This chip key display module features a combination of eight 7-segment displays, eight red LEDs, and eight push-buttons. Making it ideally suited for making simple user interfaces. All of the LEDs and buttons are driven and/or read by a TM1638 LED controller IC. This driver chip uses a simple 3-wire serial interface to communicate with your Arduino® compatible board.
Features:

1. combination of eight 7-segment displays (with decimal point), eight red LEDs, and eight pushbuttons
2. all LEDs, 7-segment displays and pushbuttons can be controlled and read using only 3 GPIO pins

Specifications:

1. driver chip: TM1638 LED controller
2. supply voltage: 5 V
3. interface: simple 3-wire serial
4. number of LEDs: 8
5. number of 7-segment displays: 8 (with decimal point)
6. number of pushbuttons: 8
7. weight: 28 g
8. dimensions (W x L x H): 76,2 x 50,2 x 10,6 mm

manual_wpm461.pdf

wpm461_example_code.zip

ce_rohs_open.pdf