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For Digital output the threshold value can be easily set by an on-board potentiometer. Using this module you can easily interface MQ3 Alcohol sensor to any Microcontroller, Arduino or even Raspberry Pi.
Since this Gas Sensor module is sensitive to alcohol it can be used in breathalyser. MQ3 Sensor also has small sensitivity to Benzine.
Features :
- Small
- Very sensitive
- Energy efficient
- Maximum response time of 20 seconds
- Measures temperature between -40 and 80 °C ( ±0.5 °C)
- Measures humidity between 5 and 99% ( ±2%)
Package Includes :
- 1 x Grove Temperature & Humidity Sensor Pro
- 1 x JST cable
Product Specification
| Usage/Application | Industrial |
| Type | SENSOR |
| Brand | RS Enter |
| Material | Plastic |
| Model Name/Number | DHT11 |
| Output Type | DIGITSL-ANALOG |
| Voltage | 3.3V-5V |
| Minimum Order Quantity | 1 |
Features :
- Fully calibrated
- Digital output, I2C interface
- Excellent long-term stability
- Quick response and strong anti-interference ability
- Wide voltage support 2.2-5.5V DC
Package Includes :
- 1 x Sensor Model DHT20
The DHT22 is a basic, ultra low-cost digital temperature and humidity sensor.
It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out 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, so when using our library, sensor readings can be up to 2 seconds old.
Specifications :
- Voltage: 3 to 5V power
- Temperature readings: ±2°C
- Current max: 2.5mA
- Item Weight: 10 g
Package Includes :
- 1 x DHT-22 Temperature and Humidity Sensor Module
AM2322 digital temperature and humidity sensor are a contain calibration digital composite signal output of the temperature and humidity sensor. Using special technology of collecting the data on temperature and humidity, ensure that the product has very high reliability and excellent long-term stability. Includes a capacitive moisture sensor element and a high precision integrated temperature measuring element, And is connected to a high-performance microprocessor. The product has the excellent quality, super-fast response, strong anti-interference ability, and an extremely high performance-price ratio. AM2322 communication mode using a single bus and standard I2C, two kinds of communication modes. A standard single bus interface, makes the system integration becomes simple and fast. Super small volume, low power consumption, and signal transmission distance of 20 meters make it all kinds of applications of the best choice for even the most demanding applications. In I2C communication mode with a standard communication sequence, the user can be directly hung on the I2C communication bus, no additional wiring, and simple to use. Two kinds of communication modes are used directly output after temperature compensation, humidity, temperature and calibration of CRC and other digital information, users need to the second calculation of digital output, No need to compensate the temperature-humidity, accurate temperature, and humidity information can be got. Two kinds of communication modes are free to switch, users can choose, easy to use, and wide application fields. Product is 4 wire, convenient connection, special packaging format can be provided according to user requirements.
Features :
- Temperature and humidity sensor
- Fully calibrated
- Digital signal output
- Excellent long-term stability
- Low power consumption, high-cost performance
- Standard I2C bus output
- Standard single bus output
Specifications :
- Power supply voltage: 5.5V
- Low level output voltage: 30mV
- High level output voltage: 100%VDD
- Output current: 8mA
- Resolution: 0.024%RH
- Accuracy: ±2 %RH
Package Includes :
- 1 x AM2322 Temperature and Humidity Sensor
- Can Detect Ambient Humidity And Temperature Sensor Dht11
- Humidity Measuring Range: 20%-95% (Range 0-50 Degrees) And Humidity Measurement Error: -5% Temperature Measurement Range: 0-50 Degree Temperature Measurement Error: -2 Operating Voltage 3.3v-5v
- Output Digital Output Fixed Bolts Holes, Is Easy To Install Small Board Pcb Dimensions: 3.2cm*1.4cm
- Power Led (Red) Vcc Add-Ins 3.3v-5v Gnd External Gnd , Do Small-Plate Switch Digital Output Interface Connect Monolithic Integrated Circuit Io Mouth
Specifications :
- Voltage: 3 to 5V power
- Temperature readings: ±2°C
- Current max: 2.5mA
- Item Weight: 10 g
Package Includes :
- 1 x Xcluma DHT11 Digital Relative Humidity & Temperature Sensor Module for Arduino
The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor.
It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out 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, so when using our library, sensor readings can be up to 2 seconds old.
Specifications :
- Voltage: 3 to 5V power
- Temperature readings: ±2°C
- Current max: 2.5mA
- Item Weight: 10 g
Features :
- Low cost, 2.5mA max current use during conversion (while requesting data)
- 3 to 5V power and I/O, Body size 15.5mm x 12mm x 5.5mm
- Good for 20-80% humidity readings with 5% accuracy
- Good for 0-50°C temperature readings ±2°C accuracy
- No more than 1 Hz sampling rate (once every second), 4 pins with Approximate 0.1" spacing
Package Includes :
- 1 x DHT-11 Digital Temperature And Humidity Sensor for Arduino Raspberry Pi
The DHT-11 Digital Temperature And Humidity Sensor is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out 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, so in your code please use sensor reading interval at 2 seconds or more. Compared to the DHT22, this sensor is less precise, less accurate and works in a smaller range of temperature/humidity.
