4×4 Matrix Keypad Module In Pakistan

MQ4 MQ 4 MQ-4 High Sensitivity Gas Methane (CNG) Detector Sensor Module For Arduino is a simple to use MQ-4 High Sensitivity Gas Methane (CNG) Detector Sensor Module For Arduino which can sense the presence of Compressed Natural Gas(CNG), methane(CH4), etc in the air. The module uses our MQ-4 sensor. It simplifies the interface to the odd pin spacing of the sensor and provides the interface through standard 4 x 0.1″ header pins. It provides an analog output corresponding to the concentration of the gases in the air and an easy-to-use digital output. The onboard potentiometer can be used to set the maximum gas concentration beyond which the digital output gets triggered. Just power the module with 5V set the threshold and you can start getting the gas concentration of the air around the sensor! An onboard LED signals the presence of any gas. The digital output can be easily interfaced to microcontrollers and other circuits. The analog output can be hooked up to an ADC of a microcontroller to get a wide range of sensor readings. This is a simple-to-use compressed natural gas (CNG) sensor, suitable 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 Muscle Sensor Module for Arduino Specially Designed For Microcontrollers will measure the filtered and rectified electrical activity of a muscle, depending on the amount of activity in the selected muscle. By detecting the electromyogram (EMG), measuring muscle activity has traditionally been used in medical research, however with shrinking but more powerful microcontrollers and integrated circuits advent EMG power Road and sensors can be used for various control systems. The sensor will measure the electrical activity of the muscle output 0-Vs volts, the output size to take Depending on the amount of muscle activity is selected.