Added new example for display boards equipped with seven (instead of three) buttons. I've successfully tested this sketch with JNFD650.DVB168C2.VER1.2 2018/01/25 display board which I've got from a DVB set-top box based on AiP650EO ic (I've also tested the other examples with a display board based on FD650B ic but buttons didn't work).
TM1650_example03.ino maps the seven buttons using the following hexadecimal codes:
| Button | Label | Hex code |
|---|---|---|
| Button1 | CH+ | 0x4F |
| Button2 | CH- | 0x47 |
| Button3 | MENU | 0x5F |
| Button4 | VOL- | 0x67 |
| Button5 | VOL+ | 0x6F |
| Button6 | OK | 0x57 |
| Button7 | STB | 0x77 |
Warning Unlike what is shown into FD650 and AiP650 schematics, the SCL and SDA pins are swapped. So, if ICs have CLK on pin 2 and DAT on pin 3, the JST connector will has CLK on pin 4 and DAT on pin 5. So, don't trust the datasheets and make the connections (to an Arduino UNO, for example) as following, if you use I2C bus:
JST pin # JST pin label Arduino pin 1 VCC 5V 2 IR usually, 11 (or whatever you choose for a sketch) 3 GND GND 4 CLK A5 (SCL) 5 DAT A4 (SDA) to make display and buttons working.
7 segment display driver for JY-MCU module based on TM1650 chip Copyright (c) 2015 Anatoli Arkhipenko 2018 Alexey Voloshin [email protected]
Changelog: v1.0.0: 2015-02-24 - Initial release
v1.0.1:
2015-04-27 - Added support of program memery (PROGMEM) to store the ASCII to Segment Code table
v1.0.2
2015-08-08 - Added check if panel is connected during init. All calls will be disabled is panel was not connected during init.
v1.1.0:
2015-12-20 - Code clean up. Moved to a single header file. Added Gradual brightness method
v1.2.0:
2018-09-04 - Added buttons support
v1.3.0:
2021-06-29 - Fix method getButtons and modification of example02