https://github.com/headblockhead/unicornsignage

A Go program for running on a raspberry pi that displays scrolling text on demand, and the weather when there is no text.
https://github.com/headblockhead/unicornsignage

go golang mqtt raspberry-pi unicorn-hat-hd

Last synced: about 1 month ago
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A Go program for running on a raspberry pi that displays scrolling text on demand, and the weather when there is no text.

• Host: GitHub
• URL: https://github.com/headblockhead/unicornsignage
• Owner: headblockhead
• Created: 2022-08-09T17:42:07.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-08-13T23:30:28.000Z (over 1 year ago)
• Last Synced: 2024-11-19T15:45:11.583Z (about 2 months ago)
• Topics: go, golang, mqtt, raspberry-pi, unicorn-hat-hd
• Language: Go
• Homepage:
• Size: 547 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# unicornsignage

A Go program for running on a raspberry pi that displays scrolling text on demand, and the weather when there is no text.

Designed for the [Unicorn Hat HD](https://shop.pimoroni.com/products/unicorn-hat-hd?variant=42496126730).

# Installation

First, install raspian onto your pi. Make sure the hostname is ```displaypi```. 

Then, create your own ```creds.json``` in the root of this repository. Format it like in [this example](/credexample.json). 

After that, run the Makefile with ```make firstdeploy```. 

Next, SSH into the rpi. In the rpi, run ```sudo nano /lib/systemd/system/display.service``` and paste the following text:

```

[Unit]

Description=Display device

After=network-online.target

Wants=network-online.target

StartLimitIntervalSec=500

StartLimitBurst=5

[Install]

RequiredBy=multi-user.target

[Service]

Type=simple

User=root

Restart=on-failure

RestartSec=5s

WorkingDirectory=/home/pi

ExecStart=/home/pi/display

```

Finally, reload systemd ```sudo systemctl daemon-reload```, enable the service ```sudo systemctl enable display```, enable SPI and I2C support on the pi ```sudo raspi-config # Interface Options > SPI > Yes > Ok > Interface Options > I2C > Yes > Ok > Finish``` and restart the pi ```sudo reboot```.

Next time you make a change to the program, use ```make deploy``` instead of ```make firstdeploy``` to restart the service.

Enjoy!