Timeline for How to run 50 IR LEDs off an Arduino UNO?
Current License: CC BY-SA 3.0
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| Dec 8, 2016 at 14:46 | comment | added | Edgar Bonet | @Jonas: Looking at the datasheet of the ATmega2560 (p. 356) it would seem it can source up to 800 mA (3 pin groups @ 200 mA per group and 2 groups @ 100 mA). You should check the mapping of the AVR pins to the Arduino pins and make sure you do not exceed any of the group limits. You should also probably use an external power supply, rather than USB, and check that the voltage regulator does not get too hot. | |
| Dec 8, 2016 at 14:21 | comment | added | Jonas | @Edgar Bonet I'm just curious, would an Arduino Mega be able to drive each of my 50 IR LEDs individually, Since it has 50 pins? | |
| Dec 7, 2016 at 20:43 | comment | added | James Waldby - jwpat7 | Re “drive all of those LEDs from a beefy transistor, like a power MOSFET or a Darlington”, using an inexpensive Arduino-compatible motor-driver board or shield would also work, although some of them might be challenged when trying to switch at IR data rates | |
| Dec 7, 2016 at 14:10 | history | answered | Edgar Bonet | CC BY-SA 3.0 |