7 segment display

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Introduction

The 7 segment plugin support two different chip types, the TM1637 (4 digits) and the MAX7219/21 (8 digits).

7D-display-001.jpg

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

7D-display-002.jpg

4 digit display

7D-display-004.jpg

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

7segment 001.PNG

If you use the 4 digit chip (TM1637) you only need two gpios.

MAX7219

7segment 002.PNG

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