I decided to make a new version of the board that fits on a single square inch to enter this project to the Hackaday square inch contest.
Since the old form factor was mainly influenced by the 7 segment display, I decided to switch to a 0.96” OLED Display that fits the form factor of a square inch board quite nicely.
The board is a complete redesign, however the schematic is mostly the same. I only needed to add 2 10kΩ pull ups to the I2C line of the display.
Continue Reading …