![]() ![]() Arduino says these additions allow for more advanced projects.īesides Wi-Fi and Bluetooth, the UNO R4 Wi-Fi has a built-in LED matrix with 96 dots arranged 12x8. Unlike its predecessor, the UNO R4 board family features a USB-C programming port (the R3 has USB-B) and a bunch of new onboard peripherals, such as a 12-bit DAC, CAN BUS, OP AMP, and SWD port. To handle the increased operating voltage, Arduino implemented an enhanced thermal decide and several protections that reduce the risk of damaging the board due to wiring mistakes. ![]() In addition to maintaining the form factor of the UNO R3, the new Arduino boards keep the same 5V operating voltage with a higher 6-24V input voltage. Larger memory (16x) and faster clock speed (3x) make it possible to perform more precise calculations and handle more complex projects. Both boards are powered by the Renesas RA4M1 microcontroller based on ARM Cortex M4 (48MHz), and the onboard memory includes 256KB Flash and 32KB SRAM. ![]()
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