It work with my old rover: FPV Rover but i work on a new rover with 8 wheels and suspension.
I call it Squid Rover.
Below is a work log and some explanations of features of my control station.
Solder together metal boxes for the different parts, this is the wifi card.
Thought it would shield a little, but is probably completely unnecessary ... but fun to build...
I use the WiFi when i develop the code. Steelsquid Kiss OS that i use will automatically upload changes to the Raspberry Pi in the control station via ssh.
The transceiver i use to send and receive command to and from the rover.
It is a HM-TRLR-S LoRa transceiver. It has pretty long range 5km LOS in only 100mW.
But it is slow, when only sending (not wait for answer) a command takes about 80ms to send.
You can speed it up by changing the settings for the LoRa, but then the range will suffer.
I found a setting i think is good, about 1km range with trees and houses in the way...
It is easy to use just send a serial TTL signal on one side and it will apper on the other....
I send a simple package like this <Request byte>|<command>|<parameter>|<parameter>...<new line>
<Response OK byte>|<parameter>|<parameter>...<new line>
<Response ERROR byte>|<error message><new line>
Client can also send broadcast:
<Broadcast byte>|<command>|<parameter>|<parameter>...<new line>
Server just read the request and to what it tell, but do not answer back with any response...
I can switch the audio and video from the internal receiver to a external and also connect a external monitor (goggles).
I do not use the buck converter you see in the first picture, it resulted a lot of noise in the picture, and it did not help with an LC filter.
The monitor and final WiFi and transceiver.
The Raspberry Pi do not have any ADC so i use a BYVAC P012-I2C to read joystick location and battery voltage.
I also need more GPIOs, for that i use 2 MCP23017.
The painted and strengthened briefcase.
The wiring on the pack of the panel :-)
A detachable bag for equipment on the lid of the case.
Protection for my IBcrazy Airblade antenna.
A simple drainpipes stop part...
The "finished" case with equipment.
Here is the "finished" case.
Added a DVR and a small keyboard.
The keyboard i will use to send text to the rover and a text to speech engine on the rover speaks it :-)
I also made a Moxon antenna.
If you write a text on the keyboard and press enter the text will speak on the rover.
The LCD show a simple webpage where you can write the text and when you press enter it is handled by Steelsquid Kiss OS python webserver that send it to the rover.
I Use eSpeak as text to speech on the rover.