The Arduino Uno R4 is to have a Renesas RA4M1 32-bit Arm Cortex-M4 microcontroller, and there are “no plans to discontinue the popular Uno R3” , according to Arduino, which estimates that R4 will ...

To prevent data corruption when using multiple SPI devices on the same bus, care must be taken to ensure that they are only accessed from within the main loop, or from the interrupt routine, never … ...

These pins support SPI communication using the SPI library. LED: 13. There is a built-in LED connected to digital pin 13. When the pin is HIGH value, the LED is on, when the pin is LOW, it’s off. The ...

Arduino will continue to make available the Arduino UNO R3 and provide support to all those Arduino enthusiasts that have and would like to create projects using its 8-bit AVR microcontroller.

Prestissimo Uno+ Arduino dev board with extra I2C UART SPI ADC IO and PWM channels. ... on the Arduino Uno is so great that the “SoftwareSerial” library in included in the Arduino IDE.

1x SPI (D10-D13, ICSP header) 1x I 2 C (A4, A5, SDA, SCL) 1x CAN (D4, D5, needs external transceiver) USB 2.0 full-speed (able to simulate a mouse or keyboard to a host PC). Op-amp Capacitive touch ...