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Results tagged with power
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user 1566
This tag is for questions regarding powering and/or power consumption of Arduino systems.
1
vote
Leonardo (32u4): ways to brick it programmatically
What would happen is this:
Power on, boot loader starts, USB device enumerated on PC. …
- 2,925
21
votes
Accepted
Arduino powering from 9V battery
Power consumption
The Arduino boards use a fair bit of power compared to other embedded systems with similar functionality. … Duncan comments that this nearly doubles the quiescent power draw from 9V as well as the power needed for every mA of 5V, since 4/9ths of the power gets wasted as heat by the voltage regulator. …
- 2,925
4
votes
Accepted
Sleep mode and months of operation on small battery
Have a read through the Jeelabs blog which documents the author's very successful attempt at making a very low power wireless sensor node that can run for months off coin cells. … Unless you do something about the power supply on a normal Arduino board you won't be able to extend the battery life by much at all. …
- 2,925
1
vote
Arduino uno + XBee Shield Not transmitting when under battery power?
Using a multimeter you can confirm your theory by looking for a voltage drop on the power connections to the XBee and into the UNO.
9V batteries don't store much charge, nominally 563mAh according to … Depending on the XBee, power consumption varies. 40mA for a normal XBee (ZigBee), 200mA for pro, and 309mA when transmitting for the new XBee WiFi. …
- 2,925
3
votes
Accepted
Wrong data from DS18B20 temperature sensor after long power off
To confirm there isn't something dodgy going on with the USB power supplied to the board, use a multimeter to monitor the 5V pin of the Arduino. …
- 2,925