Tagged Questions

0
votes
2answers
130 views

5v output to 3.3v?

I have a microcontroller and a Raspberry Pi, both running off of the same 5v supply, in parallel. The microcontroller has 4 5v output pins and the other is a Raspberry Pi, that can only accept inputs ...
3
votes
1answer
312 views

Measuring almost 1 volt between Raspberry Pi input pin and ground, why?

I'm trying to use a switch to to provide input to software running on the Raspberry Pi. I have software running right now that continually reads the input pin and prints the result. Problem is, even ...
3
votes
3answers
207 views

Voltage regulator 'hiccups' when gate pin of MOSFET is touched

I've been struggling with the following circuit which includes a Raspberry Pi: That's a 5V voltage regulator (with protective capacitors), and a DC motor over on the right, and an IRF510 N-channel ...
3
votes
3answers
1k views

Using a 5V LCD screen from a 3.3V Raspberry Pi GPIO pin

I have an LCD screen which expects power from a 5V line, but I want to hook it up to my Raspberry Pi's GPIO pins which only supply 3.3V. What equipment do I need to increase the voltage from 3.3V to ...