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‎content/Hardware Support/UNO/Whats-the-difference-between-UNO-R3-and-UNO-R4-boards.md‎

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@@ -62,32 +62,32 @@ Yes, if your sketch was developed using the [Arduino API](https://docs.arduino.c
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## Technical specifications comparison {#tech-specs}
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| Feature | Arduino UNO R3 | Arduino UNO R4 Minima | Arduino UNO R4 WiFi |
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|--------------------------------|:--------------------------------:|:-----------------------------:|:-----------------------------:|
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| Microcontroller | ATmega328P | Renesas RA4M1 (Arm Cortex-M4) | Renesas RA4M1 (Arm Cortex-M4) |
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| Wi-Fi/Bluetooth LE | No | No | ESP32-S3-MINI-1-N8 |
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| USB Connector | USB-B | USB-C | USB-C |
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| Mouse/Keyboard Emulation (HID) | No | Yes | Yes |
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| Real-Time Clock (RTC) | No | Yes | Yes |
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| Built-in LED Pin | 13 | No | No |
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| Digital I/O Pins | 14 | 14 | 14 |
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| Analog input pins | 6 | 6 | 6 |
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| PWM pins | 6 | 6 | 6 |
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| DAC | No | 1 (12-bit) | 1 (12-bit) |
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| External interrupts | No | 2,3 | 2,3 |
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| UART | Yes | Yes | Yes |
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| I2C | Yes | Yes | Yes |
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| SPI | Yes | Yes | Yes |
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| CAN | No | Yes | Yes |
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| Qwiic connector | No | No | Yes |
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| OFF pin | No | No | Yes |
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| VRTC pin | No | No | Yes |
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| LED Matrix | No | No | 12x8 (96 red LEDs) |
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| Operating voltage | 5V | 5V | 5V |
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| Input voltage (VIN) | 7-12V | 6-24V | 6-24V |
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| DC Current per I/O Pin | 20mA | 8mA | 8mA |
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| Clock speed | 16MHz | 48MHz | 48MHz |
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| Memory | 2kB SRAM, 32kB FLASH, 1kB EEPROM | 256kB Flash, 32kB RAM | 256kB Flash, 32kB RAM |
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| MCU Resolution | 8-bit | 32-bit | 32-bit |
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| Feature | Arduino UNO R3 | Arduino UNO R4 Minima | Arduino UNO R4 WiFi |
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|--------------------------|:--------------------------------:|:-----------------------------:|:-----------------------------:|
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| Microcontroller | ATmega328P | Renesas RA4M1 (Arm Cortex-M4) | Renesas RA4M1 (Arm Cortex-M4) |
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| Wi-Fi/Bluetooth LE | No | No | ESP32-S3-MINI-1-N8 |
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| USB Connector | USB-B | USB-C | USB-C |
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| Mouse/Keyboard Emulation | No | Yes | Yes |
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| Real-Time Clock | No | Yes | Yes |
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| Built-in LED Pin | 13 | No | No |
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| Digital I/O Pins | 14 | 14 | 14 |
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| Analog input pins | 6 | 6 | 6 |
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| PWM pins | 6 | 6 | 6 |
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| DAC | No | 1 (12-bit) | 1 (12-bit) |
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| External interrupts | No | 2,3 | 2,3 |
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| UART | Yes | Yes | Yes |
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| I2C | Yes | Yes | Yes |
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| SPI | Yes | Yes | Yes |
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| CAN | No | Yes | Yes |
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| Qwiic connector | No | No | Yes |
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| OFF pin | No | No | Yes |
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| VRTC pin | No | No | Yes |
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| LED Matrix | No | No | 12x8 (96 red LEDs) |
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| Operating voltage | 5V | 5V | 5V |
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| Input voltage | 7-12V | 6-24V | 6-24V |
88+
| DC Current per I/O Pin | 20mA | 8mA | 8mA |
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| Clock speed | 16MHz | 48MHz | 48MHz |
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| Memory | 2kB SRAM, 32kB FLASH, 1kB EEPROM | 256kB Flash, 32kB RAM | 256kB Flash, 32kB RAM |
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| MCU Resolution | 8-bit | 32-bit | 32-bit |
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