decode() and then I split all the values via. The data is really a mess when it gets in the monitor, so I read line per line in python via ser.readline() which reads the lines, but they still need to be decoded. First of all, I connect to the GPS module via Serial on a baudrate of 9600. But here it is, some more explaining about it. The python itself doesn't need alot of explanation, since it tells itself. These routes are recognizable by the starting of "/ajax/.". These aren't seen by the user, but still used by the system. The third section has the AJAX request routes. This contains the links for the main application which are used by the user.
The second section contains the main routing. The first section contains the app request settings and the processor settings (to set gobal variables). I used Flask as framework to serve the HTML and CSS content on the pages. Here, I'll explain some of the code, why I did it and how it works. If you just want to do a quick check to see what data is coming out of the GPS, you can enter the following command, following by CTRL+C to quit: Once your Raspberry Pi 3 has rebooted you should now have access to the serial console via the GPIO header at 9600 baud. Sudo apt-get update sudo apt-get upgrade sudo reboot You need to update the operating system with the latest patches with: Now edit /lib/systemd/system/rver and replace ttyAMA0 with ttyS0. If you want to disable the built in bluetooth you need to stop hciattach trying to use the modem via uart0 which will disable the relevant systemd service. Make sure it is one line and there is no enter at the end of this file.Įxit and save your changes If you have edited the cmdline.txt and config.txt files on your desktop put the SD card back in your Raspberry Pi 3 and boot to either a network SSH session or desktop and run the following in a shell window. Then use Ctrl+O to save changes and use Ctrl+X to exit.ĭwc_otg.lpm_enable=0 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait You need to edit the /boot/config.txt file, open the file either on your desktop computer or using the Raspberry Pi via SSHĭtparam=spi=on dtoverlay=pi3-disable-bt-overlay core_freq=250 enable_uart=1 force_turbo=1Īlso add these lines for the LCD (if you are using the same one as I do) It will depend on which module you use, but mine had an installation required.
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