HC-909 HC-920 Board and port content

content/Software and Downloads/Upload/If-your-board-does-not-appear-in-the-port-menu.md

@@ -6,29 +6,106 @@ Learn what to do if your board does not appear in the port selection menu in Ard
 
 ---
 
-## Check connectivity
+## Check if the computer is detecting a device on the port
 
-* One or more LEDs should be lit when the board is powered.
-* The board needs to be connected to your computer with a data USB cable. A charge-only cable will not work.
-* Make sure the USB cable is not damaged. Test your cable with a different device, or try using a different cable.
-* Remove any connections to digital pins **0 (RX)** and **1 (TX)**.
-* Check that no other pins are unintentionally getting current.
+Two cases should be separated:
+
+* The computer recognizes the board as a device, but not as an Arduino board. The port is listed in the port menu, but the board name is not displayed, and sketches cannot be uploaded ([read this if using the classic Nano](#nano)).
+* The board is not being registered by the computer at all.
+
+To check whether the board is being recognized as a device, follow these steps:
+
+1. Disconnect your board from your computer.
+
+2. Open the port list `Tools > Port`. Some ports may still be listed. Take note of this, and close the menu.
+
+3. Connect your board to your computer.
+
+4. Open `Tools > Port`. The port your board is connected to should now appear as a new port in the list.
+
+Continue with the following steps depending on the result:
+
+* [No device was detected](no-device-recognized)
+* [Incorrect device detected](device-recognized)
+
+---
+
+<h2 id="no-device-recognized">If no device is detected</h2>
+
+### Check board connections
+
+> **Note:** If the port menu is open, you need to close and re-open it for the list to refresh.
+
+The most common reason for the board not being displayed on a port are a failing USB connection.
+
+1. The board needs to be connected to your computer with a data USB cable.
+2. Make sure the USB cable is not damaged. Test your cable with a different device, or try using a different cable.
+3. Try using a different USB port on your computer.
+4. If possible, connect the board directly to your computer instead of a through a hub.
+5. Remove all connections to the board pins, especially to **0(RX)** and **1(TX)**.
+
+### Reset the board
+
+The board may be stuck in a state where it cannot communicate on the port.
+
+1. Find the reset button on the board.
+
+2. Click the button two times in succession.
+
+   ![The reset button on an Arduino UNO](img/UNO-reset-button.png)
+
+3. Check the port menu again.
 
 > **Note:** If the port menu is open, you need to close and re-open it for the list to refresh.
 
-## USB-to-Serial firmware
+---
+
+<h2 id="device-recognized">If a device is detected incorrectly</h2>
+
+### Check the USB-to-Serial firmware
+
+If your board is an **Arduino Uno** (Rev1 or Rev3) or an **Arduino Mega**, the USB-to-Serial firmware may be corrupted.
+
+**Windows:**
+
+1. Open the Device Manager.
+2. Check the _Other Devices_ section.
+
+**macOS:**
+
+1. Open the _System Information_ app.
+2. Check the _Hardware > USB_ section.
 
-Missing or corrupted USB-to-Serial firmware can cause UNO and Mega boards to be recognized as any of the following:
+**Linux:** Use a device manager of your choice, such as **hardinfo** To install hardinfo, open Terminal and run `sudo apt install hardinfo`. Then run `hardinfo` to open and look in _Devices > USB Devices_).
 
-* Unknown Device (Uno, missing on Windows 10)
-* Unknown USB Device (Invalid Device Descriptor) (Uno, corrupted on Windows 10)
-* Composite Device (Uno, missing on macOS)
-* USB Device (Uno, corrupted on macOS)
+<!-- sudo apt-get install hardinfo? -->
+
+Missing or corrupted USB-to-Serial firmware can cause Uno and Mega boards to be recognized as any of the following:
+
+* Unknown Device
+* Unknown USB Device
+* Composite Device
+* USB Device
 * ATmega16u2 DFU
 * Atmega8U2 DFU
 
-Resolve the issue by [flashing the USB-to-Serial firmware in DFU mode](https://support.arduino.cc/hc/en-us/articles/4408887452434-Flash-USB-to-serial-firmware-in-DFU-mode).
+If your board is listed with one of these names you can resolve the issue by [flashing the USB-to-serial firmware in DFU mode](https://support.arduino.cc/hc/en-us/articles/4408887452434-Flash-USB-to-serial-firmware-in-DFU-mode).
+
+<h3 id="nano">If you're using the classic Nano</h3>
+
+Unlike most other boards, the board name will not be displayed for a port where an Arduino Nano is connected.
+
+1. Disconnect your board from your computer.
+
+2. Open the port list `Tools > Port`. Some ports may still be listed. Take note of this, and close the menu.
+
+3. Connect your board to your computer.
+
+4. Open `Tools > Port`. The port your board is connected to should now appear as a new port in the list.
+
+---
 
-## Check the FTDI drivers (Arduino Nano)
+## Still need help?
 
-If you're using the original Arduino Nano, make sure [the FTDI drivers are installed](https://support.arduino.cc/hc/en-us/articles/4411305694610).
+* Visit the [Installation & Troubleshooting category](https://forum.arduino.cc/c/18) in the Arduino forum.
+* [Contact us](https://www.arduino.cc/en/contact-us/)

content/Software and Downloads/Upload/Select-board-and-port-in-Arduino-IDE.md

@@ -0,0 +1,57 @@
+---
+title: "Select board and port in Arduino IDE"
+---
+
+Learn how to select the right board and port in Arduino IDE.
+
+---
+
+## Select board
+
+1. Click on _Tools_ in the menu bar.
+
+2. Find the _Board_ row. The currently selected board will be selected.
+
+   ![The tools menu with the Board row highlighted.](img/tools_menu_highlight_board.png)
+
+3. Hover over the _Board_ row to reveal the installed board packages. These packages contain some popular boards:
+
+   | Package                                      | Boards                                                                      |
+   |----------------------------------------------|-----------------------------------------------------------------------------|
+   | Arduino AVR boards                           | Arduino Uno, Arduino Mega, Arduino Nano                                     |
+   | Arduino SAMD (32-bits ARM Cortex-M0+) Boards | MKR Zero, MKR WiFi 1000, MKR WiFi 1010                                      |
+   | Arduino SAM (32-bits ARM Cortex-M3) Boards   | Arduino Due                                                                 |
+   | Mbed OS Nano boards                          | Arduino Nano 33 BLE, Arduino Nano 33 BLE Sense, