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Commit b8acd4e

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karlsoderbyjhansson-ardkateryna-lukina
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Apply suggestions from code review
Co-authored-by: Josefine Hansson <66409231+jhansson-ard@users.noreply.github.com> Co-authored-by: Kateryna Lukina <94372596+kateryna-lukina@users.noreply.github.com>
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‎content/hardware/02.hero/boards/uno-r4-minima/essentials.md‎

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</EssentialElement>
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<EssentialElement title="SPI" type="library" link="https://www.arduino.cc/en/reference/SPI">
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The SPI library allows you to communicate with SPI devices, with the Arduino as the controller device.
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The SPI library allows you to communicate with SPI devices, with the Arduino board as the controller device.
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</EssentialElement>
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<EssentialElement title="Servo" type="library" link="https://www.arduino.cc/reference/en/libraries/servo/">

‎content/hardware/02.hero/boards/uno-r4-minima/features.md‎

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<FeatureDescription>
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The Arduino UNO R4 Minima is a 32-bit microcontroller based on the Renesas RA4M1 (Arm Cortex®-M4) with an operating voltage of 5V! It has 14 digital I/O, 6 analog inputs with up to 14-bit resolution, a clock speed of 48 MHz, and 32 kB SRAM, 256 kB flash memory & 8 kB of EEPROM.
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The Arduino UNO R4 Minima is a 32-bit microcontroller based on the Renesas RA4M1 (Arm® Cortex®-M4) with an operating voltage of 5 V. It has 14 digital I/O, 6 analog inputs with up to 14-bit resolution, a clock speed of 48 MHz, and 32 kB SRAM, 256 kB flash memory & 8 kB of EEPROM.
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This boards also features a 12-bit DAC, RTC and can emulate an HID.
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</Feature>
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<Feature title="USB-C" image="usb">
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The UNO R4 Minima is the first UNO to feature a USB-C connector.
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The UNO R4 Minima is the first UNO to feature a USB-C® connector.
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</Feature>
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<Feature title="Real-Time Clock (RTC)" image="mcu">
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<FeatureLink title="Documentation" url="/tutorials/uno-r4-minima/usb-hid"/>
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</Feature>
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<Feature title="Power up to 24V" image="power">
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Power your UNO R4 WiFi board through the VIN Pin with any voltage between 6-24V.
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<Feature title="Power up to 24 V" image="power">
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Power your UNO R4 Minima board through the VIN Pin with any voltage between 6-24 V.
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</Feature>
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<Feature title="CAN Bus" image="communication">

‎content/hardware/02.hero/boards/uno-r4-minima/product.md‎

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The Arduino UNO R4 Minima is the first UNO board featuring a 32-bit microcontroller. With a new architecture based on the RA4M1 MCU from [Renesas](https://www.renesas.com/us/en), it is faster with its 48 MHz clock, has a lot more memory and brings new features such as a built-in RTC, DAC, HID support, CAN bus, JTAG connector and more.
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The board still features the classic barrel jack plug, with an improved voltage input range (6-24V), but replaces the old USB connector with a USB-C type connector. The UNO R4 Minima remains on a 5V operating voltage, making it hardware compatible with shields, accessories or circuits designed for older UNO revisions.
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The board still features the classic barrel jack plug, with an improved voltage input range (6-24 V), but replaces the old USB connector with a USB-C® type connector. The UNO R4 Minima remains on a 5 V operating voltage, making it hardware compatible with shields, accessories or circuits designed for older UNO revisions.

‎content/hardware/02.hero/boards/uno-r4-minima/tech-specs.yml‎

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SKU: ABX00080
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Microcontroller: Renesas RA4M1 (Arm® Cortex®-M4)
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USB:
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USB-C: Programming Port
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USB-C®: Programming Port
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Pins:
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Digital I/O Pins: 14
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Analog input pins: 6
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SPI: Yes, 1x
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CAN: Yes 1 CAN Bus
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Power:
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Circuit operating voltage: 5V
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Input voltage (VIN): 6-24V
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Circuit operating voltage: 5 V
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Input voltage (VIN): 6-24 V
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DC Current per I/O Pin: 8 mA
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Clock speed:
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Main core: 48 MHz
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Memory:
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RA4M1: 256kB Flash, 32kB RAM
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RA4M1: 256 kB Flash, 32 kB RAM
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Dimensions:
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Width: 68.85 mm
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Length: 53.34 mm

‎content/hardware/02.hero/boards/uno-r4-minima/tutorials/adc-resolution/adc-resolution.md‎

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## Hardware & Software Needed
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software)).
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- [Arduino R4 Minima](/hardware/uno-r4-minima).
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software))
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- [Arduino R4 Minima](/hardware/uno-r4-minima)
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- [Arduino Renesas Core](https://github.com/bcmi-labs/ArduinoCore-renesas)
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## Analog-to-Digital Converter (ADC)

‎content/hardware/02.hero/boards/uno-r4-minima/tutorials/can/can.md‎

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The goals of this tutorial are:
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- Get an overview of the built-in CAN library
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- Learn how to connect a board to a CAN transceiver module
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- Send a CAN message between two Arduinos
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- Send a CAN message between two Arduino boards
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## Hardware & Software Needed
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software)).
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- [Arduino R4 Minima](/hardware/uno-r4-minima).
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software))
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- [Arduino R4 Minima](/hardware/uno-r4-minima)
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- [Arduino Renesas Core](https://github.com/bcmi-labs/ArduinoCore-renesas)
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- CAN transceiver module\*
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- Jumper wires
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| ------------- | --------------- |
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| D5 (CANRX0) | CANRX |
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| D4 (CANTX0) | CANTX |
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| 5V | VIN/VCC/5V |
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| 5 V | VIN/VCC/5 V |
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| GND | GND |
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Then, between the CAN transceivers, connect the following:

‎content/hardware/02.hero/boards/uno-r4-minima/tutorials/eeprom/eeprom.md‎

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## Hardware & Software Needed
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software)).
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- [Arduino R4 Minima](/hardware/uno-r4-minima).
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software))
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- [Arduino R4 Minima](/hardware/uno-r4-minima)
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- [Arduino Renesas Core](https://github.com/bcmi-labs/ArduinoCore-renesas)
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## EEPROM

‎content/hardware/02.hero/boards/uno-r4-minima/tutorials/minima-getting-started/minima-getting-started.md‎

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---
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title: Getting Started with UNO R4 Minima
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title: Getting Started with Arduino UNO R4 Minima
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description: A step-by-step guide to install the board package needed for the UNO R4 Minima board.
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author: Hannes Siebeneicher
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tags: [UNO R4 Minima, Installation, IDE]

‎content/hardware/02.hero/boards/uno-r4-minima/tutorials/rtc/rtc.md‎

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---
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title: 'Arduino UNO R4 Minima Real Time Clock'
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title: 'Arduino UNO R4 Minima Real-time Clock'
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description: 'Learn how to access the real-time clock (RTC) on the UNO R4 Minima.'
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tags:
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- RTC
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## Hardware & Software Needed
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software)).
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- [Arduino R4 Minima](/hardware/uno-r4-minima).
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- Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software))
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- [Arduino R4 Minima](/hardware/uno-r4-minima)
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- [Arduino Renesas Core](https://github.com/bcmi-labs/ArduinoCore-renesas)
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## Real-Time Clock (RTC)

‎content/hardware/02.hero/boards/uno-r4-minima/tutorials/shield-compatibility/shield-compatibility.md‎

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| Name | Compatible | Libraries |
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| ------------- | ---------- | ----------- |
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| Arduino 4 Relays Shield | Yes | None |
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| Ethernet shield | Yes | [Ethernet.h](https://github.com/arduino-libraries/Ethernet) |
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| Motor shield | Yes | None |
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| 9 axis motion shield | Yes | [Adafruit_BNO055](https://github.com/adafruit/Adafruit_BNO055) |
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| Arduino Ethernet Shield Rev2 | Yes | [Ethernet.h](https://github.com/arduino-libraries/Ethernet) |
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| Arduino Motor Shield Rev3 | Yes | None |
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| Arduino 9 Axis Motion Shield | Yes | [Arduino_NineAxesMotion](https://github.com/arduino-libraries/Arduino_NineAxesMotion) |
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| Arduino Education Shield | Yes | [EducationShield.h](https://github.com/arduino-libraries/EducationShield) |
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### Third-Party Shields

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