The 1st Arduino/Genuino UNO compatible 32-bit ARM Cortex-M0 running at 5V, fully shield compatible from Cytron Technologies!

Yes, ARM is quite famous architecture, it almost consume entire smart phone market. Most of the smart phone you have is ARM based. And now, ARM has also invade the microcontroller sector :) With the 32-bit ARM processor and high processor speed, not to forget the rich peripherals, this ARM Cortex-M0 microcontroller offer 6X the power of 8-bit microcontroller.

We are excited about ARM microcontroller too and we are working hard to integrate it into Arduino Ecosystem. Now it is ready, and we would like you to try it! We have developed the libraries and the json files to include everything you need into Arduino IDE. Nevertheless, it still needs more developers and lovers to nurture it ☺️ So if you are familiar with Arduino and ARM, please grab one, kick start it and work with us to grow the community.

This is CT-ARM, an Arduino UNO R3 compatible 32-bit ARM Cortex-M0 microcontroller board. It is compatible with Genunio UNO R3.

Technical specs

Microcontroller NUC131LD2AE
Architecture 32-Bit ARM Cortex M0
Input voltage (Recommended) 7 - 15V
Input voltage (Limit) 6 - 20V
Operating voltage 5VDC
Clock Speed 50MHz
SRAM size 8KB
Flash size (program memory) 64KB
EEPROM/Data flash 4KB
Digital IO 20
Analog input (ADC) 6
PWM 16
External Interrupts 16
UART 5 + 1
I2C 1
SoftwareSerial All IO pins
Programming Chip FT231X
Programming IDE Arduino IDE
  • Compatible in Arduino IDE
  • Fundamental Arduino Library included
  • Utilising most commonly used USB MicroB cable


Eagle Files


User Manual