- TM1637 IC
- The TM1637 is a seven segment LED driver that communicates serially and can control up to six digits.
- Aside from power pins, it only requires a data pin and a clock pin.
- The TM1637 supports only common anode displays and that anode pin connects to the GRIDX pins.
- The IC is also able to read eight keyboard pins and connects to the KSX pins.