TM1638 is a LED (light-emitting diode display) driver control circuit with a keyboard scan interface, the internal set Into a MCU digital interface, data latch, LED high-voltage driver, keyboard scann

Interface Protection: TVS tube protection, USB self-recovery protection

Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step

Use STM8S103F3P6 as the master IC

Supports CAN V2.0B specification, the communication speed 1Mb/s.

3.3V and 5V dual power output

Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays.

Dimensions: L42mm*W16mm*H5mm

Conversion level range: 1.8V-6V

Power supply options: external power supply and USB power

10K Logarithmic Slide Potentiometer

Operating voltage: single DC10 ~ 30V, 24V recommended voltage