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[PXCT-667] Updated Uno R4 WiFi datasheet I2C information #2452

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Apr 10, 2025
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[PXCT-667] Updated Uno R4 WiFi datasheet I2C information #2452

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b6152b0
Fixed information about I2C
BenjaminDannegard Apr 9, 2025
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BenjaminDannegard Apr 9, 2025
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Update content/hardware/02.hero/boards/uno-r4-wifi/datasheet/datashee…
BenjaminDannegard Apr 10, 2025
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Update content/hardware/02.hero/boards/uno-r4-wifi/datasheet/datashee…
BenjaminDannegard Apr 10, 2025
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Update content/hardware/02.hero/boards/uno-r4-wifi/datasheet/datashee…
BenjaminDannegard Apr 10, 2025
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Update content/hardware/02.hero/boards/uno-r4-wifi/datasheet/datashee…
BenjaminDannegard Apr 10, 2025
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Update content/hardware/02.hero/boards/uno-r4-wifi/datasheet/datashee…
BenjaminDannegard Apr 10, 2025
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BenjaminDannegard Apr 10, 2025
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13 changes: 7 additions & 6 deletions content/hardware/02.hero/boards/uno-r4-wifi/datasheet/datasheet.md
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Expand Up @@ -43,7 +43,7 @@ The **R7FA4M1AB3CFM#AA0**, often referred to as RA4M1 in this datasheet, is the
* **Communication**
* 1x UART (pin D0, D1)
* 1x SPI (pin D10-D13, ICSP header)
* 1x I2C (pin A4, A5, SDA, SCL)
* 2x I2C (pin A4, A5, SDA, SCL), (QWIIC connector)
* 1x CAN (pin D4, D5, external transceiver is required)

See the full datasheet for the R7FA4M1AB3CFM#AA0 in the link below:
Expand Down Expand Up @@ -127,7 +127,7 @@ In addition, it features an ESP32-S3 module for Wi-Fi® & Bluetooth® connectivi
| JDIGITAL | Digital input/output headers |
| JOFF | OFF, VRTC header |
| J1 | CX90B-16P USB-C® connector |
| J2 | SM04B-SRSS-TB(LF)(SN) I2C connector |
| J2 | QWIIC Connector for I2C communication protocol |
| J3 | ICSP header (SPI) |
| J5 | DC Jack |
| J6 | ESP header |
Expand Down Expand Up @@ -232,11 +232,11 @@ The UNO R4 WiFi has a DAC with up to 12-bit resolution attached to the A0 analog

The DAC can be used for signal generation for e.g. audio applications, like generating and altering sawtooth waves.

## I2C Connector
## Qwiic 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.
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.

![I2C connector.](assets/i2c-connector.png)
![I2C qwiic connector.](assets/i2c-connector.png)

This connector also shares the following pin connections:

Expand Down Expand Up @@ -491,6 +491,7 @@ This equipment contains a radio transmitter module with model approval code: CMI

| Date | **Revision** | **Changes** |
| ---------- | ------------ | ------------------ |
| 09/04/2025 | 7 | Fixed I2C information |
| 05/09/2024 | 6 | Cloud Editor updated from Web Editor |
| 03/07/2024 | 5 | Update Assets |
| 19/09/2023 | 4 | Update FCC section |
Expand Down Expand Up @@ -538,7 +539,7 @@ RA4M1的工作电压固定为5V，而ESP32-S3模块为3.3V。这两个MCU之间
* **通信**
* 1个UART（引脚D0、D1）
* 1个SPI（引脚D10-D13，ICSP针座）
* 1个I2C（引脚A4、A5、SDA、SCL）
* 2个I2C（引脚A4、A5、SDA、SCL, (QWIIC connector)
* 1个CAN（引脚D4、D5，需要外部收发器）

请通过以下链接查看 R7FA4M1AB3CFM#AA0 的完整数据表：
Expand Down
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