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VF60-ESP8266
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Minimalistic WiFi driver for VF60 displays
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kosma 961d4ac5f5 initial commit 2022-11-25 13:57:00 +01:00
README.md initial commit 2022-11-25 13:57:00 +01:00
VF60-ESP8266.ino initial commit 2022-11-25 13:57:00 +01:00

README.md

VF60 WiFi Driver

Minimalistic WiFi driver software for VF60.

Connection

Use the RS-232 port, as documented here. Note that the connector on the display is RS232 voltage levels - to connect an ESP8266 you have two options:

  1. Use a level shifter like MAX3232.
  2. Disassemble the display and remove the internal level shifter, then connect the ESP8266 directly to the level shifter pads on the PCB.

Configuration

Change the SSID and password at the beginning of the file. Flash using Arduino IDE.

Usage

  • http://<display IP>/display?line1=...&line2=... - sets display content
  • http://<display IP>/brightness?brightness=0..5 - sets display brightness

Language support

On the HTTP side, use UTF-8.

On the display side, the text is converted to CP-852 (Polish codepage) as that's the author's native language. To add support for more languages:

  1. Add and use a function like UTF8toCP852() but supporting a different codepage.
  2. Add and use a function line codepage_852() but switching the display to a different codepage. To find the correct invocation, use trial and error, trying different values instead of \x07.

Pull requests are welcome to add more language support; I won't do it because I'm lazy.

TODO

  • Show the display's IP address upon startup.
  • Add more languages.