Introduction

Catduino Zero is a 32-bit vision expand board based on the Arduino Uno, it can be compatible to shield and other device, the core controller is SAMD21G18A, compared to the Crduino Uno, Catduino Zero has 10 PWM pins, four more than Arduino Uno.

Technical Data

Microcontroller                SAMD21G18A

Operating Voltage              3.3V

Input Voltage (recommended)    7 to 12V

Input Voltage (limits)            6-20V     

Digital I/O Pins                14 (10 pins support PWM function, the others are UART)

Analog Input Pins              6     

DC Current per I/O Pin          40 mA

DC Current for 3.3V Pin         50mA

Flash Memory                256 KB (SAMD21G18A)

SRAM                       32 KB (SAMD21G18A)

EEPROM                     16 KB (SAMD21G18A)

Clock Speed                  48 MHz

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