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Software
pimoco software is made available under GNU General Public License v3.
Pimoco was developed and tested on a Raspberry Pi 4 running 32-bit Raspberry Pi OS. Here's how to get started.
Install the Indi driver development environment and Nova library with sudo apt-get install libindi-dev libnova-dev.
The WiringPi binaries in Raspbian currently don't support the Pi4B. To remediate this, git clone [email protected]:WiringPi/WiringPi.git && cd WiringPi && ./build. This will prompt for your sudo password for installing the rebuilt binaries.
Clone the pimoco repository with git clone https://github.com/mlnoga/pimoco, change into the directory with cd pimoco and build with make install. You will be prompted for a root password to install.
Besides the pimoco Indi drivers, this also installs a custom device tree overlay for SPI port 0 with 4 client select lines. Edit the boot configuration with sudo nano /boot/config.txt like this, then restart the Pi for the changes to take effect:
dtparam=spi=off # Deactivate standard SPI0 with client select lines 0,1
dtoverlay=spi0-4cs # Activate custom SPI0 with 4 client select lines
Open KStars, open Ekos and add a hardware profile for your new pimoco devices.
For GPS, first get the serial port working. Open sudo raspi-config, go to the interfaces section, and enable the serial port but disable the serial console. Reboot. Set the speed with stty -F /dev/ttyS0 9600. Verify you are getting some data with minicom -b -D /dev/ttyS0.
Then stop virtualgps, which comes preinstalled on Astroberry. sudo systemctl disable virtualgps and sudo systemctl stop virtualgps.
Finally get the gps daemon in shape. On Astroberry, the programs are preinstalled. If they are missing, do sudo apt-get install gpsd gpsd-clients. Edit /etc/default/gpsd and set DEVICES="/dev/ttyS0. Restart gpsd with sudo /etc/init.d/gpsd restart. Check everything works with cgps.