Micro Maestro TTL at 3.3V


Any information on whether or not this wonderful little board is 3.3V (serial communication only) friendly?

(Ben if you end up replying to this you may sense a theme)

Hi Mitch, I noticed the theme even though I am not Ben :slight_smile:

Unfortunately, the Maestro’s RX and RST lines (the only digital inputs on the board) need a signal of at least 0.8 times VCC, which is normally 5V. So it will probably not work with a 3.3V signal.


Note that the RST (reset) line of the Micro Maestro is optional; you don’t need to to connect it. Also, it has a pull-up resistor so you would never need to drive it to 5 V.