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https://github.com/opencmm/hakaru
Stream the sensor data
https://github.com/opencmm/hakaru
cmm cnc esp32 iot laser mosquitto mqtt sensor
Last synced: about 1 month ago
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Stream the sensor data
- Host: GitHub
- URL: https://github.com/opencmm/hakaru
- Owner: OpenCMM
- Created: 2023-09-12T12:58:08.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-01-16T01:39:21.000Z (11 months ago)
- Last Synced: 2024-01-29T14:29:50.827Z (11 months ago)
- Topics: cmm, cnc, esp32, iot, laser, mosquitto, mqtt, sensor
- Language: C++
- Homepage:
- Size: 26.4 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# hakaru
Stream the sensor data
```mermaid
sequenceDiagram
participant ESP32 as ESP32
participant Client as MQTT Client
participant TouchSensor as Touch Sensor
ESP32->>+Client: Start streaming data
Client->>ESP32: Send message to sleep
ESP32->>+ESP32: Enter deep sleep mode
TouchSensor->>ESP32: Touch GPIO 4
ESP32-->>-ESP32: Wake up from deep sleep
ESP32->>+ESP32: Start booting
```
## Set up WiFi
1. Connect to the ESP32's WiFi AP
2. Open http://192.168.1.1
3. Select the SSID and enter the password of the WiFi network
Then the ESP32 will connect to the WiFi network and start streaming data.
The WiFi configuration will be saved in the flash memory.
Check if the ESP32 is connected to the WiFi network
```bash
ping opencmm.local
```
## Install Mosquitto MQTT Broker
ref. https://www.vultr.com/docs/install-mosquitto-mqtt-broker-on-ubuntu-20-04-server/
/etc/mosquitto/conf.d/default.conf
```
listener 1883 0.0.0.0
allow_anonymous false
password_file /etc/mosquitto/passwd
```
### Receive data
```bash
mosquitto_sub -t 'sensor/data' -v -h 192.168.10.104 -u opencmm -P opencmm
```
### Send command to ESP32
Update configuration
```bash
mosquitto_pub -t 'sensor/control' -h 192.168.10.104 -u opencmm -P opencmm -m '{"command": "config", "interval": 1000, "threshold": 100 }'
```
Go to sleep
```bash
mosquitto_pub -t 'sensor/control' -h 192.168.10.104 -u opencmm -P opencmm -m '{"command": "deepSleep" }'
```
Reset WiFi
```bash
mosquitto_pub -t 'sensor/control' -h 192.168.10.104 -u opencmm -P opencmm -m '{"command": "resetWifi" }'
```