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  • Garden Soil Moisture Humidity Sensor For Arduino, PIC,AVR ()
    This is a simple to use moisture sensor to test the moisture in soil. When the soil is short of water the module output is high, the opposite condition and the output is low. Use this sensor to assist the automated watering of your plants.
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  • Ultrasonic Distance Sensor ()

    ultrasonic sensor provides an easy method of distance measurement. This sensor is perfect for any number of applications that require you to perform measurements between moving or stationary objects.

    Interfacing to a microcontroller is a snap. A single I/O pin is used to trigger an ultrasonic burst (well above human hearing) and then "listen" for the echo return pulse. The sensor measures the time required for the echo return, and returns this value to the microcontroller as a variable-width pulse via the same I/O pin.

    Application Ideas:

    • Security systems
    • Interactive animated exhibits
    • Parking assistant systems
    • Robotic navigation
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  • Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H ()
    • small, low cost MEMS mic with a range of about 50Hz - 15KHz
    • there are three digital pins:
    • The microphone is a single mono element
    • This I2S MEMS microphone is bottom ported
    • MEMS mics can detect sound and convert it to voltage
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  • GY-4466 Professional MAX4466 High Precision Electret Microphone Amplifier with Adjustable Gain for Arduino ()
    • Features:
      Add an ear to your project with this well-designed electret microphone amplifier.
      This fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, we use the Maxim MAX4466, an op-amp specifically designed for this delicate task.
      The amplifier has excellent power supply noise rejection, so this amplifier sounds really good and isn't nearly as noisy or scratchy as other mic amp breakouts we've tried!
      This breakout is best used for projects such as voice changers, audio recording/sampling, and audio-reactive projects that use FFT. On the back, we include a small trimmer pot to adjust the gain.
      You can set the gain from 25x to 125x. That's down to be about 200mVpp (for normal speaking volume about 6" away) which is good for attaching to something that expects 'line level' input without clipping, or up to about 1Vpp, ideal for reading from a microcontroller ADC.
      The output is rail-to-rail so if the sounds gets loud, the output can go up to 5Vpp!

      Material: electronic element
      Color: purple
      Size: 10x15mm
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  • ICS43432 I2S Digital Microphone ()
    • This is a small (0.4 in x 0.3 in) breakout board for TDK's (Invensense's) ICS43434 bottom-ported, digital microphone that outputs I2S audio as a stream of 24-bit serial words that can be directly read by any microcontroller with an I2S port. No CODEC is required to decode the audio data!

      The ICS43434 has the same low noise and high sensitivity as the ICS43432 but cuts the power usage from 1.1 mA in normal mode to ~500 uA and adds a low-power mode which uses just 230 uA. That's right, the ICS43434 uses only 20% of the power of the ICS43432!

      The pinout is straightforward. The microphones are NOT 5 V tolerant so apply no more than 3.6 V to 3V3 on the board.

      On the Teensy 3.2, CLK connects to Teensy pin 9 (BCLK), WS connects to Teensy pin 23 (LRCLK), and pin 13 is the serial data out.

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  • VL53L0X Time-of-Flight (ToF) Laser Ranging Sensor Breakout 940nm GY-VL53L0XV2 Laser Distance Module I2C IIC 3.3V/5V ()
    The VL53L0X from ST Microelectronics is a time-of-flight ranging system integrated into a compact module. This board is a carrier for the VL53L0X, so we recommend careful reading of the VL53L0X datasheet (1MB pdf) before using this product. 

    The VL53L0 uses ST's FlightSense technology to precisely measure how long it takes for emitted pulses of infrared laser light to reach the nearest object and be reflected back to a detector, so it can be considered a tiny, self-contained lidar system. This time-of-flight (TOF) measurement enables it to accurately determine the absolute distance to a target without the object's reflectance greatly influencing the measurement. The sensor can report distances of up to 2 m (6.6 ft) with 1 mm resolution, but its effective range and accuracy (noise) depend heavily on ambient conditions and target characteristics like reflectance and size, as well as the sensor configuration. (The sensor's accuracy is specified to range from ±3% at best to over ±10% in less optimal conditions.) 

    Ranging measurements are available through the sensor's I⊃2;C (TWI) interface, which is also used to configure sensor settings, and the sensor provides two additional pins: a shutdown input and an interrupt output. 

