This Arduino sketch initialises and tests a 10-digit 16-segment LCD connected to a TM1622 controller chip. It writes some test patterns to the display, including hex digits 0-9 and A-F.
The display module that I used has a blue LED backlight and is an eletechsup DM8BA10
| Arduino | Signal | TM1622 |
|---|---|---|
| D10 | /CS | CS |
| D13 | /WR | WR |
| D11 | DATA | DATA |
| GND | GND | GND |
| +5V | Vdd | (5V)VDD |
| +5V | Vdd | LED+ |