Hey, I'm in the process to test using the Blue Dot app with the ROV, yet I'm believe I'm having some connectivity issues in my setup. I'm having some trouble using the android app to connect to the python scripts on the raspberry pi. I finished the assembly of the blue dot rov model C v1.1, I was able to plug in the LiPo battery and everything boots up as expected (I hope?). On the raspberry pi's end-- I can confirm with a ps aux | grep python command that there are python scripts running in startup (RPiCamServer,TelemetryServer,ControlServer), yet when I bring up the Blue Dot app on my android phone I get the "Don't Panic! Make sure your ROV is connected and restart the app.". However, I do note that it displays Cell Voltage and the camera tilt value is changing every now and then (the servo motor once in a while will tilt the camera mount forward a bit). I can't seem to move any of the motors nor see the camera feed from the raspberry pi. Any insight?
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Android App not fully connecting to Archimedes- I can see Cell Voltage, but nothing else.
Android App not fully connecting to Archimedes- I can see Cell Voltage, but nothing else.
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Hey Luis! A couple of ideas. I’m sure you noticed this, but I just want to make sure that you’re clicking the “unlock camera” and “arm motors” buttons before trying to move them. If you are, then maybe we can try to run the ControlServer script in a python environment in raspberry pi end. To do this, open up the crontab (sudo crontab -e) and scroll down to the line that says “@reboot python3 /home/pi/Archimedes2/ControlServer.py” Comment that line out. Restart the Raspberry Pi, and open up a terminal. Then open up a python environment, and run ControlServer.py manually. While it’s running, open your android device. Make sure you quit the blue dot app (not just exit, the app needs to be stopped). Then, connect your Android device to the sub’s WiFi signal. Open up the app, flip the “arm motors” button, and try moving them again. If the app is connecting to the python socket, the raspberry pi terminal should print throttle and camera tilt values, which should change as you move the controls. Something like “50, 30, -30, 80” If you are seeing these, we’ve ruled out software issues, and I’d recommend double checking the motor driver wires are connected to the correct pins. Camera feed: First, check that the red light on the camera turns on after the ROV boots up. It should stay on. If it doesn’t, your ribbon cable might be in backwards, or might not be fully connected. If the red light is on, then the ROV is capturing video. In that case, open up your android’s web browser and visiting this address: http://raspberrypi:8000/stream.mjpg You should see the video feed at that address, which should confirm the ROV is working properly. Also, what model android device and what version is it running? I’ll make sure I look into this on my end. I hope this helps! -Costas