Knob in the form of an encoder with a button that allows you to create a simple user interface. The module sends a digital signal on the SIA and SIB pins, depending on the direction of rotation. It works with voltages from 3 V to 5.3 V.

The sensor has a 5 pin connector with digital outputs SIA, SIB and SW to be attached to the pin of the microcontroller, e.g. Arduino.

Operating principle:
Incremental encoder is a kind of rotation sensor for translating the rotary displacement into a sequential of digital pulse signal. The displacement can be gained by counting the number of the pluses outputted in the course of clockwise or anticlockwise rotation. Comparing with the potentiometer, the rotary counter has no limit for counting. So, there is a reset button provided to
reset the counter to the initial state, restarting at 0

Features: 

1. It detects the clockwise and counterclockwise rotation
2. The number of steps in 360°: 20 steps
3. Button in the knob
4. Module dimensions: 32 x 15 mm

Package Includes:

1 x Rotation Sensor
1 x 5-pin custom connector jumper wire

How would you build a system that could calculate the distance towards an object or detect whether there is motion present? Normally you would use an Ultrasonic or LiDAR Sensor for distance measurement and PIR Motion Sensor for motion detection. What if we told you there is an all-in-one module that could do all these functions more precisely and also perform functions such as velocity detection of moving objects and angle detection of objects. Would you believe it? We were tired of using these traditional modules for motion-sensing applications and wanted to deliver you a better solution, integrating new technologies. Well…For the first time in the history of Grove, we are very excited to bring you a Grove Module based on Radar Technology!

This is the Grove – Doppler Radar.

The Grove – Doppler Radar is based on the BGT24LTR11 Silicon Germanium MMIC which is a 24GHz radar transceiver. It is driven by an XMC1302 MCU based on Arm® Cortex®-M0. This comes in a compact package and runs on very low power, providing high-precision measurements. The high frequency of this module allows for high penetration through objects and therefore this module does not need to be exposed outside when deploying, but rather behind an object. This, in turn, is extremely useful in security systems. Also, this is able to operate in harsh weather conditions such as high temperatures, dust, and rain.

Getting Started with SeeedStudio Grove Doppler Radar (BGT24LTR11)

Pinout:

1 DIV_OUT: Frequency divider output from the BGT24LTR11
2 GND: Ground
3 VCC_5V_EXT: External+5.0V input power supply pin(maximum=5.5V)
4 VTUNE VCO: frequency tuning voltage
5 IFQ_HG BGT24LTR11: Q-channel-analog signal output-second gain stage
6 IFI_HG BGT24LTR11: I-channel-analog signal output-second gain stage
7 PWM_OUT: External user-configurable GPIO with CCU4
8 OUT1: External GPIO pin (user configurable)
9 OUT2: External GPIO pin (user configurable)

Features:

1. The first radar-based sensor in the Grove Family
2. Compact size for easy deployment
3. Light-weight design, suitable for UAV applications
4. Low power consumption for prolonged usage
5. 24GHz Transceiver MMIC for high-precision measurements
6. Fast response using electromagnetic waves
7. ESD protection to avoid system failures caused by ESD strikes
8. High penetration allows it to be deployed behind an object
9. Maintains operation through harsh weather conditions (temperature, light, dust, rain)

Application:

1. Smart Home
2. Smart Building
3. Automatic Door
4. Lighting Control
5. Industrial Robotics
6. Intruder Alarm Systems
7. UAV

Package Includes :

1 x SeeedStudio Grove Doppler Radar (BGT24LTR11)

This is an Arduino compatible alcohol sensor module from DFRobot with a 0-5ppm measuring range, supporting I2C and UART outputs. Aiming at fast and accurate detection of alcohol gas concentration in the air, the sensor is well applicable to the small alcohol concentration measurement in the breathalyzer, smart vehicle, and so on. Based on the electrochemistry principle, this alcohol sensor has been calibrated before the factory. It is characterized by strong anti-interference, high stability, and sensitivity and up to 2 years of service life. The module supports 0.01ppm(10ppb) resolution and 3.3~5.5V wide-range voltage input and works well with mainstream controllers like Arduino, ESP32, and Raspberry Pi. With the easy-to-use Gravity interface and the sample program provided by us, you can conveniently build your alcohol concentration detector using this sensor.

