DHT22 output calibrated digital signal. It utilizes exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability.Its sensing elements is connected with 8-bit single-chip computer. Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of programme in OTP memory, when the sensor is detecting, it will cite coefficient from memory. Small size & low consumption & long transmission distance(20m) enable DHT22 to be suited in all kinds of harsh application occasions. Single-row packaged with four pins, making the connection very convenient.
This Digital temperature sensor DS18B20 will tell you, with 9 to 12 bit resolution! Uses only one wire to the Arduino or other micro controller for communication. With the One Wire protocol, you can operate a large number of these sensors from one Arduino pin. Simple to use and highly accurate. Measures temperatures from -55°C to 125°C (-67°F to 257°F).
This is a pre-wired and waterproofed version of the DS18B20 sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C. Because they are digital, you don’t get any signal degradation even over long distances! These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.
Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules includes ultrasonic transmitters, receiver and control circuit.
The basic principle of work: (1) Using IO trigger for at least 10us high level signal, (2) The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back. (3) IF the signal back, through high level , time of high output IO duration is the time from sending ultrasonic to returning. Test distance = (high level time×velocity of sound (340M/S) / 2,
650nm 5mW 6mm Laser Dot Diode Module Red Copper Head Tube
Mercury switch module and a digital interface, built-in 13 LED build a simple circuit to produce tilt warning lamp 13 comes with digital interfaces of the LED, the mercury tilt switch sensor interface to access digital 3, when the tilt switch sensor senses a key signal, LED lights, otherwise off.
The PIR (Passive Infra-Red) Sensor HC-SR501 is a pyroelectric device that detects motion by measuring changes in the infrared levels emitted by surrounding objects. This motion can be detected by checking for a high signal on a single I/O pin.
Module provides an optimized circuit that will detect motion up to 6 metres away and can be used in burglar alarms and access control systems.
The PIR sensor and Fresnel lens are fitted onto the PCB. This enables the board to be mounted inside a case with the detecting lens protruding outwards, whilst still allowing easy access to the controls inside the case.
The AD8232 is a neat little chip used to measure the electrical activity of the heart. This electrical activity can be charted as an ECG or Electrocardiogram. Electrocardiography is used to help diagnose various heart conditions.
This is a very popular, ultra low cost digital temperature and humidity sensor. It uses a capacitive humidity sensor, and a thermistor to measure the surrounding air temperature. The result is available via a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds. But, for most applications this is not an issue at all.
This module should be connected as follows:
·The left most pin (marked 'S' on PCB) to your data input.
·The centre pin to 3.0 to 5.5V power.
·The right most pin (marked '-' on PCB) to ground.
Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin!
The DHT11 is a low cost version of the DHT22 sensor. The more expensive DHT22 is more precise, more accurate and works in a wider temperature and humidity range.
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 reduced current consumption of only 6 mA typically at 5 Vdc help make this sensor energy efficient.
This module uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, phototransistor used to obtain the flux emitted, when the blood pressure pulse by the finger when the resistance of the phototransistor will be slight changed.
We choose a very high resistance resistor R1, because most of the light through the finger is absorbed, it is desirable phototransistor sensitive enough. Resistance can be selected by experiment to get the best results.
The most important is to keep the shield stray light into the phototransistor. For home lighting that is particularly important because the lights at home mostly based 50HZ or 60HZ fluctuate, so faint heartbeat will add considerable noise.
This sensor is specially designed line sensor array with analog/Digital output and it’s ideal for fast line following and grid solving robot applications.This sensor provides analog/Digital output voltage, which will vary depending on the amount of IR light reflected back to the sensor and hence user can apply various controlling algorithms for smooth control of the robot motion.
The sensor package TCRT5000 is a high sensitivity reflectance sensor comprised of an IR emitting LED and high sensitivity IR phototransistor.
This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ-7 can detect CO-gas concentrations anywhere from 20 to 2000ppm.
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 5V, add a load resistance, and connect the output to an ADC.
With phenomenal market understanding, we are able to introduce an extensive range of MQ2 Gas Sensor Module. The offered module has thick PCB.It is a best smoke detector sensor. It is one of the perfect modem for prototyping with the MQ2 and device that require an antenna connection. This module has a female signal pin and will correctly mate with the original type antennas. Moreover, clients can opt for different dimensions according to the specific business needs. In addition, the module offered by us has gained highly appreciation among our clients.
|Application||Workplace, Personal, Law Enforcement Agencies, Clinical Use, Marine|
The proximity sensor module is a general purpose proximity sensor. Here we use it for collision detection. The module consist of a IR emitter and TSOP receiver pair. The high precision TSOP receiver always detects a signal of fixed frequency. Due to this, errors due to false detection of ambient light are significantly reduced.
A reed module is a magnetic sensor that is normally open and get closed when exposed to a magnetic field.
The module includes a 10 K Ohm resistor, so no additional parts needed.
Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straight forward to use. The two large exposed pads function as probes for the sensor, together acting as a variable resistor. The more water that is in the soil means the better the conductivity between the pads will be and will result in a lower resistance, and a higher SIG out.
This sound sensor module allows you to detect when sound has exceeded a set point you select. Sound is detected via a microphone and fed into an LM393 op amp.
