Trigger mode: High level 5V relay module Can be used for microcontroller development board module or home appliance control 5V – 12V TTL control signal Can control DC or AC signal, also 220V AC load Normally open / closed contact Power indicator Controlled lights bright when pull and not shine when disconnect Increase the transistor drive relay coils, control pins high impedance Control pins have pull down circuit to prevent malfunction of relay vacant
The Hall Effect Magnetic and Proximity Sensor Module can be used to detect the presence (or absence!) of nearby objects such as magnets. This sensor accepts a GND and +5V supply, and has a single digital output which goes low (GND) when a magnetic field is detected. The linear sourcing output voltage is set by the supply voltage and varies in proportion to the strength of the magnetic field. It has a low current consumption of only 6 mA typically at 5 Vdc, thus making this sensor energy efficient and suitable for low voltage applications.
The current, and the voltage, running through the sensor is changed in relation to the presence of a magnetic field. This sensor is designed, such that it can tell you the amount of voltage change as an analog output, and if the voltage has changed as a digital output. Since the sensor can provide digital and analog outputs, there is a surprising amount you can do with it. You can easily make a working sensor, or make a much more complicated one.
This sensor is built in such a way that it has everything needed to operate, including an LED. You can get a basic magnetic switch with nothing more than a 5v battery by connecting the magnet ports to the + and G pins. When a magnet is brought close to the sensor, the voltage will change and send a signal to the sensors integrated LED, telling it to light up. Making this is as one of the simplest sensor you can use.
DHT11 digital temperature and humidity sensor is a calibrated digital signal output temperature and humidity combined sensor, which Application-specific modules capture technology and digital temperature and humidity sensor technology to ensure that products with high reliability and excellent Long-term stability. The product has excellent quality, fast response, anti-interference ability, high cost and other advantages. Single Wire serial interface that allows quick and easy system integration. Ultra-small size, low power consumption, signal transmission distance Up to 20 meters, making it to the class of applications and even the most demanding applications is the best choice. Products for the 4-pin single row Pin package, easy connection.
This is DS18B20 digital temperature sensor module for Arduino -55°C~125°C Digital signal output Detect ambient air temperature Compatible with Arduino DIY project Main chip: 18B20 temperature sensor Material: PCB
A flame sensor module that consists of a flame sensor (IR receiver), resistor, capacitor, potentiometer, and comparator LM393 in an integrated circuit. It can detect infrared light with a wavelength ranging from 700nm to 1000nm.The far-infrared flame probe converts the light detected in the form of infrared light into current changes. Sensitivity is adjusted through the onboard variable resistor with a detection angle of 60 degrees.