But despite its disadvantages over DHT22, it is smaller and less expensive sensor for temperature and humidity measurement.
Note: This package does not include Arduino board, you have to buy it separately.
Features :
- Low power consumption.
- Relative humidity and temperature measurement
- All calibration, digital output
- Excellent long-term stability
- No additional components
- Long distance signal transmission
- Ultra-low power
- 4-pin package
- Completely interchangeable
- Humidity measuring range: 20%~90%RH(0~50 degree (temperature compensation)
- Temperature measuring range: 0~ 50degree
- Humidity measurement accuracy: ±5.0%RH
- Temperature measurement accuracy: ±2.0degree
Package Includes :
- 1 x DHT-11 Digital Temperature And Humidity Sensor
The enable pin “EN” will disable the device when HI (Vcc) and enable when LO (GND). The onboard jumper can be left open to allow external control of enable/disable of the module. There are two potentiometers on the module one controlling operating frequency (centred at 38 kHz) the other controlling intensity. The detector was designed for 38 kHz and the onboard oscillator circuit is based on a 555 timer.
| Model Number | MPR121 |
| Channels | N/A |
| Input Voltage | 2.5 to 3.6 V DC |
| Response Time | N/A |
| Interface | I2C |
| Color | BLACk |
| Operating Temperature | -20 to 70 deg C |
| Material | Alloy Plastic |
Description : This MPR121 is a capacitive touch sensor controller driven by an I2C interface. The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode The MPR121 also features eight LED driving pins, when these pins are not configured as electrodes, they may be used to drive LEDs. There are four jumpers on the bottom of the board, all of which are set (closed) by default. An address jumper ties the ADD pin to the ground, meaning the default I2C address of the chip will be 0x5A. If you need to change the address of the chip (by shorting ADD to a different pin), make sure you open the jumper first. Jumpers also connect SDA, SCL, and the interrupt pin to 10k pull-up resistors. If you do not require the pull-up resistors you can open the jumpers by cutting the trace connecting them.
Features of MPR121 Breakout V12 Capacitive Touch Sensor Controller Module:
- Capacitive touch sensor controller driven by an I2C interface.
- Can control up to twelve individual electrodes, as well as a simulated thirteenth electrode.
- Eight LED driving pins.
- Connection to the microcontroller /microprocessor via I2C bus.
| Operating Voltage | 2.5 to 3.6VDC |
| Color | Black |
| Material | Alloy Plastic |
| Interface | I2C |
| Length (mm) | 30 |
| Width (mm) | 20 |
| Height (mm) | 2 |
| Weight (gm) | 10 |
| Shipment Weight | 0.010 kg |
| Shipment Dimensions | 5 5 1 cm |
Package Included:
- 1 x MPR121 Breakout V12 Capacitive Touch Sensor Controller Module I2C keyboard
- 1 x 6pin Male Header
- 1 x 12pin Male Header
Product Specification
| Brand | Iduino |
| Model | HC-SR501 |
| Detection Angle | 140 Degree |
| Detection Distance | 8 meter |
| Operating Voltage | 4.5-20 V DC |
| Current Consumption | 60 uA |
| Minimum Order Quantity | 1 Piece |
| Model Name/Number | HC05 |
| Brand | Bluetooth |
| Input Supply voltage (V) | 3.3V-5V |
| Range | 10m |
| Compatible Devices | Arduino uno |
| no of pins | 6 |
- The HC05 bluetooth module is used as UART serial converter module and can easily transfer the UART data through the wireless bluetooth.
- The Bluetooth module has a Frequency: 2.4GHz ISM band, PIO control and comes with an integrated antenna and edge connector.
- The HC-05 bluetooth module can be used in master or slave configuration.
- Package Content: 1 x HC05 Bluetooth Transceiver Module
- You can use it simply for a serial port replacement to establish connection between MCU and GPS, piece to your embedded project and etc.
| Part Number | A3144E |
| Application | Industrial, Sensing & Instrumentation, Medical |
| Output Current | 16 mA |
| Operating Supply Voltage | 2.3V ~ 5.3V |
| Pin Count | 4 Pin |
| Operating Temperature | -40 to 85 deg C |
| Dimension | 32 x 14 mm |
| Screw Hole | 3 mm |
This Hall Sensor Module used Hall Sensor - A3144E. The Hall Sensor measures the Hall Effect, which is a production of a voltage difference across an electrical conductor, transverse to an electric current in the conductor as well as a magnetic field perpendicular to the current. The output of the Hall sensor switches low and turns on when a magnetic field perpendicular to the Hall sensor exceeds the BOP threshold, and it switches high and turns on when the magnetic field disappears. And the comparator circuit that makes the output signal more reliability.
- VCC ↔ 2.3V ~ 5.3V
- GND ↔ power supply ground
- AOUT ↔ MCU.IO (analog output)
- DOUT ↔ MCU.IO (digital output)