How to convert 3.3V from Raspberry Pi to usein a Remote Control Car which needs 3V

raspberry piremote control

I need a 3V ( 2 1.5V batteries) for a RC car transmitter and I have a Raspberry Pi Model B giving out 3.3V. How can I convert the 3.3V from Raspberry Pi to use it in my RC car Transmitter ?
Basically I'm trying to run the RC car with the Raspberry Pi GPIO pins 1, 3V3OUT, and Pin 39 GND.

Best Answer

I think the additional 0.3V won't bite.

Should you really be concerned about this you can get a Schottky rectifier like 1N5819 to drop the voltage by 0.2V.

By the way 1N5819 are so cheap that you can get boxes of thousand for a few bucks - you can get a few hundred of those and start replacing 1N4001's in your circuits with those, and in some circuitry its lower forward drop means better efficiency.