Schematic, PCB, and Source Code
You, too, can build this project. The Eagle Schematic and PCB files and the AVR Studio project can be downloaded here.
Just a few reminders…
Jumper wires are required to make this project work. I couldn’t route some of the nets because I wanted to make sure that it’s easy for me to design the PCB. I also wanted to make sure that PCB etching would be very easy for everybody. Just check the Eagle files that I provided to determine where to place the jumper wires. The jumper wires are represented by top copper layer in the PCB layout. Also, you may refer to the images below.
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Reversing the 7-segment is a good idea.
I think there is an IC that converts an analog signal into 7-segment data directly but I don’t remember its number, but I think it would be cheaper than a microcontroller
^^^
There is. It is ICL7107CPL
However, it costs 12 dollars compared to ATtiny26L which is just 2 dollars.
Hi, what component did you use for IC1?
Regards
Tom