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Oct 27, 2025
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Added VCOIN and VBAT descriptions #2689

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3f2ba22
Update getting-started.md
xingrgx Oct 26, 2025
0ef3266
Merge pull request #2688 from xingrgx/xingrgx/learn/markdown-syntax
jhansson-ard Oct 27, 2025
558b262
Added VCOIN and VBAT descriptions
ColpittsIC Oct 27, 2025
9d5db4c
Update content/hardware/02.uno/boards/uno-q/datasheet/datasheet.md
TaddyHC Oct 27, 2025
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6 changes: 3 additions & 3 deletions content/hardware/02.uno/boards/uno-q/datasheet/datasheet.md
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Expand Up @@ -181,7 +181,7 @@ The PMIC's L15A LDO provides the 1.8 V rail (<code>VREG_L15A_1P8V</code>) and po
From <code>5V_SYS</code>, a buck generates the <code>PWR_3P8V (3.8 V)</code> reserved for system design and future features.
A second buck generates <code>PWR_3P3V</code> for the STM32U585, the ANX7625 (3.3 V rails), the Wi-Fi® 3.3 V domain, and the 3.3 V header pins.</p>

<p style="text-align: justify;">A <em>protected P-channel MOSFET</em> (<code>Q2801</code>) can source USB <code>VBUS</code> from <code>5V_SYS</code> when the board operates as a USB host/OTG. The <code>VCOIN</code> powers only the real-time clock and does not power the Linux or MCU domains.</p>
<p style="text-align: justify;">A <em>protected P-channel MOSFET</em> (<code>Q2801</code>) can source USB <code>VBUS</code> from <code>5V_SYS</code> when the board operates as a USB host/OTG. The <code>VCOIN</code> powers only the real-time clock of the PMIC and does not power the Linux or MCU domains.The <code>VBAT</code> powers the real-time clock of the <code>MCU</code>. </p>

![Arduino UNO Q Power Tree](assets/ABX00162-ABX00173_power_tree.png)

Expand Down Expand Up @@ -336,8 +336,8 @@ JMISC handles both domains: 1.8 V MPU lines sit alongside 3.3 V MCU signals (e.g
| 56 | +5V_USB (OUT) | - | Power | 5 V power out |
| 57 | +1V8 (IN) | - | Power | 1.8 V rail in |
| 58 | GND | - | Power | Ground |
| 59 | VCOIN (IN) | - | Power | System voltage (reserved) |
| 60 | VBAT (IN) | - | Power | System voltage (reserved) |
| 59 | VCOIN (IN) | - | Power | System voltage (PMIC RTC) |
| 60 | VBAT (IN) | - | Power | System voltage (MCU RTC) |

<div style="background-color: rgba(0, 170, 228, 0.2); border-left: 6px solid rgba(0, 120, 180, 1); margin: 20px 0; padding: 15px;">
Note: SoC GPIO lines on JMISC are interface-dedicated (not maker GPIO). MCU are at 3.3 V logic, MPU are at 1.8 V logic, and audio/mic are analog.
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2 changes: 1 addition & 1 deletion ...earn/01.starting-guide/01.getting-started-with-arduino-tools/getting-started.md
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Expand Up @@ -9,7 +9,7 @@ Welcome to Arduino! Before you start controlling the world around you, you'll ne

## IDE

An Integrated Development Environment (IDE) is a software that allows you to write code and upload it to your Arduino hardware. We have our own [Arduino Software (IDE)]([https://www.arduino.cc/en/software](https://www.arduino.cc/en/software) application available for Windows, macOS and Linux users. Besides the convenient code editing functions, the Arduino Software (IDE) is equipped with a list of libraries that provide extra functionality for use in sketches, making it easier for you to connect sensors, displays, modules, etc.
An Integrated Development Environment (IDE) is a software that allows you to write code and upload it to your Arduino hardware. We have our own [Arduino Software (IDE)](https://www.arduino.cc/en/software) application available for Windows, macOS and Linux users. Besides the convenient code editing functions, the Arduino Software (IDE) is equipped with a list of libraries that provide extra functionality for use in sketches, making it easier for you to connect sensors, displays, modules, etc.

## Arduino Tools

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