I/O Module Kit Including 7 Sensor I/O Mini Relay 3.96 RS485 DAC ADC I2C GPIO Grove IoT Demoboard for M5

Relay Module (click to buy):

Description:

RELAY

, as its namesake, is a M5Unit that implenments a Relay functions. Relay can be used as an electrically operated switch, uses an electromagnet to mechanically operate a switch,to where it is necessary to control a large power load circuit by a separate low-power signal, like a digital signal output from a mircoprocessor. Up to 30V DC and 220V AC.

There are 3 pins named: ON, OFF, COM. You can program to make COM connect to ON or OFF, just by high and low out put of a digital GPIO.

PRO TO Board (click to buy):

Description:

PRO TO

is a size of universal prototyping board. You can have the total freedom to make your own project as you want it, with prototyping perboards that allows laying out customized circuit to interact with the M5 core GROVE Port.

EXT.IO (click to buy):

Description:

EXT.IO

is a GPIO Expander. With simple I2C commands you can have up to 8 GPIOs.

Integrates PCA9554PW. This 8-bit I/O expander for the two-line bidirectionalbus (I2C) is designed for 2.3-V to 5.5-V VCC Open-Drain Active-Low Interrupt Output operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface.

IIC address: 0x27.

Its difficult to foresee the needs of your project from the start. EXT.IO is the perfect solution for expanding the number of IO. It allows you to add new features, logic,timing and sensing to alrady highly integrated designs.

RS485 (click to buy):

Description:

RS485

is a TTL to RS485 convertor.

RS485 is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems, widely used in industrial field. multipoint systems are supported.