Robotics lab module 3 ppt 4
- 1. INTERNET OF THINGS DHT 11 TEMPERATUREAND HUMIDITY SENSOR WITH ARDUINO 4
- 3. WHAT IS ANDHT11? • Temperature and Humidity Sensor 3 Raw DHT11 • Requires resistor (10kohm) pull-up to VCC • Connections from left: • VCC (3-5V), Data Out, None, GND • Humidity: 20 – 90% ± 5% • Temperature: 0 - 50°C ±2°C DHT11 with breakout Onboard pull-up resistor Connection from left: VCC, Data Out, GND
- 4. CODE • Download and extract zip file • https://github.com/yeokm1/dht-sensor- usage • Remove“-master” from directoryname • dht-sensor-usage-master -> dht-sensor-usage • Open “dht-sensor-usage.ino” • Try to verify/upload
- 6. CONNECTIVITYWITHARDUINO • This is for the raw DHT11 • For DHT11 breakout: • 5V to + • Arduino Pin A0 to Out • GND to -
- 7. #include<dht.h> dht DHT11; void setup() { Serial.begin(9600); } void loop() { int chk = DHT11.read11(A0); Serial.print(" Humidity " ); Serial.print(DHT11.humidity); Serial.print(" "); Serial.print(" Temparature "); Serial.println(DHT11.temperature); delay(2000); } CODE FOR DHT INTERFACING FOR ARDUINO
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