KIT INCLUDES:
- Arduino mega with USB Cable - 1
- LCD keypad shield - 1
- DHT11 temperature and humidity sensor-1
- Jumper wire ( Male to Female) – 40 pieces
- 9v battery with DC jack - 1
HARDWARE REQUIRED
- Arduino mega with USB Cable - 1
- LCD keypad shield - 1
- DHT11 temperature and humidity sensor-1
- Jumper wire ( Male to Female) – 40 pieces
- 9v battery with DC jack - 1
SOFTWARE REQUIRED
Arduino IDE 1.8.5 (programmable platform for Arduino)
Click To Download :https://www.arduino.cc/en/Main/Software
SPECIFICATIONS
16*2 LCD Keypad shield
- Operating Voltage:5V
- 5 Push buttons to supply a custom menu control panel
- RST button for resetting arduino program
- Integrate a potentiometer for adjusting the backlight
- Expanded available I/O pins
- Expanded Analog Pinout with standard DFRobot configuration for fast sensor extension
To connect multiple GND and 5V wires soldering may be required
DHT22 temperature and humidity sensor
- 3 to 5V power and I/O
- 2.5mA max current use during conversion (while requesting data)
- Good for 0-100% humidity readings with 2-5% accuracy
- Good for -40 to 125°C temperature readings ±0.5°C accuracy
- No more than 0.5 Hz sampling rate (once every 2 seconds)
- Body size 15.1mm x 25mm x 7.7mm
LIBRARY REQUIRED
DHT11 Library:
https://github.com/adafruit/DHT-sensor-library
CIRCUIT CONNECTION
- Connect ground of DHT11 to the mega ground
- Connect Vcc of DHT11 to the mega 5v
- Connect data of DHT11 to D22 pin of mega
CODE
WORKING
This is a simple temperature and humidity monitor device made by use of components like lcd keypad shield , dht11 sensor and arduino mega. The temperature accuracy of dht11 not up to the point but it’s good.