Base Shield provides a simple way to connect with Arduino boards and help you get rid of breadboard and jumper wires. With the 16 on-board Grove Connectors, you can easily connect with over 300 Grove modules! The pinout of Base Shield V2 is the same as Arduino Uno R3.
There are 16 on-board Grove connectors including 4x Analog, 7x Digital, 1x UART, 4x I2C. Apart from the rich Grove connectors on the board, it also features a reset button, a green LED to indicate the power status, ICSP header, a toggle switch and four rows of pins.
The Arduino Leonardo is a microcontroller board based on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs).
Seeeduino V4.2 is an Arduino-compatible board, which is based on Atemga328P MCU. There are so many Arduinos and Arduino-compatible boards in the world, and the Seeeduino V4.2 is one of the best Arduinos, Seeeduino V4.2 is generally more stable, easy-to-us
Seeeduino Lotus is an ATmega328 Microcontroller development board. It is a combination of Seeeduino and Base Shield. It uses Atmel ATMEGA328P-MU and CP2102N. ATMEGA328P-MU is a high performance, low power 8-Bit AVR Microcontroller.
As an expansion board, Base Shield v2 has many Grove connectors, making it convenient for you to use Grove products together. And It is compatible with a series of Arduino products.