The sound level set point is adjusted via an on board potentiometer. When the sound level exceeds the set point, an LED on the module is illuminated and the output is sent low.
This module uses 24 high precision A/D converter chip hx711. It is a specially designed for the high precision electronic scale design, with two analog input channel, the internal integration of 128 times the programmable gain amplifier. The input circuit can be configured to provide a bridge type pressure bridge (such as pressure, weighing sensor mode), is of high precision, low cost is an ideal sampling front-end module.
The rain sensor module is an easy tool for rain detection. It can be used as a switch when raindrop falls through the raining board and also for measuring rainfall intensity. The module features, a rain board and the control board that is separate for more convenience, power indicator LED and an adjustable sensitivity though a potentiometer. The analog output is used in detection of drops in the amount of rainfall. Connected to 5V power supply, the LED will turn on when induction board has no rain drop, and DO output is high. When dropping a little amount water, DO output is low, the switch indicator will turn on. Brush off the water droplets, and when restored to the initial state, outputs high level.
LDR sensor module is used to detect the intensity of light. It is associated with both analog output pin and digital output pin labelled as AO and DO respectively on the board. When there is light, the resistance of LDR will become low according to the intensity of light. The greater the intensity of light, the lower the resistance of LDR. The sensor has a potentiometer knob that can be adjusted to change the sensitivity of LDR towards light.
Accurate flow measurement is an essential step both in the terms of qualitative and economic points of view. Flow meters have proven excellent devices for measuring water flow, and now it is very easy to build a water management system using the renowned water flow sensor
YF-S201.This sensor sits in line with the water line and contains a pinwheel sensor to measure how much water has moved through it. There is an integrated magnetic Hall-Effect sensor that outputs an electrical pulse with every revolution.
The sensor comes with three wires: Red/VCC (5-24V DC Input), Black/GND (0V) and Yellow/OUT (Pulse Output). By counting the pulses from the output of the sensor, we can easily calculate the water flow rate (in litre/hour – L/hr) using a suitable conversion formula.
This is an Arduino RGB Colour Sensor breakout TCS3200 RGB sensor chip and 4 white LEDs. The TCS3200 colour sensor can detect and measure a nearly limitless range of visible colours. Applications include test strip reading, sorting by colour, ambient light sensing and calibration, and colour matching, to name just a few.
The TCS3200 has an array of photo detectors, each with either a red, green, or blue filter, or no filter (clear). The filters of each colour are distributed evenly throughout the array to eliminate location bias among the colours. Internal to the device is an oscillator which produces a square-wave output whose frequency is proportional to the intensity of the chosen color.
Features of our offered Temperature Sensor are as follows:
Capacitive Sixteen Point Touch Module for Arduino/Raspberry pi/Robotics This 16 key capacitive touch keypad is based on the TTP229 capacitive sensor with accurate sensing of up to 16 points. Using this keypad provides a solid state alternative to mechanical type keypads providing the advantage of greater durability especially in dusty environments.
The TTP226 is capacitive sensing design specifically for touch pad controls. The device built in regulator for touch sensor. Stable sensing method can cover diversity conditions. Human interfaces control panel links through non-conductive dielectric material. The main application is focused at replacing of the mechanical switch or button. The ASSP can independently handle the 8 touch pads with 8 direct output pins.
The TTP224 capacitive touch sensor module is perfect for adding 4 capacitive touch inputs to your new project. This capacitive touch sensor module uses the TTP224 integrated circuit, making it easy to add capacitive touch input to your project. It features 4 sensitive touch pads that make an ideal replacement for the old fashioned switches.
This is a pre-wired and waterproofed version of the DS18B20 sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C. Because they are digital, you don't get any signal degradation even over long distances!
These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.
The Sharp distance sensors are a popular choice for many projects that require accurate distance measurements. This IR sensor is more economical than sonar rangefinders, yet it provides much better performance than other IR alternatives. Interfacing to most microcontrollers is straightforward: the single analog output can be connected to an analog-to-digital converter for taking distance measurements, or the output can be connected to a comparator for threshold detection. The detection range of this version is approximately 10 cm to 80 cm (4″ to 32″).
The 127 couples, 40mm x 40mm size module is a single stage module which is designed for cooling and heating up to 90°C applications.
The 127 couples, 40mm x 40mm size module is a single stage module which is designed for cooling and heating up to 90°C applications.
Can be used for power generation, cooling or heating applications
These modules are manufactured specifically for power generation but they can also be used for cooling and/or heating applications. They are far superior than standard peltiers for power generation applications.
The TSOP1738 is a infrared receiver tuned to react only to IR of frequency 38 kHz. It is perfect for making obstacle sensors and to accept signals from most IR remotes.
The TCRT5000 is a reflective sensor which includes an infrared emitter and phototransistor in a leaded package which blocks visible light. The package includes two mounting clips. TCRT5000L is the long lead version
Note: the left and right sound channel output end and "negative" can't meet together, otherwise will burn IC, and then good speaker should be taken before electricity (load).
This Laser Module is one of the more common devices found in Arduino sensor kits. Coupled with other components, it can be used to create trip wires or optical effects.
The is particularly neat because it can be directly powered from an Arduino output pin as it only draws 30 mA from the processor that has outputs rated for 40 mA.