Hi. I am using an ATTiny841. I can get an IR LED on the PB2 (TOCC07) pin to turn on and off...so doesn't appear to be a hardware issue. I need to modulate the IR LED at ~38KHz so decided to use timer 1 in CTC mode and toggle the PB2 pin (which is to a transistors base through a resistor). When I…

Timer1...can't enable/disable.

MarkT October 20, 2017, 10:59am 13

CR2032 droop above a few of mA, 5mA is perhaps pushing it, 15mA is way too much.

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