In this tutorial we will show how to build ESP8266 WiFi PIR sensor with ESP8266 and PIR.

Materials

-ESP8266 module

	ESP8266 ESP-01 Serial WIFI Wireless Transceiver Module
	$2.11
	$17.00

	ESP8266 ESP-03 Serial WIFI Wireless Transceiver Module
	$2.07
	$2.15

	ESP8266 ESP-12 Serial WIFI Wireless Transceiver Module
	$2.06
	$1.75

	ESP8266 ESP-05 Serial WIFI Wireless Transceiver Module
	$1.88

	ESP8266 ESP-07 Serial WIFI Wireless Transceiver Module
	$2.18
	$1.88

	ESP8266 Lua Nodemcu WIFI Network Development Board
	$7.43
	$2.65

-PIR sensor module HC-SR501

	Pyroelectric Infrared Motion Sensor Detector Module HC-SR501
	$0.99
	$1.05

See buying guide at the end of tutorial.

PIR sensor display in EasyIoT server.

EasyIoT server

In EasyIoT server web interface add Virtual node. Type for virtual node is Motion (DI). See How to add node to EasyIoT server tutorial for detail. Remember node address because it will be needed later. Add node to one of Groups to display.

Virtual node address.

Program

Program can be found on GitHub. Correct following lines in program (AP username password, server IP address, node address, EasyIoT server username and password):

//AP definitions

#define AP_SSID "your AP SSID"

#define AP_PASSWORD "your AP password"

// EasyIoT server definitions

#define EIOT_USERNAME    "admin"

#define EIOT_PASSWORD    "test"

#define EIOT_IP_ADDRESS  "192.168.1.5"

#define EIOT_PORT        80

#define EIOT_NODE        "N8S0"

Compile and load program with ESP8266 Arduino IDE. Read tutorial for direct ESP8266 programming in Arduino IDE.

Connection

Power supply for ESP8266 is max 3.6V and PIR sensor is powered by 5V. If you check datasheet for PIR sensor you will see that internally is powered by 3.3V (see 3.3 regulator).

Internal logic is 3.3V so output. It can be directly connected to ESP8266 GPIO pin.

PIR

PIR HC-SR501 pinout

 ESP8266 and PIR HC-SR501 connection.

Check also EasyIoT Cloud ESP8266 PIR sensor tutorial.

See more tutorials at ​http://iot-playground.com/build​

Buying guide

To support this site and EasyIoT framework development please buy in our store.

Pyroelectric Infrared Motion Sensor Detector Module HC-SR501

New Adjustable Infrared IR PIR Motion Sensor Detector Module Security Motion HC-SR501

 

$0.99  > >  

 

$1.05  > >  

5PCS Pyroelectric Infrared Motion Sensor Detector Module HC-SR501

Infrared IR PIR Motion Sensor Detector Module Security Motion HC-SR501

 

$4.23  > >  

 

$4.10  > >  

5pcs 3.3V regulator module 800mA

Basic regulator module based on AMS1117.

 

$1.12  > >  

 

$1.56  > >  

ESP8266 ESP-01 Serial WIFI Wireless Transceiver Module

ESP8266 Serial WIFI Wireless Transceiver Module

 

$2.11  > >  

 

$17.00  > >  

ESP8266 ESP-03 Serial WIFI Wireless Transceiver Module

ESP8266 serial WIFI model ESP-03

 

$2.07  > >  

 

$2.15  > >  

ESP8266 ESP-12 Serial WIFI Wireless Transceiver Module

ESP8266 serial Port WIFI wireless module ESP-12

 

$2.06  > >  

 

$1.75  > >  

ESP8266 ESP-05 Serial WIFI Wireless Transceiver Module

ESP8266 ESP-05 Serial WIFI Wireless Transceiver Module

 

$1.88  > >  

ESP8266 Lua Nodemcu WIFI Network Development Board

ESP8266 Lua Nodemcu WIFI Network Development Board

 

$7.43  > >  

 

$2.65  > >