peter's tinkering

Have you ever come across an old paintball gun while cleaning your basement and think “I wonder what the true efficiency of these things is ...

I made a little gadget to observe the water height in my water well over a period of days or weeks. I'd previously found the height by t...

Have a water well? Want to figure out how deep the water level is? So did I, so I made an overly complicated contraption to do so. But befor...

This is a quick discussion of how to feed a 4-20 mA signal into an Arduino. Looking for 4-20 mA output from an Arduino? See here. I bought...

I was bored, so I made a home-built signal to pressure transducer. You can use this sort of thing to control the position of a pneumatically...

Looking for a low cost pressure transducer, I came across these  mini digital tire pressure gauges . I thought there might be some signal on...

Just look at this! The curved traces are "artistic" or something That's my first attempt at having a printed circuit boa...