Features:

1. Detected Gas: alcohol.
2. Interfering Gas: benzene(C6H6), toluene(C7H8), acetic acid(CH3COOH), hydrogen sulfide(H2S), carbon monoxide(CO).
3. Factory calibrated, accurate data
4. High sensitivity, low power
5. Stable performance, anti-interference
6. I2C and UART outputs
7. Excellent linear output
8. Long service life
9. Compatible with 3.3~5V controllers
10. Reverse-connection protection

Specifications:

1. Operating Voltage: 3.3～5.5V DC.
2. Power: 0.05W（5V).
3. Signal Output: I2C, UART(0~3V).
4. Response Time: ≤60s.
5. Measuring Range: 0~5ppm.
6. Resolution: ≤0.01ppm（10ppb）.
7. Preheat Time: ≤3min.
8. Recover Time: ≤60s.
9. Operating Temperature: -20～50℃.
10. Operating Humidity: 15～90%RH (No condense).
11. Storage Temperature: 0~25℃.
12. Service Life: >2 years(In the air).
13. Board Dimension: 27mm×37mm/1.06×1.46″.

Packages Includes:

1 x DF Robot Gravity Alcohol Sensor (0-5ppm).

These Radar sensors are used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distances. It operates by transmitting electromagnetic energy toward objects, commonly referred to as targets, and observing the echoes returned from them. The module has a range of up 4 meters and only requires stable 5V to be powered. The user may vary the orientation of the module to get the best coverage.

Applications:

1. Intruder alarms
2. Occupancy Modules
3. Object Detection

Precautions:

1.  The supply current should be greater than 30mA to drive the module, the voltage should be stable and can not have large fluctuations, otherwise, it will trigger a continuous trigger (load lamp may continuous self-trigger or not extinguished)
2.  The product should not be installed next to a large area of the metal body, can not be placed in a fully enclosed metal shell, which will affect the performance of this product or can not be used normally

Note:

1. To increase the range, sensitivity and time turn the preset clockwise, and to reduce turn it anti-clockwise.
2.  The guaranteed sensing range is 4m, we have tested this sensor and found it working up to 20m having the right conditions.

Features and Specifications:

1. Model: HFS-DC06
2. Frequency: 5.8GHz
3. Waveband: ISM band
4. Input Voltage: 5V(Stable)
5. Minimum Input Current: 22 .4mA
6. Output Type: High-level signal
7. Sensing distance: 4 m
8. Sensing Angle: 180 degrees.

Package Includes:

1 x HFS-DC06 5.8G DC5V Microwave Motion Sensor Module for LED Lighting Doppler Effect

AGS10 sensor is a MEMS type ethanol gas sensor with calibrated digital signal output. It uses dedicated digital module acquisition technology and gas sensing technology to ensure that the product has extremely high reliability and excellent long-term stability. 

This MEMS gas sensor has the characteristics of low power consumption, high sensitivity, fast response, high reliability and stability, low cost, and a simple driving circuit. 

Features: 

1. Lifespan >6 years (@25 degrees in clean air)  
2. Sensor category MEMS semiconductor metal oxide sensor 
3. Output unit ppb or grade 
4. Measuring range 0-9999 
5. Typical accuracy (25℃ 50%RH) 25% F.S 
6. Standard test gas ethanol 

Package Includes:

1 x TVOC Sensor Model AGS10

The Grove – AS5600 is a programmable 12-bit high-resolution contactless magnetic rotary position sensor. The Grove – AS5600 can work as a magnetic potentiometer or a magnetic encoder with excellent reliability and durability.

Compared with the traditional potentiometer/encoder, the Grove – AS5600 has significant advantages: high precision, non-contact, no rotation angle limitation. All those advantages make it suitable for non-contact angle measurement applications, such as the robot arm, tripod head, motor closed-loop control, machine tool axis positioning.v

Getting Started With SeeedStudio Grove 12bit Magnetic Rotary Position Sensor (AS5600)

Pinout:

Features: 

1. Non-contact, no rotation angle limitation
2. 12-bit high-resolution, 4096 positions per round
3. Grove I2C, PWM/Analog Output
4. Great flexibility on an angular excursion: Maximum angle programmable from 18° up to 360°

Package Includes :

1 x SeeedStudio Grove 12bit Magnetic Rotary Position Sensor (AS5600)