8 replies to this topic

[600mL]

Hi,

 

I am wondering if anyone is running a netduino from a mobile charger power bank? I have attempted to connect use one, and it works fine for the first 10 seconds and then just power off. The current draw is about ~65mA, and the power bank I am attempting to use has a 11,000 mAh battery with two outputs (1A and 2.1A respectively). I am assuming that there is circuitry preventing a 'trickle charge' from the device which I think is quite stupid.

 

If anyone is successfully using a power bank, can you let me know what brand you are using?

[600mL]

Just did some more testing, it seems that the voltage output of the power pack drops from 5.16V to 3.51V after approximately 20 seconds.

[600mL]

I got another power bank with 6000mAh capacity. This one powers the Netduino without any issues. I have plugged in the 11,000mAh power bank into the charger port of the 6000mAh unit. The 11,000mAh charges the 6000mAh unit. This should give me around 10-11 continuous days of running time.

[Chris Walker]

600mL,

Thanks for the follow-up. What are you building? Curious minds want to know

Chris

[Tobias Vandenbempt]

600mL,

Thanks for the follow-up. What are you building? Curious minds want to know

Chris

I am one of those

[600mL]

It is just a data logger that I have connected between the analogue front end and microprocessor of a custom hardware device that seems to be activating in transit. It should be impossible for this device to switch on, but it does. I am logging any data to the SD card that is being received to hopefully narrow down/find out what is switching it on.

 

I actually need to order a few more netduino's and am wondering how much more current the netduino plus 2 uses over the netduino plus. Can I switch off any peripherals that I am not using?

[600mL]

So I ordered two netduino plus 2 boards.

 

Power usage with current program:

 

Netduino Plus = ~85mA

Netduino Plus 2 = ~140mA

Netduino Plus 2 with Ethernet disabled = ~45mA

 

Is there anything else I should disable? I can't disable the SD card because I need it, everything else is fair game.

[Frode]

How did you disable the Ethernet?

[Tobias Vandenbempt]

How did you disable the Ethernet?

 

Good question, my temperature logger logs temperature each 30 minutes. I could make the Netduino more power efficient if turned down the Ethernet between calls. 

 

Interesting!