2017-07-24, 10:52 AM
I've installed a SWAB (System Without a Boat), consisting of:
1. A RPi 3 with a Strato Pi UPS HAT and a small lead acid battery on which it runs for a day or so. This runs OpenPlotter, and is to be placed as a central server somewhere safe on my imaginary boat.
2. A WiFi GPS sender, consisting of an Ultimate GPS, an MKR1000 and a LiPo battery. This sends SignalK messages via MQTT to the OpenPlotter broker. Should be placed on the deck to receive GPS clearly.
3. A WiFi Environmental sensor, consisting of a few I2C sensors (pressure, humidity, temperature, light) connected to another MKR1000 with LiPo battery. Like #2, this also sends SK messages via MQTT. This shares much the same codebase as #2. Should end up somewhere in my imaginary cockpit, so that the illumination can be tuned to the available light.
Code and a few pictures are available here: https://bitbucket.org/toQDuj/signalk-gps-nodule
The next project will hopefully realise a waterproof WiFi display using an MKR1000 or ESP32 (the former are hard to find now for some reason) and some e-paper.
/end brag
1. A RPi 3 with a Strato Pi UPS HAT and a small lead acid battery on which it runs for a day or so. This runs OpenPlotter, and is to be placed as a central server somewhere safe on my imaginary boat.
2. A WiFi GPS sender, consisting of an Ultimate GPS, an MKR1000 and a LiPo battery. This sends SignalK messages via MQTT to the OpenPlotter broker. Should be placed on the deck to receive GPS clearly.
3. A WiFi Environmental sensor, consisting of a few I2C sensors (pressure, humidity, temperature, light) connected to another MKR1000 with LiPo battery. Like #2, this also sends SK messages via MQTT. This shares much the same codebase as #2. Should end up somewhere in my imaginary cockpit, so that the illumination can be tuned to the available light.
Code and a few pictures are available here: https://bitbucket.org/toQDuj/signalk-gps-nodule
The next project will hopefully realise a waterproof WiFi display using an MKR1000 or ESP32 (the former are hard to find now for some reason) and some e-paper.
/end brag