Power consumption of Arduino UNO

Other Hardware 3rd Party Boards
1

Hi Guys,

Really confused About the power consumption of Arduino UNO.
I am measuring with a multimeter.

Normal mode : 12 mA
Idle Sleep mode = 6 mA

I read that power consumption of Arduino UNO should be 46 mA in normal mode. I have a cheap Arduino UNO from AZ- Delivery.

Please guide me how can i reduce my power consumption even more, as i am planning to use UNO for IOT.

Thank you

2

Unos are power hogs, they are not designed for low power.

Use a pro mini (based on same microcontroller, but in smaller package and without the onboard serial adapter), so you can disconnect the usb serial adapter, and remove the power led and regulator. After doing that, when you put it into power down sleep with the ADC off, can get power consumption down to microamp range.

3

Thank you for your time.

The Problem is i am using a LoRa Shield on Arduino UNO which is not compatible with pro mini.

https://www.dragino.com/products/module/item/102-lora-shield.html

Is this possible to se pro mini wuth this LoRa Shield?

I am quite new having less experience.

4

asifsaeed999:
The Problem is i am using a LoRa Shield on Arduino UNO which is not compatible with pro mini.

In the physical sense then the Dragino shield wont directly plug into a Pro Mini in the same way as it would to a UNO.

But a 5V Pro Mini does have the pin connections to make it work, check the pinout diagrams ................