Skip to main content

Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice Board

Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice Board
Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice BoardPyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice BoardPyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice Board


Get Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice Board


Circuit composition and function:

The circuit consists of pyroelectric infrared sensor PIR to detect infrared, triodes VT1 and IC2A to amplify signals, IC2B and IC3 as comparators, triodes VT2 and buzzer HA to form an alarm circuit, VT3 and peripheral components to form a startup delay circuit. The circuit is equipped with rectification filter and battery E, in order to continue to supply power preventing of power failure.
This circuit can be used as home anti-theft. When family leaves the room, switch S2 is closed and the circuit works. As soon as someone enters the room for a while, they will sound an alarm. The monitoring range is 7m and 86 °.
Note: did not have assemble manual.

Package included:

1 x Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit


















Pyroelectric Infrared Sensor Anti-theft Circuit DIY Kit Soldering Practice BoardSee detail


Popular posts from this blog

MQ137 Gas Sensor Module MQ-137 Ammonia Sensor Module NH3 Sensor Module

Buy MQ137 Gas Sensor Module MQ-137 Ammonia Sensor Module NH3 Sensor Module Description:   Size: 32mm X22mm X30mm length * width * height Main chip: LM393, NH3 gas sensing probe Working voltage: DC 5V   Features:   1. It has a signal output indicator indication; 2, dual signal output (analog output and TTL level output); 3. The TTL output valid signal is low level; (when the output low level, the signal light is on, it can be connected to the IO port of the single chip) 4. The analog output increases with increasing concentration, and the higher the concentration, the higher the voltage; 5. High sensitivity and selectivity to ammonia; 6. Has a long service life and reliable stability; 7. Fast res ponse recovery features; 8. With mounting holes for easy installation; 9. The probe can be plugged and unplugged for easy testing.   Application:   Harmful gas detection device for home and environment, suitable for the detection of ammonia vapor, ammonia gas sensor test concentration rang...
Read more

[lzcgs] Wireless bluetooth Speaker Double Units 3D Sound LED Display Alarm Clock FM Radio Soundbar Desktop Speaker AUX TF Card for Phone Laptop COD

Buy Wireless bluetooth Speaker Double Units 3D Sound LED Display Alarm Clock FM Radio Soundbar Desktop Speaker AUX TF Card for Phone Laptop COD Specifications: Peak power: 6W Charging input: 5V Frequency response: 100Hz-20KHz Signal-to-noise ratio: 85dB Distortion: ≤0.5% Impedance: 4 Ω Inetrface: 3.5mm Color: Black bluetooth version: 5.0 Material: ABS Size: 385*45*60mm Package Included: 1 * bluetooth Digital Alarm Clock Speaker 1 * Charging Cable  1 * Manual  Wireless bluetooth Speaker Double Units 3D Sound LED Display Alarm Clock FM Radio Soundbar Desktop Speaker AUX TF Card for Phone Laptop COD Buy Now
Read more

ESP8266 ESP-12S A9G GSM GPRS+GPS IOT Node Development Board Module with All in One WiFi Cellular GPS Tracking Module

Buy ESP8266 ESP-12S A9G GSM GPRS+GPS IOT Node Development Board Module with All in One WiFi Cellular GPS Tracking Module Overview:   1. ESP-12S A9G GSM GPRS+GPS IOT Node, an all-in-one cellular phone module with WiFi module with that lets you add location-tracking, text, SMS and data to your project. This IOT node has both WiFi and GPRS support. That means it's perfect for just about any wireless or Internet-connected project. 2. This is the ESP-12S A9G GSM GPRS+GPS IOT Node, which based on the ESP-12S and the cellular phone module A9G. TWO modules all are come from Ai-thinker. With built in USB and battery charging, it is a really IOT development board. It is very useful on your IOT project. 3. At the IOT Node’s heart is an ESP8266 WiFi microcontroller clocked at 80 MHz and at 3.3V logic. This microcontroller contains a Tensilica chip core as well as a full WiFi stack. You can program the microcontroller using the Arduino IDE for an easy-to-run Internet of Things core. We wired u...
Read more