Display TM-1638

JIAYUAN ELECTRONIC

http://jy-mcu.taobao.com/

JY-MCU’s seven-segment/LED display module. A relatively large board with 8 push-buttons, 8 LEDs and 8 seven-segment displays. This thing surprised me with a model number printed on it: JY-LKM1638. A nifty library is availablehere. Will make a nice general purpose numeric/status display.

http://code.google.com/p/tm1638-library/

http://code.google.com/p/tm1638-library/wiki/Reference

This is a board with an 8 digit LED display, 8 LEDs, and 8 buttons. The board has one TM1638 controller which has a SPI interface. Up to 6 boards can be daisy-chained. A link to an Arduino library is provided, but no other documentation.

JY-LKM1638 sketch

http://www.dealextreme.com/p/8x-digital-tube-8x-key-8x-double-color-led-module-81873

- Integrates buttons, LED & digital tube

- Only requires three IO ports to be driven

- By day of the module's TM1638 chip micro-8 8-segment LED display and 8 buttons and 8 test Two-color LED control, IO savings serial communication interface, 8-level brightness adjustment (LED and adjust the brightness of a unified digital), and scan button scans showed no MCU intervention, MCU only needs to read or send display data to register RAM chips can save MCU resources.

- Comes with connection cable (20cm length)

Item: 8X Digital Tube + 8X Key + 8X Double Color LED Module

Dimensions: 4.02 in x 1.97 in x 0.39 in (10.2 cm x 5.0 cm x 1.0 cm)

Weight: 1.98 oz (56 g)