In this tutorial we will show how to build ESP8266 WiFi PIR sensor with ESP8266 and PIR.
|ESP8266 ESP-01 Serial WIFI Wireless Transceiver Module|
|ESP8266 ESP-03 Serial WIFI Wireless Transceiver Module|
|ESP8266 ESP-12 Serial WIFI Wireless Transceiver Module|
|ESP8266 ESP-05 Serial WIFI Wireless Transceiver Module|
|ESP8266 ESP-07 Serial WIFI Wireless Transceiver Module|
|ESP8266 Lua Nodemcu WIFI Network Development Board|
-PIR sensor module HC-SR501
|Pyroelectric Infrared Motion Sensor Detector Module HC-SR501|
See buying guide at the end of tutorial.
PIR sensor display in 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 can be found on GitHub. Correct following lines in program (AP username password, server IP address, node address, EasyIoT server username and password):
#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.
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.
|OUT||GPIO2 on ESP8266|
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
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Pyroelectric Infrared Motion Sensor Detector Module HC-SR501
New Adjustable Infrared IR PIR Motion Sensor Detector Module Security Motion HC-SR501