M5Stack® ENV Unit Kit Including 8 Sensor DHT12 Moisture POT PIR HUB Light RGB IR ENV IoT Development Board Switch GROVE Port I2C COD

Brand: M5Stack

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ID: 1549674
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                    Earth (click to buy):

                    EARTH unit is a Soil Moisture Sensor 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 higher moisture that is in the soil means the better the conductivity between the two so that the sensor will result in a lower resistance, and a higher SIG out.

                    You can read the moisture in soil by ADC. Inside this Unit we put an extra potentiometers to change the measurement ran ge.


                    Angle(click to buy)

                    Description:

                     

                    AN GLE is a rotary switch Unit,simply having a 10K potentiometer inside. This unit can be used for Continuous singal control, such as volume, brightness, or motor speed.

                    A potentiometer is a manually adjustable, variable resistor with three terminals. Two terminals are connected to a resistive element, the third terminal is connected to an adjustable wiper. The position of the wiper determines the output voltage. The out voltage is captured and converted by AD on ESP32 on portB.

                    PIR(click to buy):

                    Description:

                     

                    PIR used to measure infrared (IR) light radiating from objects in its field of view. PIR sensors are commonly called simply "PIR", or sometimes "PID", for "passive infrared detector". The term passive refers to the fact that PIR devices do not radiate energy for detection purposes. They work entirely by detecting infrared radiation emitted by or reflected from objects.

                    This Unit communicates with the M5Core via the GROVE B.

                     HUB(click to buy):

                    Description:

                     

                    HUB is one of the six Units in M5GO, allowed buy separately. This Units is used for GROVE port expanding. Notice: HUB is just a hardware expander, if you are looking for hardware and software(standard protocol) expander like I2C, Single-bus, please check PaHUB or PbHUB. If you connectted two I2C slave devices onto HUB that share the same adress, you will have problem getting I2C data from both.

                    Light(click to buy):

                    Description:

                     

                    LIGHT is a light inten sity sensor unit with an adjustable photoresistor

                    A photoresistor is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light inten sity, and vice versa. It exhibits photoconductivity which make it possiable to detect the varies based on Voltage, and use a AD to convert the digital data.

                    We add some extra work to strengthen the circult, a Dual Differential Comparators LM393, compares the differntial voltage between the photoresistor and the varistor. It could offer larger and accuracy ran ge of light inten sity.

                    RGB(click to buy):

                    Description:

                     

                    RGB is LED Unit include 3 individual LEDs. It is also one of the Unit from M5GO Kit. Each one can display anycolor based on RGB value. One feature of this Unit is extension, which means you can have mutiple of them wired together.

                    This is a very useful piece on STEM class, students can program it to realize some of cool applications, for example a traffic light.

                    IR(click to buy):

                    Description:

                     

                    PIR an pair of infrared photoelectric. Also from M5Go Kit, Contains 1x infrared emitter and 1x receiver.

                    IR remote control is widely used in consumer electronics,it can be used to operate devices such as a television set, DVD player, or other home appliance, from a short distance. Since this unit comes with emitter and receiver, you can practice not only on IR encode but also on IR decode.


                    ENV(click to buy):

                    Description:

                     

                    ENV is a environment sensor, can be used for temperature, humidity, and atmospheric pressure measurement. Build with DHT12 and BMP280.

                    DHT12 is a upgradation version of DHT11 humidity temperature sensor, fully downward compatible, more precise and add I2C interface. BMP280 is an absolute barometric pressure sensor especially designed for mo bile applications, offers highest flexibility to optimize the device regarding power consumption, resolution and filter performance.


                    Package Included:

                    1 x Earth
                    1 x Angle
                    1 x PIR
                    1 x HUB
                    1 x Light
                    1 x RGB
                    1 x IR
                    1 x ENV









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