I’ve stopped working on the temperature display for now. There are some personal issues I have to deal with this week but work will continue mid next week.

I ran into some interesting challenges with the design of the circuit, lets just say I was rushed with the making of the main circuit and now some errors made their way on to it. They are more unforeseen issues than errors but anything I missed counts as an error . There are some easy workarounds, and others not so easy, and it would look like some of the errors actually made for a better end result. In the spirit of learning this is really a nice project. I did not realize that the temperature chip (TC77 from microchip) uses a chip select on low and the circuit is designed in a manner that this issue causes a short circuit between the micro controller and the temperature chip. The solution is to create a logic inverter and I found a nice way to make one with a single transistor.

This is all I can share for now, keep an eye here toward the end of next week so you don’t miss the release of this project!

I created a new page for the website where you can look at things I’m working on. I uploaded two pictures of a circuit I’m building on the Preview page. It will eventually show the temperature of the room on the 7 segment displays.