TTGO ESP32 PocSag receiver

Software

  • ESP32 PocSag Software V0.50  Binary program file to be upload to TTGO.


    • Donations are welcome ...

    Details

    This firmware is designed for the LiLyGO LoRa32 T3 V1.6.1 433MHz device.
    It allows the reception and decoding of PocSag frames on the frequency range covered by the LiLyGO platform.
    Initial configuration is done via the USB interface and a 'terminal' application such as 'putty'.

    A wifi connection can be configured. This allows to retrieve the date and time via NNTP but also to connect via 'telnet' to the device.
    Data is transmitted on the active link - serial or telnet.

    Usage

    This firmware makes use of the remarkable Radiolib library (V6.0.0) developped by Jan Gromes and its pager example code(https://jgromes.github.io/RadioLib/).

    Wifi setup is made through serial port at 9600bds using the following commands:
    - 1..9      Selects running frequency in the internal table
    - S         Wifi SSID
    - K         Wifi KEY
    - REBOOT

    If not done, 'Net: not configured' will be displayed and PocSag decoding starts.

    After REBOOT, the device will search for Wifi and will try to connect it.
    Else date and time will be retrieved on 'pool.ntp.org' and a telnet server starts.
    If no wifi is found or if connect fails, PocSag decoding starts.

    The frequency table is:
    -1   466.025     1200
    -2   466.050     1200
    -3   466.075     1200
    -4   466.175     1200
    -5   466.20625 1200
    -6   466.23125 1200
    -7   439.9875   1200
    -8   173.5125   1200
    -9   173.550     512

    Telnet commands are:
    r        start message output
    s        stop message output
    f        show frequency table
    1..9    set PocSAG frequency
    a        2400bds
    b        1200bds
    c         512bds

    Pictures

    Startup displayListening display

    Configuration display

    Serial configuration display
    Telnet configuration display

    First revision: 2023/04/06
    Last revision: 2025/01/28