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https://github.com/sacconazzo/gpio-rpi-van-battery-stats
GPIO RPI4 manager for van battery stats
https://github.com/sacconazzo/gpio-rpi-van-battery-stats
adc battery battery-monitor current-sensor gpio gpiozero mcp3008 pigpio rpi rpi4 thermistor-to-digital van voltage-monitor
Last synced: 7 days ago
JSON representation
GPIO RPI4 manager for van battery stats
- Host: GitHub
- URL: https://github.com/sacconazzo/gpio-rpi-van-battery-stats
- Owner: sacconazzo
- License: mit
- Created: 2024-02-25T11:11:30.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2024-04-13T10:26:33.000Z (8 months ago)
- Last Synced: 2024-04-14T00:39:55.313Z (8 months ago)
- Topics: adc, battery, battery-monitor, current-sensor, gpio, gpiozero, mcp3008, pigpio, rpi, rpi4, thermistor-to-digital, van, voltage-monitor
- Language: JavaScript
- Homepage: https://sacconazzo.altervista.org/#battery
- Size: 13.8 MB
- Stars: 1
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: license
Awesome Lists containing this project
README
# GPIO RPI4 manager for van battery stats
## Prerequisites
### Hardware:
- RPI4
- Breadboard and connectors
- Analog Voltage sensor (it is possible to build it by yourself creating a voltage divider with some resistors)
- Analog Current sensor (ACS758 o WCS1700)
- Analog potentiometer
- ADC converter (MCP3008)
- Some leds and resistors (optional)
- Some physical buttons (optional)
### Software
- Pi OS (10 or later)
- MySQL server 8 installed (or docker compose)
- Python3
- NodeJS (12 or later)
- A Web Server where to post the stats data (in this case my own api server, you could comment this part if you want to work locally by directly querying the db)
## Installation
### Hardware
#### Sensors and ADC
#### Leds and buttons
#### Pictures
### Software
- enable serial port interface via `sudo rspi-config`
- clone this repo in your rpi home dir `git clone https://github.com/sacconazzo/gpio-rpi-van-battery-stats.git`
- install dep. with `yarn install` and `sudo pip install -r requirements.txt`
- create mysql server and database (you can use `docker-compose.yaml` in `/db` folder)
- create table `battery-snaps` (you can create it running `yarn db:prepare`)
- configure `.env` file like `.env.example`
- configure a startup script in your RPI (example in `/etc/rc.local`) adding:
```
cd /home/pi/gpio-rpi-van-battery-stats
sleep 30
sudo yarn collect &
sudo yarn manager &
```
## Outputs
Developed to provide updated data in 4 different stacks:
- Publish to external REST/HTTP
- Publish to MQTT
- Expose with a REST/HTTP
- Send with Socket.IO
### Output managed example
#### Realtime data
```
{
"dayWeek": [
{
"day": "2024-02-25",
"bmV": 13.26,
"bmVmin": 11.91,
"bmVmax": 13.38,
"b1V": 13.26,
"b1Vmin": 11.9,
"b1Vmax": 13.35,
"b2V": 13.26,
"b2Vmin": 11.9,
"b2Vmax": 13.36,
"b1Ah": 7.2,
"b2Ah": 2.7,
"temp": 24,
"tempMin": 23,
"tempMax": 35
},
{
"day": "2024-02-26",
"bmV": 10.55,
"bmVmin": 10.01,
"bmVmax": 13.43,
"b1V": 10.55,
"b1Vmin": 10.01,
"b1Vmax": 13.44,
"b2V": 10.55,
"b2Vmin": 10.01,
"b2Vmax": 13.44,
"b1Ah": -1.2,
"b2Ah": 29.8,
"temp": 23,
"tempMin": 20,
"tempMax": 35
},
...
],
"realtime": [
{
"timestamp": "2024-02-27 12:07:57",
"bmV": 12.65,
"b1V": 12.08,
"b2V": 12.08,
"b1A": 0,
"b2A": 0,
"temp": 34
},
{
"timestamp": "2024-02-27 12:07:47",
"bmV": 12.35,
"b1V": 12.3,
"b2V": 12.64,
"b1A": 0,
"b2A": -1,
"temp": 34
},
...
]
}
```
https://api.giona.tech/domotica/battery
#### Realtime dashboard
https://app.giona.tech/#battery