Seeeduino Cortex-M0+ Microcontroller Development Board ATMEGA SAMD21

Product details Seeeduino Cortex M0 is a SAM D21 Microcontroller development board The Atmel® SMART™ SAM D21 is a series of low power microcontrollers using the 32 bit ARM® Cortex® M0 processor with 256KB Flash and 32KB of SRAM you can consider the Seeeduino Cortex M0 as a combination of Seeeduino and Base Shield Seeeduino Cortex M0 has 14 digital input outputs 10 of which support PWM and 6 analog input outputs 3 Serial Communication Interface a micro USB connector a JST2 0 Li Po connector an ICSP header 12 Grove connectors a reset button Seeeduino Cortex M0 is an upgraded version of Seeeduino V1 1 it replaces a more powerful chip optimizes the circuit layout and the power supply is more stable Because this chip supports direct USB level output there is no need to use a serial port to USB chip like CP2102N Therefore one more hardware serial port is available to the user Feature Compatible with Arduino UNOARM® Cortex® M0 32bit 48MHz microcontroller SAMD21 12 on board Grove connectors14 Digital I O Pins 10 PWM outputs 6 Analog InputsSupport Power Path ManagementSupport micro usb or Li Po battery powered2A maximum charging currentSuitable for low power designAttention All the I O pins are 3 3V please do not input more than 3 3V otherwise the CPU may be damaged The output voltage range of the VSYS pin is 3 5v 4 6v Please don t use the VSYS pin to power board more than 4 6v Documentations Seeeduino Cortex M0 Eagle fileSAM D21 DATASHEETWiki datasheetP