Driver Chip: MAX 7219, Input Voltage: 3.7 to 5.3 V, Input Current: 320 mA, Display Dimensions: 32 x 32 x 6 (L x W x H) mm, PCB Dimensions: 128×32 (L x W) mm
The module is based on Nokia 5110 which is a basic graphic LCD screen for lots of applications.
It is suitable for Arduino motherboard to display real time clock, CPU memory, temperature and humidity,
and its backlight can help you to read the screen clearly in the dark environment.