Hi, currently I am working on a project where I reuse an old IR sensor. But the IR sensor is working on 5V and gives a 5V @200mA as signal. When something is detected the voltage drops to 0.5V.
For the Pico an input voltage of 3.3V is needed.
I googled for methods to get the correct input for the Pico but without a clear answer. I tried a voltage divider by 1kOhm and 2kOhm but the voltage drops very low. Reasonable with only 0,2A.
Can you give me advice how to do this? And explain why?
Thanks in advance,
Gabo
For the Pico an input voltage of 3.3V is needed.
I googled for methods to get the correct input for the Pico but without a clear answer. I tried a voltage divider by 1kOhm and 2kOhm but the voltage drops very low. Reasonable with only 0,2A.
Can you give me advice how to do this? And explain why?
Thanks in advance,
Gabo