Sink limitation

Does anybody know how many total devices Arduino101 can supply? My loop stops working after a while. I have checked everything and I think the reason might be the number of devices connected.

  1. RTC (DS3231)
  2. LoRa shield
  3. ArduCAM (OV2640)
  4. SD card

Thanks for any help!

Supply? Do you mean power?

Arduino is a microcontroller, not a power supply. An Arduino is ok for powering a few LEDs, after that get a proper power supply for your additional boards etc.

If you are powering the Arduino via the power jack, what is the input voltage ?

The Arduino is limited in the current that can be taken from the 5v pin.

The on board regulator can suffer if the wattage rating is exceeded and you over heat the component.

At the moment I use normal USB2 on my laptop to power Arduino101. Those peripherals are just connected directly to Arduino101. They are supposed to be connected forever while Arduino is powered by batteries. I have a software loop stop problem that looks to have no software-based reason.

If you don't think it's a code problem, why post in the Programming section :wink:

It never hurts if extra eyes have a look at your code.

Thanks anyway!

You are trying to draw too much current from the Arduino Vcc, especially the radio. See reply #1.

jremington:
You are trying to draw too much current from the Arduino Vcc, especially the radio. See reply #1.

This might be right.
Theoretically, Arduino101's 3.3 V regulator can deliver 1500 mA. My connected peripherals consume 290 mA maximum. In addition to internal usage of the 3.3 V line, there is still room to power more devices though!

Utter nonsense.

OP continued here: Arduino stops - Interfacing w/ Software on the Computer - Arduino Forum.

So please don't waste your time on this one.

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