328P Pro Mini 5V 16MHz
iduino pro mini

With a small correction - I destroyed the power LED diode on both boards.
destroy power led

For all measurements I kept origin voltage regulators.

The testing has this procedure:
Arduino falls asleep after start and sleeps 8s. Then it wakes up for 8s.

Table of measured currents for various voltages by various number of batteries

Battery and Board Input voltage VIN sleep VIN wake
4xAAA Arduino Pro Mini 5V 5.78V 10.9µA 10.8mA
3xAAA Arduino Pro Mini 5V 4.51V 10.2µA 10.43mA
4xAAA Iduino Pro Mini 5V 5.78V 25.2µA 14.28mA
3xAAA Iduino Pro Mini 5V 4.51V 37.7µA 9.54mA

 
Here is table for Arduino Pro Mini 3.3V. This measurement I did previously, more is here. Note, the batteries are more fresh.

Battery and Board Input voltage VIN sleep VIN wake
4xAAA Arduino Pro Mini 3.3V 5.8V 51.8µA 3.801mA
3xAAA Arduino Pro Mini 3.3V 4.58V 48.0µA 3.783mA

 
Testing code:

#include "LowPower.h"

void setup() {
}

void loop() {
     LowPower.powerDown(SLEEP_8S, ADC_OFF, BOD_OFF);
     delay(8000);
}

Conclusion

The classic Arduino Pro Mini clone has very low consumption in sleep mode. I'am sure it is less than self-discharge of batteries so It's suitable to be powered by batteries. The Iduino has 2-3 times more consumption in sleeping mode but It's still very low and even lower than Arduino Pro Mini 3.3V.

Similar articles:
Arduino Low Power - How To Run ATmega328P For a Year On Coin Cell Battery

Consumption of Arduino Pro Mini 3.3V

https://andreasrohner.at/posts/Electronics/How-to-modify-an-Arduino-Pro-Mini-clone-for-low-power-consumption/