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https://github.com/machv/esp8266-irrigator
Simple irrigation controller based on ESP8266.
https://github.com/machv/esp8266-irrigator
esp8266 mqtt
Last synced: 12 days ago
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Simple irrigation controller based on ESP8266.
- Host: GitHub
- URL: https://github.com/machv/esp8266-irrigator
- Owner: machv
- Created: 2019-05-10T09:06:32.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2020-04-26T09:06:45.000Z (over 4 years ago)
- Last Synced: 2024-11-07T23:41:12.523Z (2 months ago)
- Topics: esp8266, mqtt
- Language: C++
- Homepage:
- Size: 8.64 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Simple Irrigator controller
HW Parts used:
- NodeMCU v0.9
- Two Channel IIC I2C Logic Level Converter Bi-Directional Module 5V to 3.3V NEW
- Full Port Brass DN20 Normally Open Normally Close Valve AC/DC9V-24V BSP/NPT 3/4'' Electric Shut Off Valve For Home Water (https://www.aliexpress.com/item/AC-DC9-24V-3-4-full-port-brass-electric-ball-valve-normal-open-or-normal-closed/886318623.html)
- G1/2"/G3/4" Copper Hall Effect Liquid Water Flow Sensor Switch Flowmeter Meter J [G 3/4"]
- 5V Two 2 Channel Relay Module With optocoupler For PIC AVR DSP ARM Arduino
## MQTT
| Variable | Example | Meaning |
| -------- | ------- | ------- |
| `MQTT_PREFIX` | `zavlazovac/` | Left prefix appended to relay's channel, configurable in web interface. |
| `RELAY_INDEX` | `1` | Index of the relay, numbering starts from 1 |
### LWT channel
Last will topic is used to detect availability, messages sent there are with retain tag enabled.
```
{MQTT_PREFIX}/status
```
| Payload | Value | Retain |
| ------ | --- | -- |
| Available | `Online` | yes |
| Not Available | `Offline` | sent as LTW |
### State updates channel
State topic publishes current status of the relays.
```
{MQTT_PREFIX}/state/{RELAY_INDEX}
```
| Payload | Value | Retain |
| ------ | --- | -- |
| Running | `1` | no |
| Not running | `0` | no |
### Commands channel
Command topic accepts these state request changes and accepts both string `ON`, `OFF` or interger `1`, `0`.
```
{MQTT_PREFIX}/command/{RELAY_INDEX}/power
```
| Payload | Value |
| ------ | --- |
| Running | `1` or `ON` |
| Not running | `0` or `OFF` |
### Flow meter channels
Flow meter updates are sent in format:
```
{MQTT_PREFIX}/{RELAY_INDEX}/{METRIC}
```
where `{METRIC}` is from:
| Metric | Type | Unit |
| ------ | --- | --- |
| `currentFlow` | `float` | L/s |
| `totalFlow` | `float` | ml |
### VS Code tips
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