Keyestudio 4-digit LED Display Module integrates a 0.36″ 4-Digit 7-Segment Display Common Anode with 12 pins. It uses the driver chip TM1637.
The module has 4 control pins of 2.54mm pitch, which can direct connect to microcontroller with jumper wires.
So it’s very easy to control the matrix without tons of wiring. Available to make microcontroller control the 4-digit LED segment display via signal interface, greatly saving IO pin resource on microcontroller.
The module has two 3mm fixed holes, convenient for mounting on other devices.
If you’ve been eyeing matrix displays but hesitated because of the complexity, this is the solution you’ve been looking for!
Operating voltage: DC 5V
Operating temperature range: -40～+85℃
To Arduino connect the CLK pin to Digital 4, DIO pin to Digital 3, VCC pin to 5V, GNG to ground.