Showing 26–50 of 55 results
-
$14.00
The flame sensor can detect flames or light sources with wavelengths in the range of 760 nanometers to 1100 nanometers. The flame detection distance of a lighter is between 80cm. The larger the flame, the farther the distance. The detection angle is about 60 degrees, which is particularly sensitive to the flame spectrum; it can be passed Adjust the potentiometer on the PCB to adjust the sensitivity.
-
$9.00
The voltage sensor adopts a voltage-divided detection method, and the maximum output voltage cannot exceed 25V. The module integrates a power indicator light to display the working status; as the input voltage changes, the output signal analog quantity changes accordingly and is connected to the controller. By judging the analog quantity of the signal pin, the voltage can be detected.
-
$14.00
This temperature sensor uses the LM35 temperature sensor, and its output voltage is in Celsius temperature scale. Its basic working principle: the temperature sensor circuit converts the measured temperature signal into a voltage signal and outputs it to the signal amplification circuit. The voltage signal corresponding to the temperature value is amplified and output to the A/D conversion circuit, which converts the voltage signal into a digital signal and sends it to the A/D conversion circuit. To the single-chip computer system, the single-chip computer system processes the digital quantity according to the display needs, and then sends it to the temperature display system for display.
-
$14.00
This sound sensor detects the intensity of environmental sound. It can only detect the presence or absence of sound, and cannot identify the size of the sound or the sound of a specific frequency. The sensor integrates a power indicator light that can display the working status. By detecting the level of the sensor’s output electric frequency, it can be connected to other sensors or controllers to form an interesting voice-activated switch.
-
$48.00
The color sensor is also known as “color sensor”, “color recognition sensor”, “color discrimination sensor”, “digital color sensor” and other names. The principle of the color sensor is to obtain color data by dividing visible light into different signals through its internal red (R), green (G), and blue (B) sensors plus color filters.
-
$14.00
This sensor uses the 3144 Hall switch integrated circuit, which is a magnetic sensitive circuit with the characteristics of small size, high sensitivity and fast response.
Integrated power indicator light and working status indicator light can clearly check the working status of the sensor. When the sensor senses a magnetic field, the signal output bit outputs a low level and lights up the indicator light; when there is no magnetic field, the signal output bit outputs a high level.
-
$20.00
This smoke sensor uses MQ-2 type gas sensor, which can sensitively detect smoke and methane gas in the air. The 3P sensor connection line can be directly plugged into the Arduino uno controller for easy use. Combining the buzzer module and relay module, you can make smoke alarms, methane leak alarms, automatic smoke exhaust fans and other products to make indoor air The ideal sensor to meet environmental standards.
-
$96.00
The Bluetooth sensor is a master-slave Bluetooth serial port module. When the Bluetooth device is successfully paired and connected, the Bluetooth internal communication protocol can be ignored and Bluetooth is used directly as the serial port. When a connection is established, the two devices share a channel, that is, the same serial port. One device sends data to the channel, and the other device can receive the data in the channel. Of course, there are certain conditions for establishing this kind of channel connection, which is to set the AT mode of Bluetooth to enable pairing connection.
-
$7.20
Resistive sensors are implemented using a voltage-divided detection method. The module integrates a power indicator light to display the working status; as the resistance changes, the output signal analog quantity changes accordingly and is connected to the controller. By judging the analog quantity of the signal pin, the resistance can be detected.
-
$14.00
The relay sensor uses high-quality relays. The maximum load of the normally open interface is AC 250V/10A and DC 30V/10A. The sensor has one signal input and the trigger voltage is above 0.7V. The sensor integrates a power indicator light to display the working status.
-
$11.00
The sensor uses the DS1302 chip, which contains a real-time clock/calendar and 31 bytes of static RAM, and communicates with the microcontroller through a serial interface. The real-time clock/calendar circuit provides seconds, minutes, hours, days, weeks, months, and years of information, and the number of days in each month and leap year can be automatically adjusted. Clock operation can be determined by AM/PM indication in 24 or 12 hour format. It has the characteristics of low power consumption and high precision.
-
$5.00
This sensor uses large-size LEDs and can be connected to a controller to simulate traffic light operation.
-
$4.32
The water level sensor is an easy-to-use, cost-effective water level/water droplet recognition detection sensor. It measures the size of the water droplets/water volume through a series of exposed parallel wire traces to determine the water level. Easily complete the conversion of water volume into analog signals to achieve the effect of water level alarm.
