Hi there! I'm going to send messages over an (IR) LED. The bits are 600 or 1200us long. This switching will be done in the Arduino, no problem. But between the Arduino and the LED (the MOSFET driving it, respectively) I want to put a 555 timer circuit (there will be lots of interrupts, and I always…

Switching 555 Timer on and off

stowite May 15, 2014, 8:48am 4

Hold the 555 in reset using one of the Arduino digital output pins when you don't want it to oscillate. Check the 555 datasheet for details.

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