The solar-powered an IoT-based system for monitoring environmental conditions using various sensors and transmitting the data to a server with the ESP32 micro-controller unit. (Temperature, Humidity, Illuminance (Lux), Soil Moisture, Soil Salinity, Battery Voltage) The system is designed to operate on an ESP32 microcontroller, utilizing Wi-Fi for connectivity and deep sleep mode for power conservation.
- Real-time Sensor Data Collection : Measures temperature, humidity, soil moisture, soil salinity, light intensity, and battery voltage.
- Data Transmission : Sends sensor data to the ThingSpeak server for remote monitoring and analysis.
- Power Management : Utilizes deep sleep mode to conserve power and extend battery life.
- Watchdog Timer : Ensures system stability and automatic recovery in case of failures.
- DHT12 Sensor : Measures temperature and humidity.
- BH1750 Sensor : Measures light intensity.
- Analog Pins : Measures soil moisture, soil salinity, and battery voltage.
- Power Control Pin : Manages the power to the sensors to conserve energy.
- Language: C++
- Platform: Arduino / ESP32
- WiFi Setup : Connects to the specified Wi-Fi network using provided SSID and password.
- Sensor Initialization : Initializes the I2C bus and sensors.
- Data Collection Functions : Reads data from each sensor and calculates average values.
- HTTP POST Request : Sends collected sensor data to the ThingSpeak server.
- Deep Sleep Function : Puts the ESP32 into deep sleep mode to save power between data collection cycles.
setup(): Initializes serial communication, Wi-Fi connection, sensors, and watchdog timer.loop(): Collects sensor data, sends it to the server, and enters deep sleep mode.sleepGo(): Configures and enters deep sleep mode for a specified duration.readTemp(): Reads and averages temperature data from the DHT12 sensor.readHumi(): Reads and averages humidity data from the DHT12 sensor.readSalt(): Reads and averages soil salinity data.readSoil(): Reads and averages soil moisture data.readLux(): Reads and averages light intensity data from the BH1750 sensor.readBattery(): Reads and averages battery voltage data.
Temperature = 23.45
Humidity = 56.78
soil = 12.34
salt = 1.23
lux = 456.78
bat = 3.70
HTTP Response code : 200
- 1 x USB-C
- IEEE 802.11 b/g/n Wi-Fi technology.
- Bluetooth: v4.2 BR/EDR and BLE (shares the radio with Wi-Fi)
DHT12 Sensor : Measures temperature and humidity.
BH1750 Sensor : Measures light intensity.
Analog Pins : Measures soil moisture, soil salinity, and battery voltage.
Power Control Pin : Manages the power to the sensors to conserve energy.
- ESP-32 Dev-Board
- 3.7 V
- 1200 mAh
- 6.0 V
- 6.0 V
- 1A
This project is licensed under the MIT License. See the LICENSE file for details.
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