-
$24.00
This sensor uses MAX7219, which is an integrated serial input/output common cathode display driver. It connects the microprocessor to an 8-digit 7-segment digital LED display. It can also be connected to a bar graph display or 64 independent LEDs. Occupies less microprocessor resources. It includes an on-chip B-type BCD encoder, multi-channel scanning loop, segment driver, and an 8*8 static RAM to store each data. There is only one external register used to set the segment current of each LED, and the driving capability is strong. The segment driver of MAX7219 has reflow limitation to reduce EMI; the serial port of MAX7219 (up to 10MHz) is compatible with SPI; each data can be addressed and does not need to rewrite all displays when updating. The MAX7219 also allows the user to choose whether to encode or not encode each piece of data. The entire device contains a 150μA low-power shutdown mode, analog and digital brightness controls, a scan limit register allowing the user to display 1-8 bits of data, and a detection mode that lights all LEDs.
-
$13.00
This sensor uses a special digital tube drive circuit TM1650, which does not require a microcontroller to dynamically scan the digital tube. It only needs to write data to a specific address through the IIC method, with 8-level grayscale display. It is suitable for making digital tube displays such as counters, frequency meters, stopwatches, etc.
-
$48.00
This photoresistor sensor is sensitive to ambient light intensity. It is generally used to detect the brightness and light intensity of the surrounding environment. It can sense the light source in a fixed direction. When connected to the controller, it can read the ambient light intensity and can be made into a photoelectric switch. The photoresistor is A resistor made using the photoelectric effect of semiconductors whose resistance value changes with the intensity of incident light; when the incident light is strong, the resistance decreases, and when the incident light is weak, the resistance increases. Photoresistors are generally used for light measurement, light control and photoelectric conversion (converting changes in light into changes in electricity). Commonly used photoresistors are cadmium sulfide photoresistors, which are made of semiconductor materials. The resistance of the photoresistor changes with the intensity of the incident light (visible light). Under dark conditions, its resistance (dark resistance) can reach 1~10M ohms. Under strong light conditions (100LX), its resistance The value (bright resistance) is only a few hundred to thousands of ohms. The sensitivity of the photoresistor to light (ie, the spectral characteristics) is very close to the response of the human eye to visible light (0.4~0.76) μm. As long as the light that the human eye can feel will cause its resistance to change.
-
$13.00
This sensor is a capacitive point-type trigger sensor based on a touch detection IC (TTP23B). Under normal conditions, the sensor outputs low level. This mode is a low power consumption mode. When the finger touches the corresponding position, the module outputs high level. The sensor can be installed on non-metallic materials, which can avoid the troubles caused by traditional push buttons.
-
$7.20
This touch sensor uses high-quality mouse switches and has a long service life. This sensor integrates a power indicator light to clearly check the working status. The output is low when touched and remains high when released; it can be used for collision detection and contact collision detection of smart cars and robots.
-
$7.20
This module is a simple moisture sensor that can be used to detect soil moisture. When the soil is short of water, the sensor output value will decrease, and vice versa. Use this sensor to make an automatic flower watering device, which can be used when you are not available for a long time. At home or after the watering time, it can sense whether your plants are thirsty. Prevent the plants from withering before you know it is caused by lack of water. Cooperate with the Arduino controller to make your plants more comfortable and your garden smarter.
-
$20.00
The human body induction sensor can detect infrared rays emitted by moving people or animals and output switching signals. It can be used in various situations where moving human bodies need to be detected. Traditional pyroelectric infrared sensors require human body pyroelectric infrared probes, dedicated chips and complex peripheral circuits to implement. They are slightly larger in size, complex in circuit and slightly less reliable. Our newly launched infrared pyroelectric motion sensor is specially designed for Arduino. It adopts a digital integrated human body pyroelectric infrared probe and has the characteristics of small size, high reliability, low power consumption and simple peripheral circuit. Application scope: moving human body detection, occupancy detection, infrared anti-theft system, etc.
-
$13.00
This sound sensor is an analog output and uses a high-precision MIC to collect sound source amplification, timbre, frequency and other information; combined with the main control and power amplifier, it can be built into a sound amplifier.
-
$7.20
This tilt sensor uses a high-precision sw200D switch, which can detect tilt in one direction and send out a signal when there is tilt. Note that this sensor can only detect whether there is tilt, and cannot detect the degree of tilt.
-
$10.00
The buzzer is an electronic sounder with an integrated structure. It is powered by DC power and is widely used as a sound-generating device in computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers and other electronic products. .
The active buzzer can sound continuously when directly connected to a 5V rated power supply. This module can be used in conjunction with the Arduino motherboard to complete the design of simple circuits and achieve “plug and play”.
Passive buzzers can emit various sounds by inputting signals of specific frequencies, and can be connected to the motherboard to make various electronic keyboards.
-
$11.20
This sensor uses high-quality laser small copper head and has long service life. It is suitable for making electronic pointers, long-distance laser monitors and long-distance laser communications.
-
$10.00
This module is an Arduino-compatible 38KHz infrared receiving sensor that can receive standard 38KHz modulated remote control signals. By programming the Arduino, the decoding operation of the remote control signals can be achieved. Used in conjunction with Arduino and IR Transmitter Module, infrared wireless communication can be achieved.
English 
简体中文