Arduino Programming using NodeMCU 1.0 (ESP-12E)

 This experiment shows how easy it is to program using Arduino. Here this experiment demonstrates different programs using different sensors.

Experiment 1: Blinking of Internal LED

Things Required:

1.Laptop
2.Arduino IDE
3.Bread Board

Wiring Connection:

Simply connect the NodeMCU to the Laptop and run the blink program.

Code: https://github.com/jyothi-lanka/IoT/blob/master/Arduino/InternalLEDBlink.ino

Demo:

Experiment 2: Blinking of External LED

Things Required:

1.Laptop
2.Arduino IDE
3.LED
4.Resistor (330 ohms)
5.Jumper wires
6.Bread Board

Wiring Connection:

Connect as shown below:

1. Connect the D7 (pin 13) of NodeMCU to one end of the resistor.

2. Connect the other end of the terminal to the positive terminal of LED.

3. Connect the negative terminal of LED to GND ().

Code: https://github.com/jyothi-lanka/IoT/blob/master/Arduino/ExternalLEDBlink.ino

Demo:

Experiment 3: Temperature and Humidity measurements using DHT11 Sensor 

Things Required:

1.Laptop
2.Arduino IDE
3.DHT11 sensor
4.Resistor(10 K ohms)
5.Jumper wires
6.Bread Board

Wiring Connection:

Connect as shown below:

1. Connect pin1 of DHT11 to VCC (3.3V) pin1 of NodeMCU.
2. Connect pin2, the Digital output pin of the sensor to D7(pin 13) of NodeMCU.
3. Connect pin 4 of DHT to GND (pin of NodeMCU).
4. Connect resistor across the DHT11 output(pin2 of DHT11) and VCC(pin1 of NodeMCU).

Code: https://github.com/jyothi-lanka/IoT/blob/master/Arduino/DHT11Sensor.ino

Demo: