Corrections and fixes

arduino · canchebagur · Jul 24, 2025 · Mar 12, 2025 · Mar 13, 2025 · Mar 14, 2025
commit 466674d58b490415f20dbaf8ba2f05774ebc0a6d
diff --git a/...nt/hardware/03.nano/boards/nano-r4/datasheet/assets/Nano_R4-Qwiic-connector.png b/...nt/hardware/03.nano/boards/nano-r4/datasheet/assets/Nano_R4-Qwiic-connector.png
diff --git a/content/hardware/03.nano/boards/nano-r4/datasheet/datasheet.md b/content/hardware/03.nano/boards/nano-r4/datasheet/datasheet.md
@@ -2,42 +2,40 @@
 identifier: ABX00142
 title: Arduino® Nano R4
 type: maker
-author: 
 ---
 
 ![](assets/featured.png)
 
 # Description
 
-The Arduino® Nano R4 is  a Nano form factor board based on the RA4M1 series microcontroller from Renesas (R7FA4M1AB3CFM#HA0), which embeds a 48 MHz Arm® Cortex®-M4 microprocessor. The Nano R4's memory is larger than its predecessors, with 256 kB flash, 32 kB SRAM and 8 kB data memory (EEPROM).
+The Arduino® Nano R4 is a Nano form factor board based on the RA4M1 series microcontroller from Renesas (R7FA4M1AB3CFM#HA0), which embeds a 48 MHz Arm® Cortex®-M4 microprocessor. The Nano R4's memory is larger than its predecessors, with 256 kB flash, 32 kB SRAM and 8 kB data memory (EEPROM).
 
-The Nano R4 board's operating voltage is 5 V, making it hardware compatible with Nano form factor accessories with the same operating voltage. Shields designed for previous Nano revisions are therefore safe to use with this board but are not guaranteed to be software compatible due to the change of microcontroller.
+The Nano R4 board operates at 5 V, making it hardware compatible with Nano form factor accessories with the same operating voltage. Shields designed for previous Nano revisions are therefore safe to use with this board but are not guaranteed to be software compatible due to the change of microcontroller.
 
-Customize the on-board RGB LED to indicate different operating states, making debugging and system monitoring more intuitive.
+Leverage the on-board Qwiic connector for seamless integration with Modulinos, enabling quick and reliable expansion of your project.
 
 # Target areas:
 
 Maker, Beginner, Education
 
 # Contents
-## Application Examples
+## The Board
 
 <div style="text-align:justify;">
-The Nano R4 is a evolution of its predecessors the Nano Classic, being previously based on 8-bit AVR
-microcontrollers. There are thousands of guides, tutorials and books written about the Nano board, where Nano R4 continues its legacy.
+The Nano R4 is an evolution of its predecessor, the Nano Classic, which was previously based on 8-bit AVR microcontrollers. There are thousands of guides, tutorials and books written about the Nano board, where Nano R4 continues its legacy.
+
 The board features the standard 14 digital I/O ports, 6 analog channels, dedicated pins for I2C, SPI and UART
-connections. Compared to its predecessors the board has a much larger memory: 8 times more flash memory (256
-kB) and 16 times more SRAM (32 kB).
+connections. Compared to its predecessors the board has a much larger memory: 8 times more flash memory (256 kB) and 16 times more SRAM (32 kB).
 
 **Effortless Transition:** Move seamlessly from prototyping to production with the familiar RA4M1 microcontroller present already in the UNO R4 family.
 
-**Entry level projects:** If this is your first project within coding and electronics, the Nano R4 is a good fit. It is easy to get started with and has a lot of online documentation (both official + third party).
+**Entry level projects:** If this is your first project within coding and electronics, the Nano R4 is a good fit. It is easy to get started with and has a lot of online documentation (both official + community).
 
-**Easy power management:** the Nano R4 supports input voltages from 6-21 V. Removes the need for additional circuitry required to step down the voltage.
+**Easy power management:** The Nano R4 supports input voltages from 6 to 21 V. It removes the need for additional circuitry required to step down the voltage.
 
-**Enhanced Connectivity:** Features an on-board QWIIC connector for easy integration with a wide range of sensors and peripherals. An extra I2C port at 5V on pins A4 and A5 offers further connectivity options
+**Enhanced Connectivity:** Features an onboard Qwiic connector for easy integration with a wide range of sensors and peripherals. Exposing a new I2C connection apart from the standard one found on A4 and A5 pins. The Qwiic connector makes the Nano R4 compatible with the Modulinos.
 
-**Cross compatibility:** the Nano form factor automatically makes it compatible with hundreds of existing third-party shields and other accessories. 
+**Cross compatibility:** The Nano form factor automatically makes it compatible with hundreds of existing third-party shields and other official accessories.
 </div>
 
 ## Features
@@ -46,12 +44,13 @@ kB) and 16 times more SRAM (32 kB).
 | Feature               | Description                                                                                        |
 | --------------------- | -------------------------------------------------------------------------------------------------- |
 | Microcontroller       | **R7FA4M1AB3CFM#HA0** 32-bit Arm® Cortex®-M4                                                       |
+| Frequency             | 48 MHz                                                                                             |
 | Internal Memory       | 256 kB Flash / 32 kB RAM / 8 kB EEPROM                                                             |
 | USB Connectivity      | USB-C® port for power and data                                                                     |
 | Power                 | Input voltage (VIN): 6-21 V / Power via USB-C® at 5 V                                              |
 | Digital Inputs        | GPIO (x21 - All exposed I/O can be used as digital), PWM (x8)                                      |
 | Analog Inputs         | 14-bit ADC (x8)                                                                                    |
-| Communication         | UART (x1), I2C (x2) (5 V and 3.3 V over QWIIC), SPI (x1), CAN (external transceiver required) (x1) |
+| Communication         | UART (x1), I2C (x2) (5 V and 3.3 V over Qwiic), SPI (x1), CAN (external transceiver required) (x1) |
 | Dimensions            | 18 mm x 45 mm                                                                                      |
 | Operating Temperature | -40 °C to +85 °C                                                                                   |
 
@@ -61,12 +60,12 @@ The Nano R4 is based on the 32-bit RA4M1 series microcontroller, **R7FA4M1AB3CFM
 
 On the Nano R4, the operating voltage is fixed at 5 V to be fully retro compatible with shields, accessories & circuits originally designed for older Nano revisions.
 
-| Component                   | Details                               |
-| --------------------------- | ------------------------------------- |
-| R7FA4M1AB3CFM#HA0 Processor | Arm® Cortex®-M4 core at up to 480 MHz |
-| Flash Memory                | 256 kB of Flash Memory                |
-| Programming Memory          | 32kB of RAM                           |
-| Data Memory                 | 8kB of EEPROM                         |
+| Component                   | Details                              |
+| --------------------------- | ------------------------------------ |
+| R7FA4M1AB3CFM#HA0 Processor | Arm® Cortex®-M4 core at up to 48 MHz |
+| Flash Memory                | 256 kB of Flash Memory               |
+| Programming Memory          | 32kB of RAM                          |
+| Data Memory                 | 8kB of EEPROM                        |
 
 For more technical details on this microcontroller, visit [Renesas - RA4M1 series](https://www.renesas.com/us/en/products/microcontrollers-microprocessors/ra-cortex-m-mcus/ra4m1-32-bit-microcontrollers-48mhz-arm-cortex-m4-and-lcd-controller-and-cap-touch-hmi).
 
@@ -82,9 +81,11 @@ The Nano R4 has a DAC with up to 12-bit resolution attached to the A0 analog pin
 
 ### I2C Connector
 
-The I2C connector SM04B-SRSS-TB(LF)(SN) is connected to a secondary I2C bus on the board. Note that this connector is powered via 3.3 V.
+![Arduino Nano R4 Qwiic Connector](assets/Nano_R4-Qwiic-connector.png)
+
+The I2C Qwiic connector SM04B-SRSS-TB(LF)(SN) is connected to a secondary I2C bus on the board. Note that this connector is powered via 3.3 V.
 
-This connector also shares the following pin connections:
+The standard I2C is accessible through the following pin connections:
 
 **JP1 header**
 - A4
@@ -143,7 +144,7 @@ This connector also shares the following pin connections:
 | 5   | A1        | Analog    | Analog input 1 / OPAMP+                 |
 | 6   | A2        | Analog    | Analog input 2 / OPAMP-                 |
 | 7   | A3        | Analog    | Analog input 3 / AMPOut                 |
-| 8   | A4        | Analog    | Analog input 4 / I²C Serial Datal (SDA) |
+| 8   | A4        | Analog    | Analog input 4 / I²C Serial Data (SDA)  |
 | 9   | A5        | Analog    | Analog input 5 / I²C Serial Clock (SCL) |
 | 10  | A6        | Analog    | Analog input 6                          |
 | 11  | A7        | Analog    | Analog input 7                          |
@@ -182,17 +183,17 @@ This connector also shares the following pin connections:
 
 Power can either be supplied via the VIN pin, or via USB-C® connector. If power is supplied via VIN, the MP2322GQH buck converter steps the voltage down to 5 V.
 
-The 5 V output of the uck converter is connected to a Schottky diode in place for reverse polarity & overvoltage protection respectively.
+The 5 V output of the buck converter is connected to a Schottky diode in place for reverse polarity & overvoltage protection respectively.
 
 Power via USB supplies about ~4.7 V (due to Schottky drop) to the RA4M1 microcontroller.
 
 #### Power Tree
 
-![Arduino Nano R4 power tree.](assets/Nano_R4_Power_Tree.png)
+![Arduino Nano R4 Power Tree](assets/Nano_R4_Power_Tree.png)
 
 ### Pin Voltage
 
-The Nano R4 operates on 5 V, as does all pins on this board except for the **3.3V pin**. This pin draws power from the `OUT` pin on the AP2112K-3.3TRG1.
+The Nano R4 operates at 5 V, as do all pins on this board except for the **Qwiic** connector that works with **3.3 V**. This connector draws power from the AP2112K-3.3TRG1 regulator.
 
 ### Pin Current
 
@@ -231,13 +232,100 @@ Now that you have gone through the basics of what you can do with the board you
 | --------------- | --------------------------------------------- |
 | Company Address | Via Andrea Appiani, 25 Monza, MB, 20900 Italy |
 
