2019-03-22, 05:56 AM
I've tried enabling and disabling the UART, back and forth several times. I can get the minicom loopback to work using "sudo minicom -D /dev/ttyS0" when I have the UART enabled. I originally tried to use an optocoupler circuit with PC817's, but now I'm learning that they may not be fast enough. The last tries were using just logic level converters to try to simplify things. I thought it might be just the NANO since it's had a hard life, but the results were the same with the UNO. I had to comment out the "fuses" lines in the motor.ino sketch to get the UNO to work. That's just to keep experimenting till Amazon delivers some more NANOs. I've been trying it assigning /dev/ttySO to Pypilot or KPLEX or None in the Openplotter screen with equal results.
I've just found the Openplotter Serial Output thread with the advice from e-sailing:
If you disable bluetooth you can use the serial port on the rpi 3 in the same way as on rpi 2.
edit the file /boot/config.txt
sudo nano /boot/config.txt
insert at the end of the file
dtoverlay=pi3-disable-bt
stop bluetooth serial
sudo systemctl disable hciuart
reboot
so maybe I'll try that next.
I've got the setup apart working on hardwiring the MPU, the voltage dividers for rudder sense, voltage sense, and temperatures at the moment, to try and get rid of breadboard and jumper wire issues.
I'm sure it's obvious that I'm running at the very edge of my meager knowledge of electronics, Raspian and the Arduino IDE, but it's been a great learning experience.
Thanks.
I've just found the Openplotter Serial Output thread with the advice from e-sailing:
If you disable bluetooth you can use the serial port on the rpi 3 in the same way as on rpi 2.
edit the file /boot/config.txt
sudo nano /boot/config.txt
insert at the end of the file
dtoverlay=pi3-disable-bt
stop bluetooth serial
sudo systemctl disable hciuart
reboot
so maybe I'll try that next.
I've got the setup apart working on hardwiring the MPU, the voltage dividers for rudder sense, voltage sense, and temperatures at the moment, to try and get rid of breadboard and jumper wire issues.
I'm sure it's obvious that I'm running at the very edge of my meager knowledge of electronics, Raspian and the Arduino IDE, but it's been a great learning experience.
Thanks.