7 segment display
Contents
Introduction
The 7 segment plugin support two different chip types, the TM1637 (4 digits) and the MAX7219/21 (8 digits).
Hardware
ESP TM1637 GPIO <--> CLK GPIO <--> DIO
ESP MAX7219 GPIO <--> DIN GPIO <--> CLK GPIO <--> CS
Power chip 3.3V* <--> VCC GND <--> GND *Many 7 segment displays state that they need 5V to operate but we have successfully powered them using 3.3V.
8 digit display
4 digit display
ESP Easy
Use the device tab on the ESP Easy web interface and create a new task by editing one of the available tasks. Select "Display - 7 segment". Available in testing at the moment. Settings are as follows.
TM1637
If you use the 4 digit chip (TM1637) you only need two gpios.
MAX7219
If you use the 8 digit chip (MAX7219) you need three gpios.
Commands
Command | Value | Extra information |
---|---|---|
play,<value> | 1...3000 | Plays the n-th track 1...3000 on SD-card in root folder. The track number is the physical order - not the order displayed in file explorer! (The track will be played once and then stopped.) |
stop | - | Stops actual playing sound. |
vol,<value> | 1...30 | Set volume level. |
eq,<value> | 0...5 | Set the equalizer type (IS NOT SUPPORTED BY YX5300) 0=Normal 1=Pop 2=Rock 3=Jazz 4=Classic 5=Base |