Search found 3 matches

by wtrout
Mon Feb 22, 2021 11:47 am
Forum: General Discussion Forum
Topic: A new DIY electronic coil tester.
Replies: 339
Views: 411372

Re: A new DIY electronic coil tester.

Here's some more info on the coil tester troutjohn posted. Since we went with the larger display (480x272 pixel), I found the 328's RAM lacking which led to very difficult to troubleshoot issues. I had some SAMD21 based boards sitting around so I started working with them. They have way more RAM, fa...
by wtrout
Thu Dec 17, 2020 9:27 am
Forum: General Discussion Forum
Topic: A new DIY electronic coil tester.
Replies: 339
Views: 411372

Re: A new DIY electronic coil tester.

I made up a schematic using easyEDA. That's a great website to know about. Yesterday I tore into the code/circuit to make some changes to deal with the interference. The I2C display/inputs definitely had greater issues so I've totally removed that and am now just using the SPI OLED and a basic rotar...
by wtrout
Sun Dec 13, 2020 11:08 am
Forum: General Discussion Forum
Topic: A new DIY electronic coil tester.
Replies: 339
Views: 411372

Re: A new DIY electronic coil tester.

Matt, Sorry I never saw that you had a question about the circuit in our coil tester; I didn't have an account here before. I'll draw one up. We're using a character LCD that uses I2C and has a few buttons on it as well. It takes all the irritation out of debouncing and handling inputs; not super ex...