    The VL53L0X is a great IC, but its small, leadless, LGA package makes it difficult for the typical student or hobbyist to use. It also operates at a recommended voltage of 2.8 V, which can make interfacing difficult for microcontrollers operating at 3.3 V or 5 V. Our breakout board addresses these issues, making it easier to get started using the sensor, while keeping the overall size as small as possible.
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  • Micro Usb to Dip ()
    Micro USB is an international standard, most of smart phone data cable are using this interface, It has a wide range of uses. This module is easily transformed into conventional DIP 2.54mm pin, a great convenience to your application
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  • Raindrops Detection Sensor Module Compatible with Arduino ()
    • The sensor uses the FR-04 high-quality double-sided materials, King Size 5.0 * 4.0CM, and with the surface of the nickel plating treatment, against oxidative, conductivity, superior performance and longevity;
    • Operating voltage 3.3V-5V
    • Sensitivity can be adjusted via potentiometer
    • Small board PCB size: 3.2cm x 1.4cm
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  • TP4056 1A 5V Lithium Battery 18650 Charging Board Module Plates MICRO USB Interface ()
    • Input voltage: 4.5V-5.5V
    • Full charge voltage: 4.2V
    • LEDs: red - charging | green - charged
    • Input interface: mini USB and Solder plates
    • Work temperature: -10ºC to 85ºC
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    PIR sensors are used to detect motion from pets/humanoids from about 20 feet away (possibly works on zombies, not guaranteed). This one has an adjustable delay before firing (approx 2-4 seconds), adjustable sensitivity .

    Dimension: 3.2cm x 2.4cm x 1.8cm (approx)
    Infrared sensor with control circuit board
    The sensitivity and holding time can be adjusted
    • Working Voltage Range: DC 4.5V- 20V
    • Current drain:<60uA
    • Voltage Output: High/Low level signal:3.3V TTL output
    • Detection distance: 3--7M(can be adjusted)
    • Detection range: <140°
    • Delay time: 5-200S(can be adjusted, default 5s +-3%)
    • Blockade time: 2.5 S (default)
    • Trigger: L: Non-repeatable trigger H: Repeat Trigger (default)
    • Work temperature:-20-+80°C
    • Trigger Method: L unrepeatable trigger / H repeatable trigger
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  • Accelerometer-MPU-6050 Module 3 Axis gyro+3 Axis Accelerometer Module ()
    • Chip: MPU-6050
    • Onboard LDO regulator. GY-521 operating voltage: 3V ~ 5V
    • Communication: I2C
    • Built-in 16bit AD converter, 16bit data output
    • Gyroscopes ranges: +/- 250 500 1000 2000 degree/sec
    • Acceleration ranges: +/- 2g, +/- 4g, +/- 8g, +/- 16g
    • Pin Spacing: 2.54mm (0.1in)
    The MPU-6050 is the world’s first integrated 6-axis MotionTracking device that combines a 3-axis gyroscope, 3-axis accelerometer, and a Digital Motion Processor™ (DMP) all in a small 4x4x0.9mm package. With its dedicated I2C sensor bus, it directly accepts inputs from an external 3-axis compass to provide a complete 9-axis MotionFusion™ output. The MPU-6050 MotionTracking device, with its 6-axis integration, on-board MotionFusion™, and run-time calibration firmware, enables manufacturers to eliminate the costly and complex selection, qualification, and system level integration of discrete devices , guaranteeing optimal motion performance for consumers. The MPU-60X0 is also designed to interface with multiple non-inertial digital sensors, such as pressure sensors, on its auxiliary I2C port. The MPU-60X0 is footprint compatible with the MPU-30X0 family.
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  • HX1838 Infrared Remote Control Module IR Receiver Module DIY Kit HX1838 for Arduino Raspberry Pi ()


    1 VCC external 3.3V-5V voltage (can be directly connected with the 5V MCU and 3.3V chip)

       2 GND external GND

       3 IN external microcontroller I/O port, I/O port has been designed with 10K pull-up resistor

       Theoretical test suite from 5-8 meters, but the surrounding environmental factors depends on when you use the actual application and intermediate barrier (e.g. diaphragm, glass, hinder the barrier or other materials), receiving head using HX1838, with a power indicator light, can receive the 38K frequency of any remote control coding data!


