46 lines
1.3 KiB
Markdown
46 lines
1.3 KiB
Markdown
# Pi setup
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Flash an image using the [Raspberry Pi imager](https://www.raspberrypi.com/software/), I picked the Raspberry Pi OS Lite (based on debian trixie) and set up WiFi & SSH from the Customisation settings.
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## First commands
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```sh
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sudo raspi-config # Then select: Interface Options -> SPI -> Enable
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sudo apt update && sudo apt upgrade
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sudo apt install -y python3-pip python3-pil python3-smbus python3-numba
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sudo systemctl mask swap.target
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sudo systemctl disable --now bluetooth
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sudo nmcli c modify <your-connection> 802-11-wireless.powersave 2
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```
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Reduce SD card writes by setting `Storage=volatile` in `/etc/systemd/journald.conf`.
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## Deploying
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Ensure [.env](src/.env) has the correct paths and then run:
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`./sync.sh`
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> That rsyncs `src/` over.
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## Setting up cron
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In `crontab -e`, add:
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```
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*/15 * * * * cd ~/frame && python3 display.py -o 90 >> ~/frame.log 2>&1
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```
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### Optionally, to monitor the wifi connection:
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In `sudo crontab -e`, add:
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```
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@reboot /usr/sbin/iw wlan0 set power_save off*/5 * * * * /home/<user>/frame/wifi-check.sh >> /home/<user>/wifi.log 2>&1
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```
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## Hardware notes
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The driver in `src/lib/waveshare_epd/` is adapted from Waveshare's [PhotoPainter](https://www.waveshare.com/wiki/PhotoPainter) project. That wikipage has the wiring, init sequence, and 6-colour palette docs.
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