+# Certifications
+
+## Declaration of Conformity CE DoC (EU)
+
+We declare under our sole responsibility that the products above are in conformity with the essential requirements of the following EU Directives and therefore qualify for free movement within markets comprising the European Union (EU) and European Economic Area (EEA).
+
+## Declaration of Conformity to EU RoHS & REACH 211 01/19/2021
+
+Arduino boards are in compliance with RoHS 2 Directive 2011/65/EU of the European Parliament and RoHS 3 Directive 2015/863/EU of the Council of 4 June 2015 on the restriction of the use of certain hazardous substances in electrical and electronic equipment.
+
+| **Substance**                          | **Maximum Limit (ppm)** |
+| -------------------------------------- | ----------------------- |
+| Lead (Pb)                              | 1000                    |
+| Cadmium (Cd)                           | 100                     |
+| Mercury (Hg)                           | 1000                    |
+| Hexavalent Chromium (Cr6+)             | 1000                    |
+| Poly Brominated Biphenyls (PBB)        | 1000                    |
+| Poly Brominated Diphenyl ethers (PBDE) | 1000                    |
+| Bis(2-Ethylhexyl) phthalate (DEHP)     | 1000                    |
+| Benzyl butyl phthalate (BBP)           | 1000                    |
+| Dibutyl phthalate (DBP)                | 1000                    |
+| Diisobutyl phthalate (DIBP)            | 1000                    |
+
+Exemptions : No exemptions are claimed.
+
+Arduino Boards are fully compliant with the related requirements of European Union Regulation (EC) 1907 /2006 concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH). We declare none of the SVHCs ([https://echa.europa.eu/web/guest/candidate-list-table](https://echa.europa.eu/web/guest/candidate-list-table)), the Candidate List of Substances of Very High Concern for authorization currently released by ECHA, is present in all products (and also package) in quantities totaling in a concentration equal or above 0.1%. To the best of our knowledge, we also declare that our products do not contain any of the substances listed on the "Authorization List" (Annex XIV of the REACH regulations) and Substances of Very High Concern (SVHC) in any significant amounts as specified by the Annex XVII of Candidate list published by ECHA (European Chemical Agency) 1907 /2006/EC.
+
+## Conflict Minerals Declaration
+
+As a global supplier of electronic and electrical components, Arduino is aware of our obligations with regards to laws and regulations regarding Conflict Minerals, specifically the Dodd-Frank Wall Street Reform and Consumer Protection Act, Section 1502. Arduino does not directly source or process conflict minerals such as Tin, Tantalum, Tungsten, or Gold. Conflict minerals are contained in our products in the form of solder, or as a component in metal alloys. As part of our reasonable due diligence Arduino has contacted component suppliers within our supply chain to verify their continued compliance with the regulations. Based on the information received thus far we declare that our products contain Conflict Minerals sourced from conflict-free areas.
+
+## FCC Caution
+
+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
+
+This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
+
+(1) This device may not cause harmful interference
+
+(2) this device must accept any interference received, including interference that may cause undesired operation.
+
+**FCC RF Radiation Exposure Statement:**
+
+1. This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
+
+2. This equipment complies with RF radiation exposure limits set forth for an uncontrolled environment.
+
+3. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator & your body.
+
+English:
+User manuals for licence-exempt radio apparatus shall contain the following or equivalent notice in a conspicuous location in the user manual or alternatively on the device or both. This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions:
+
+(1) this device may not cause interference
+
+(2) this device must accept any interference, including interference that may cause undesired operation of the device.
+
+French:
+Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :
+
+(1) l’ appareil nedoit pas produire de brouillage
+
+(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.
+
+**IC SAR Warning:**
+
+English
+This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body.
+
+French:
+Lors de l’ installation et de l’ exploitation de ce dispositif, la distance entre le radiateur et le corps est d ’au moins 20 cm.
+
+**Important:** The operating temperature of the EUT can’t exceed 85 ℃ and shouldn’t be lower than -40 ℃.
+
+Hereby, Arduino S.r.l. declares that this product is in compliance with essential requirements and other relevant provisions of Directive 201453/EU. This product is allowed to be used in all EU member states.
+
+## Company Information
+
+| Company name    | Arduino S.r.l.                               |
+| --------------- | -------------------------------------------- |
+| Company Address | Via Andrea Appiani, 25 - 20900 MONZA（Italy) |
+
 ## Reference Documentation
 
-| Reference                              | Link                                                 |
-| -------------------------------------- | ---------------------------------------------------- |
-| Arduino IDE (Desktop)                  | https://www.arduino.cc/en/Main/Software              |
-| Arduino Cloud Editor                   | https://create.arduino.cc/editor                     |
-| Arduino Cloud Editor - Getting Started | https://docs.arduino.cc/arduino-cloud/guides/editor/ |
-| Arduino Project Hub                    | https://projecthub.arduino.cc/                       |
-| Library Reference                      | https://github.com/arduino-libraries/                |
-| Online Store                           | https://store.arduino.cc/                            |
+| Ref                       | Link                                                                                                                                                                                           |
+| ------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| Arduino IDE (Desktop)     | [https://www.arduino.cc/en/Main/Software](https://www.arduino.cc/en/Main/Software)                                                                                                             |
+| Arduino IDE (Cloud)       | [https://create.arduino.cc/editor](https://create.arduino.cc/editor)                                                                                                                           |
+| Cloud IDE Getting Started | [https://docs.arduino.cc/cloud/web-editor/tutorials/getting-started/getting-started-web-editor](https://docs.arduino.cc/cloud/web-editor/tutorials/getting-started/getting-started-web-editor) |
+| Project Hub               | [https://create.arduino.cc/projecthub?by=part&part_id=11332&sort=trending](https://create.arduino.cc/projecthub?by=part&part_id=11332&sort=trending)                                           |
+| Library Reference         | [https://github.com/arduino-libraries/](https://github.com/arduino-libraries/)                                                                                                                 |
+| Online Store              | [https://store.arduino.cc/](https://store.arduino.cc/)                                                                                                                                         |
+
+## Change Log
+
+| Date       | **Revision** | **Changes**   |
+| ---------- | ------------ | ------------- |
+| 31/03/2025 | 1            | First Release |