The Earth Unit is a Sensor for measuring Humidity in Soil or Similar Materials. The Soil Moisture Sensor is quite simple to use. The two large stake-type sensors act as probes for the sensor, acting together as a variable resistance. The higher the moisture in the soil, the better the conductivity between the two, so that the sensor results in less resistance and higher GIS output.

You can read the moisture in the soil through ADC. Within this unit, there is an extra potentiometer to change the measurement range.

PuppyC is a programmable four-legged robot base compatible with the M5StickC. It contains the STM32F030F4 Microcontroller, four 5G90 micro servos, a battery holder and an independent switch. The PuppyC base needs to be used in conjunction with the M5StickC controller. After programming StickC, it communicates with PuppyC through the I2C protocol to control the steering movement.

IR is an Infrared Photoelectric Sensor. The infrared remote control is widely used in consumer electronics; it can be used to operate devices such as televisions, DVD players or other household appliances within a short distance. Since this unit comes with a transmitter and receiver, you can practice not only IR encoding, but also IR decoding.

It is a Kit with 6 Internal M5 Units (ENV, IR, RGB, PIR, ANGLE, HUB). Like another M5Stack Development Kit, MSGO is powered by ESP32.

Every M5stack development kit can be programmed using Arduino IDE, WebIDE UlFlow, Micropython and Blockly, simplifying the development process for those who require a joint hardware and software solution, M5stack not only has wide-reaching IoT applications on industry, at home, but also enables students to learn to code.

The Plus is an enhanced M5 Module that comes with Lipo battery (500mAh), gear potentiometer, IR transmitter, port PORT B (GPIO port) extended, port C (UART port) of the MS core and a microphone solder block. Equipped with MEGA328, it can be a major upgrade of hardware resources, adding PLUS to your work.

Communication Protocol: IIC (0x62).

This is a wireless communication module, integrated with the M8321 NB-IoT module, which provides TD-LTE / FDD-LTE / WCDMA / TD-SCDMA / GSM / GPRS / EDGE frequency band and LCC + LGA package type. It integrated abundant Internet protocols, standard field interface and functions, supported WindowsXP, Windows7, Windows8, Windows10, Linux and Android USB driver.

In the layout of the LTE-4G module, more hardware resources were added, reserved lanes for speakers, 3 LEDs, USB interface, double antenna allowed.

Angle is a 10K potentiometer that can be used for continuous control, such as volume, brightness or engine speed. A potentiometer is a manually adjustable variable resistance with three terminals. Two terminals are connected to a resistive element, the third terminal is connected to an adjustable cleaner. The position of the wiper determines the output voltage. The output voltage is captured and converted by AD in ESP32 on portB.

The MFRC522 operates in the frequency range of 13.56 MHz and uses the principle of modulation and demodulation to interact with the RF proximity card. This unit can perform the function of the card reading and writing device, to identify and record various information on the card, to encode and authorize an RF card.

The M5Stick-C is a Mini M5Stack, powered by ESP32, It is a portable IoT development board, easy to use and open source.

What can this do? This small block is able to realize your idea, illuminate your creativity and help with the prototyping of the IoT in a very short time. This takes away many of the pains of the development process.

Finger is a fingerprint sensor that makes fingerprint verification super simple.

The Uart protocol, compact size and ultra low power consumption make the use of MSStack series products very attractive. It performs fast fingerprint matching with the highest level of security and the ideal convenience of the user. You can program to set the level of comparison of the fingerprint recognition and the different security level. If you've ever thought about protecting your project with biometrics, don't forget to include this MSunit Finger.

This unit communicates with the M5Core by UART protocol connected via PORTC.

The M5Stick-C is an ESP5 powered M5Stack mini. It's a portable, easy-to-use, open source IoT development board.