What is it?

4x20 LCD display which receives input from a one-wire bus.

Why did you make it?

So I could easily display my opi temperature/humidity cables, and other sensors on my one-wire bus.

What makes it special?

One-Wire LCD displays are fairly difficult to find. When you are debugging or using one-wire devices it is often handy to have a way to display the actual data. Although this device doesn't read one-wire sensors you can send characters to its one-wire address and see the data you are interested in.

Configuration: This is a 3.3V (5V tolerant) display and it will not run on parasite power, so a separate power supply needs to be supplied, in addition to the one-wire and ground wire.