ESP8266 Bridge to transfer WiFi/MQTT messages to RS232/VISCA.
I use Cisco PrecisionHD (TTC8-02) cameras for development. Might work with other cameras.
Here are some examples how to use the MQTT interface:
| Topic | example JSON | Outcome |
|---|---|---|
| visca/command/camera/moveto | {x: 400, y: 212, z: 0, focus: 420, cam: 0} |
Camera 0 moves to 400, 212, zooms all the way out, sets the focus to manual |
| visca/command/camera/settings | {backlight: true, flip: true, mirror: true, mmdetect: true} |
Camera 0 turns on backlight compensation, flips and mirrors the image and enables EMFDP |
| visca/command/camera/picture | {wb: 7, iris: -1, cam: 1} |
Camera 1 sets whitebalance to 7 and enables auto exposure |
| visca/command/camera/blinkenlights | {led: 1, mode: 2, cam: 0} |
Camera 0 turns on LED 1 in blinking mode |
| visca/command/system/getConfig | {} |
Returns the current MQTT configuration |
| visca/command/system/updateConfig | {"mqtt_server": "127.0.0.1", "mqtt_port": "1883", "mqtt_user": "test", "mqtt_password": "", "mqtt_basetopic": "VISCA"} |
Update settings within the stored config.json on the microcontroller |
| visca/command/system/resetConfig | {"reset": true} |
Factory defaults |
- D1 mini (any other ESP8266 will work. Haven't tested ESP32 boards yet)
- max3232 breakout board (The DB9 version will also work)
Somewhat important note: Do not use software serial for VISCA. Doesn't work. Makes you bang your head against the wall.
Obsolete was probably a wiring issue. Software serial is working fine as well
If you are looking for the rest of the documentation: this is the documentation so far. It ends here. Still a work in progress.