       1, sensor using HX1838, high sensitivity

       2, working voltage 5V

       3, output: digital output


       1×Infrared Remote Controller Kit

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  • 10K ohm Thermistor ()

    MF52 10K thermistor (ceramic)

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  • I2C/SPI BMP280 3.3 Digital Barometric Pressure Altitude Sensor Module High Precision Atmospheric Module for Arduino ()
    • Bosch has stepped up their game with their new BMP280 sensor, an environmental sensor with temperature, barometric pressure that is the next generation upgrade to the BMP085/BMP180/BMP183. This sensor is great for all sorts of weather sensing and can even be used in both I2C and SPI!
    • This precision sensor from Bosch is the best low-cost, precision sensing solution for measuring barometric pressure with ±1 hPa absolute accuracy, and temperature with ±1.0°C accuracy. Because pressure changes with altitude, and the pressure measurements are so good, you can also use it as an altimeter with ±1 meter accuracy


            Typical application:

    • Enhancement of GPS navigation
    • e.g.time-to-first-fix improvement,dead-reckoning,slope detection
    • Indoor navigation(floor detection,elevator detection)
    • Outdoor navigation,leisure and sports applications
    • Weather forecast
    • Health care application(e.g. sirometry)
    • Vertical velocity indication(e.g. risk/sink speed)
    • Target devices
    • Handsets such as mobile phones ,table PCs,GPS devices
    • Navigation systems
    • Portable health caredevices
    • Home weather stations
    • Flying toys
    • Watches
    • PCB size:(L*W)1.52* 1.20cm/0.60"*0.47"

    • You can find the complete datasheet here


      This sensor support both I2C or SPI interface. The wiring for this sensor is simple. Note that this sensor require 3.3v, so if you use Arduino Uno, use the 3.3v pin.
      Wiring sensor and Arduino:
    • VCC <----> 3.3v
    • GND <----> GND
    • SCL/SCK <----> A5(Analog pin 5)
    • SDA/SDI <----> A4(Analog pin 4)
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  • GY-273/ GY-271 /HMC5883L 3-Axis Digital Compass Module ()
    The GY-273/GY 271 module is based on the Honeywell HMC5883L IC for low-field magnetic sensing with a digital interface for applications such as lowcost compassing and magnetometry. The HMC5883L includes state-of-theart, high-resolution HMC118X series magneto-resistive sensors plus an ASIC containing amplification, automatic degaussing strap drivers, offset cancellation
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  • Garden Soil Moisture Humidity Sensor For Arduino, PIC,AVR ( Copy ) ()

    This moisture sensor can read the amount of moisture present in the soil surrounding it. It's a low tech sensor, but ideal for monitoring an urban garden, or your pet plant's water level. This is a must have tool for a connected garden!

    This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance).

    It will be helpful to remind you to water your indoor plants or to monitor the soil moisture in your garden.



    • Power supply: 3.3v or 5v
    • Output voltage signal: 0~4.2v
    • Current: 35mA
    • Pin definition:
      • Analog output(Blue wire)
      • GND(Black wire)
      • Power(Red wire)
    • Size: 60x20x5mm
    • Value range:
      • 0 ~300 : dry soil
      • 300~700 : humid soil
      • 700~950 : in water
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  • ACS712 Current Sensor Module for Arduino ()
     Module: ACS712
    - Material: PCB
    - Chipset: ACS712ELC-30A
    - Voltage: 5V
    - +/-30A current measurement
    - Great for DIY project
    Dimensions: 1.22 in x 0.51 in x 0.43 in (3.1 cm x 1.3 cm x 1.1 cm)
    Weight: 0.11 oz (3 g)

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  • DHT11 Digital Temperature Humidity Sensor Module ()
    The sensor module is including resistive humidity sensing component and NTC temperature testing. The compatible digital temperature humidity sensor module is component and connected with 8-byte MCU. This is useful module is fast response, great anti-interference ability and durable.
    - Black panel
    - Sensor including resistive humidity sensing component and NTC temperature testing component and connect with 8-byte MCU
    - Fast response, great anti-interference ability and durable
    - Signal transmission range: 20m
    - Power: 5V
    - Temperature range: 0-50'C
    - Humidity range: 20-90%RH
    Dimensions: 0.98 in x 0.63 in x 0.28 in (2.5 cm x 1.6 cm x 0.7 cm)
    Weight: 0.32 oz (9 g)
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  • Replacement Weather Station Rain Gauge - Tipping Bucket Type 0.3mm Rain / pulse ()

    his tipping bucket rain gauge has a magnetic reed switch that closes momentarily each time the gauge measures 0.011" (0.2794 mm) of rain.

    The 9 foot (3 meter) cable terminates in an RJ11 modular plug, and can easily be extended using a common telephone extension cable.

    The gauge can be easily connected to an Arduino, Rapberry Pi, or any microcontroller. Commonly a pull-up resistor (4.7k ohms is typical) will be used to pull the input pin high, and the other side of the gauge's switch will be connected to ground, pulling the pin low each time the switch closes.


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  • 100K ohm NTC 3950 Thermistors with cable for 3D Printer ()

    100K ohm NTC 3950 Thermistors with cable for 3D Printer

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