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RPi Pico & strawberryAPI powered off-grid weather station

Python 71.22% HTML 9.15% JavaScript 14.46% CSS 5.17%

3d-printing raspberry-pi-pico solar-energy weather-app weather-station humidity-monitoring off-grid raspberry-pi temperature-monitoring electronics

picoweatherstationv2's Introduction

PicoWeatherStationV2

Off-grid, standalone version of PicoWeatherStation powered by strawberryAPI.

Features

Logging temperature & humidity.
Logging battery & pv voltage.
Access to logged data through WiFi hotspot and web app.
Logs visualisation using chart.js.

Setup

clone repo
clone submodules

git submodule update --init --recursive

set HOTSPOT_SSID and HOTSPOT_PASSWORD in config.py
set WEATHER_LOGS_PER_HOUR in config.py (default logging sensors data every 20 minutes).
format sd card (FAT32).
chart.js setup: rpi pico doesn't have enough space for flashing css/js libs, get chart.js from cdns (https://cdn.jsdelivr.net/npm/[email protected]/dist/chart.umd.min.js), then put it on sd card /static/libs/chart.js.
flash RPi Pico.

Wiring

Parts

Part Name	Quantity
Raspberry Pi Pico W	1
DHT20 temperature and humidity sensor	1
DS3231 I2C RTC module	1
MicroSD card	1
SPI MicroSD card reader module	1
Circuit board (70x90mm)	1
Waterproof case	1
Gold pin connectors	?
Connecting wires	?
Cell holder for 2x 18650 battery	1
18650 li-ion battery	2
Step-down Voltage Regulator - 1,0V-17V	1
Step-up converter 5V	1
TP4056 1S 3,7V with protection	1
6V solar panel 165x135x3mm	2
1A fuse with wires	1
3.3V zener diode	2
4.7k resistor	1
1k resistor	1
10k resistor	2
ARK connector raster 5.0mm 2 pin	3
3mm screws and nuts	?
4mm screws and nuts	?

3D printed parts

all models are provided in freecad project files for easier modifications.

Part Name	Quantity
bat_mount	1
case_backplate	1
case_bridge	2
case_m_top	1
case_th_connector	1
pcb_mount	1
pv_b_holder	2
pv_b_s_mount	2
pv_t_mount	1
pv_s_mount	2
pv_t_s_mount	2
th_holder	1
th_holder_b	1
th_holder_mount	1

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