This is a small 1D/2D codes reader, by using the intelligent image recognition algorithm, it will decode the barcode or 2D code on paper or screen, fast and accurately.

Through the onboard USB and UART interface, it can be directly plugged into a computer, or be easily integrated to kinds of devices due to its small form factor.

Features: 

1. Easy to use, requires no knowledges of image recognition
2. Decodes various common 1D/2D codes such as Barcode, QR code etc.
3. Onboard micro USB and UART serial port, allows to connect with computers or embedded devices
4. Configurable via scanning ‘configuration code’
5. Onboard light source, works in the dark

Package Includes:

1 x Barcode Scanner Module
1 x USB type A plug to micro B plug cable
1 x PH2.0 4Pin

Features:

Useful Links:

Package Includes:

The MAX30102 is an integrated pulse oximeter and heart rate monitor biosensor module. It integrates a red LED and an infrared LED, photodetector, optical components, and low-noise electronic circuitry with ambient light suppression.

It features a 1.8V power supply and a separate 5.0V power supply for internal LEDs for heart rate and blood oxygen acquisition in wearable devices, worn on the fingers, earlobe, and wrist. The standard I2C-compatible communication interface can transmit the collected values to the KL25Z and other microcontrollers for heart rate and blood oxygen calculation

In addition, the chip can also shut down the module through software, the standby current is close to zero, and the power supply is always maintained. Because of its excellent performance, the chip is widely used in the Samsung Galaxy S series mobile phones.

Compared with the previous generation MAX30100, the chip integrates a glass cover to effectively eliminate external and internal light interference and has the best reliable performance.

  Useful link:

For more information such as Pinout  & Programming , see this tutorial .

Main Applications:

1. Medical Monitoring Devices
2. Fitness Assistant Devices
3. Wearable Devices

Features and Specifications:

1. LED peak wavelength: 660nm/880nm
2. LED power supply voltage: 3.3~5V
3. Detection signal type: light reflection signal (PPG)
4. Output signal interface: I2C interface
5. Communication interface voltage: 1.8~3.3V~5V (optional)
6. Board reserved assembly hole size: 0.5 x 8.5mm

Package Includes:

1 x MAX30102 Heart Rate and Pulse Oximeter Sensor Module (Black)

The DFRobot Heart Rate Monitor Sensor is used to measure the electrical activity of the heart. This electrical activity can be charted as an ECG and output as an analog reading. An ECG signal can be extremely noisy so we have included an AD8232 chip which will generate a clear signal from the PR and QT Intervals. Using the Arduino IDE “Serial Plotter” feature,  you are also able to view plotted ECG output on a PC easing the difficulty of using this sensor,  a gravity Interface is adapted to allow plug&play.

The IO expansion shield is the best match for this sound sensor connecting to your Arduino. As this sensor can work at 3.3V which makes it compatible with raspberry pie, intel Edison, joule, and curie.

Features:

1. ECG method, accurate and stable
2. Three electrodes
3. 3.3.3V/5V compatible
4. AD8232 chip which will generate a clear signal from the PR and QT Intervals

Package Includes:

1 x DFRobot Gravity: Analog Heart Rate Monitor Sensor

This EMG sensor is launched by the cooperation of DFRobot and OYMotion, which can detect sEMG to reflect muscle and neural activities of humans. This sensor integrates a filtering circuit and an amplified circuit. It amplifies minimal sEMG within ±1.5mV 1000 times and depresses noises (especially power frequency interference) by differential input and analog filter circuit. The output signal is analog， which takes 1.5V as the reference voltage. The output voltage range is 0~3.0V. The signal strength depends on the intensity of muscle activities. The output signal waveform indicates the muscle activity and contributes to analyzing and researching the sEMG. Specifically, we can use Arduino as a controller to detect muscle activities, e.g. check whether the muscle is tense; the muscle strength, etc.

This is an active induction sensor that can provide high-quality signal collection and it is easy to use. Only simple preparations are needed to apply the module for either static or dynamic areas. The dry electrode is applied to the module and good quality signals are available even without conductive gel.

Features:

1. Metal Dry Electrode: long life, easy to use
2. Differential input, high common mode rejection ratio
3. Low power consumption
4. Single power supply

Specifications:

1. Supply Voltage: +3.3V～5.5V
2. Operating Voltage: +3.0V
3. Detection Range: +/-1.5mV
4. Electrode Connector: PJ-342
5. Module Connector: PH2.0-3P
6. Output Voltage: 0～3.0V
7. Operating Temperature: 0～50℃

Package Includes:

1 x DFRobot Gravity: Analog EMG Sensor by OYMotion

Build an awesome interactive project with this PAJ7620U2 gesture sensor! It is an interactive sensor with 3D gesture recognition that can recognize 13 gestures at most within 20cm. The sensor offers stable performance, fast response and high accuracy, which makes it an excellent choice for interactive applications like non-contact remote controllers, interactive robot, gesture-based game devices, smart lighting management, and so on.

There are two recognition modes for this sensor: fast mode (9 gestures) and slow mode (13 gestures). In fast detection mode, the sensor can recognize 9 gestures: move left, right, up, down, forward, backward, clockwise, counter-clockwise, wave. The slow mode can recognize 4 expanded gestures besides the 9 basic ones: slowly move left and right, slowly move up and down, slowly move forward and backward, move randomly. The unit sampling time can be defined by users in this mode. Moreover, users can customize their own gestures if necessary.

Features:

1. Supports for 13 gestures recognition
2. Supports 2 gesture recognition modes
3. Supports user-defined gestures
4. Low power consumption
5. I2C communication

Specifications:

1. Operating Voltage: 3.3V~5.5 V
2. Operating Current: 3.5mA
3. Communication Port: Gravity-I2C 4Pin
4. I2C Address: 0x73
5. Operating Temperature Range: -40℃~85℃
6. Detection Distance: 3cm-20cm
7. Update Rate: 120Hz
8. Ambient Light Immunity: <100k Lux
9. Product Dimension: 30*22mm / 1.18*0.87inches

Package Includes:

1 x DFRobot Gravity PAJ7620U2 Gesture Sensor