The 4-Pin IR Infrared Flame Detection Sensor Module is designed to detect fire or flame sources by sensing infrared light in the 760nm–1100nm wavelength range. It is capable of detecting flames from lighters, candles, alcohol, and other visible fire sources. This sensor provides both analog and digital outputs, allowing flexible use in a wide range of applications. The digital output becomes HIGH when flame is detected (threshold adjustable), while the analog output gives a variable voltage based on flame proximity and intensity. Equipped with a sensitive photodiode, an LM393 comparator chip, and adjustable potentiometer, this module is suitable for flame alarm systems, fire-fighting robots, and safety automation projects. It can be easily used with Arduino, Raspberry Pi, ESP32, and other development boards. Specifications:

This alcohol sensor is suitable for detecting alcohol concentration on your breath just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog resistive output based on alcohol concentration. The drive circuit is very simple all it needs is one resistor. A simple interface could be a 0-3.3V ADC.

Infrared proximity sensor made by Sharp. Part # GP2Y0A02YK0F has an analog output that varies from 2.8V at 15cm to 0.4V at 150cm with a supply voltage between 4.5 and 5.5VDC. The sensor has a Japanese Solderless Terminal (JST) Connector. We recommend purchasing the related pigtail below or soldering wires directly to the back of the module.

Description: Dual Axis XY Joystick KY023 KY-023 JOY-STICK Dual Axis XY Joyst-icks 5 Pin 5V Module PS2 Joy-stick Control Lever Sensor Game Controller With Cables For Arduino Electronics Circuitry & Parts Analog joystick-like devices used for example Controllers PlayStation second detection directions of traffic is carried by two potentiometers – one (4.7 k Ω ) on each axle. The device also has a button activated by pressing the knob . To operate the device, all you need is a microcontroller with an analog-to-digital converter (analog input in Arduino ). The location information of the knob is transmitted through an analog signal, in which the voltage corresponds to the given position. Each axis has a separate analogue output. The state of the button is detected by a digital output which, when switched on, becomes low. 1. Input voltage range: DC 3.3V to 5V 2. Output signal: the module has two-way analog output and a digital output interface, the output value corresponding to (X, Y) bi-axial offset, the type of analog; keys that the user press, the Z axis is a push switch read as digital input. 3. Arduino controller can be programmed, the sensor expansion board plug, complete with creative remote interactive works. 4. Cross joystick is a bi-directional 10K resistor, with the rocker in different directions, the resistance should be changed by moving the lever. This module uses 5V power supply, the original state of X, Y read voltage of 2.5V or so, when pressed with the arrow direction, the read voltage value increases with the maximum to 5V, voltage decreases while move lever in opposite direction, The minimum is 0V. You have to use 2 analog inputs of MCU to read (X Y) the analog output of this module, the switch is a button which you may use with a digital input pin of your Micro Controller eg. Arduino, Raspberry Pi, Orange Pi, NodeMCU, ESP32, ARM AVR development boards. Features: Two independent Potentiometer: one for each axis ( X and Y) Auto return to center position

This is a simple-to-use compressed natural gas (CNG) sensorsuitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from 200 to 10000ppm. This sensor has a high sensitivity and fast response time. The sensor's output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5Vadd a load resistanceand connect the output to an ADC. This sensor comes in a package similar to our MQ-3 alcohol sensorand can be used with the breakout board below. Mikroelectron.com offer a wide range of high sensitivity and fast responsive methane cng gas sensor-mq-4 online @ JD7.00 with free shipping.methane cng gas sensor - mq-4

The HC-SR501 PIR Motion Sensor is a widely used module designed to detect infrared radiation (IR) emitted by the human body. It is often used in motion detection systems for security, automatic lighting, and energy-saving applications. The sensor works by detecting changes in the IR radiation in its field of view. Once motion is detected, the sensor sends a signal to a microcontroller or external device. The module is easy to use and can be powered with 5V DC, featuring adjustable sensitivity and delay time. This sensor is compact, reliable, and commonly used in security systems, automatic lighting, and home automation projects. 100% Brand New. PCB Dimensions: Approx. 32 x 24mm Screw hole distance 28mmscrew aperture 2mm Sensor lens size: (diameter): 23mm (default) Operating voltage: DC5V to 20V Static power consumption: 65 microamps Level output: 3.3Vlow 0V Delay time: adjustable (0.3 seconds to 18 seconds) Blockade Time: 0.2 seconds Trigger Mode: L can not be repeatedH can be repeated default value H Sensing range: less than 120 degree cone angle of less than 7 meters Operating temperature: -15 to +70 degrees Automatic induction: when someone enters its sensing range input highpeople leave the sensor range automatic delay off high. Output low