ESP8266 Home Automation Projects

Testing the PIR module

For now, let's test the PIR module to check that it is working. In order to achieve this you will need:

• An ESP8266 module (NodeMCU, WeMos, or an other board)
• A PIR module
• A Breadboard
• Wires

For the software part use the following sketch:

• Define the PIR as it will be connected to the D7 pin, set the pirState to LOW assuming that the PIR is OFF, and set the current state to 0:

#define PIN_PIR  D7              
int pirState = LOW;              
int current_value = 0;                     

• During setup we will declare the D7 pin where the PIR is connected to an input pin:

void setup() { 
  pinMode(PIN_PIR, INPUT);      
  Serial.begin(115200); 
} 

Now continually monitor the  ...