Hello Philipp,
the Estlcam hardware designs are open - here for example are the schematics for the terminal adapter: https://www.estlcam.de/downloads/KA_Schematic.pdf
If anyone wants to manufacture and sell Estlcam compatible hardware I’m actually quite happy about it as I’m more the software guy and don’t sell hardware outside Germany anyways (bureaucratic reasons and lack of time).
A wireless version is something that is in principle already possible:
- Estlcam uses a virtual COM port for serial communication.
- It does not care if this COM port is tunneled through USB, LAN, WLAN, Bluetooth or whatever.
- It just needs to be “transparent” and behave like a real, legacy hardware COM port, keep latencies within a reasonable range and support a speed of 1MBaud.
- As far as I know ESP8266 modules in combination with ESPLink firmware are able to do this, so replacing the FT230XS in my base design with something like this should do the trick.
However: I’m very low on spare time. Nice if someone develops something like this and in theory it should be possible without any input or changes from my side, but this is also the catch: I won’t be able to spend much time helping with projects like this.
Edit: the most simple way for proof of concept without spending time and money for hardware designs is to use an Arduino Nano or UNO, remove its FT232 and instead hook the Rx and Tx lines up to the wireless module.
Christian