2025-07-20 18:37:17 +01:00
|
|
|
# hortitel
|
2025-07-20 18:49:20 +01:00
|
|
|
Allotment Telemetry Project: Horti(culture)Tel(emetry)
|
|
|
|
|
|
|
|
|
|
Project Goal: Gather various sensor data from our allotment so we can observe present data and compare to past measurements.
|
|
|
|
|
|
|
|
|
|
This is initially using the Melopero Perpetuo LoRa boards as documented in their project here:
|
|
|
|
|
|
|
|
|
|
The code is derived from their initial examples.
|
|
|
|
|
|
|
|
|
|
At present this reads some data from the 'sender' board and sends it via the
|
|
|
|
|
LoRaEMB protocol to the 'receiver board. The data sent is the Pico's internal
|
|
|
|
|
temperature sensor as well as voltage readings from the battery circuit and the
|
|
|
|
|
board input voltage (i.e. USB or solar). Note that the voltage measurement uses
|
|
|
|
|
an external voltage divider circuit, the resistances of this are essentially
|
|
|
|
|
documented in the code.
|
|
|
|
|
|
|
|
|
|
The data is sent and received by serialisation and deserialisation of some
|
|
|
|
|
structs. It could well be neater to use a text format for, but I'm a bit
|
|
|
|
|
old-school like this.
|
|
|
|
|
|
|
|
|
|
Eventually I plan to build this out by adding more sensors, a proper enclosure,
|
|
|
|
|
and an external solar/battery power-source.
|
|
|
|
|
|
|
|
|
|
The code is in no way warranted to be fit for any purpose at all. In fact it is
|
|
|
|
|
almost certainly "buggy as hell". You have been warned.
|
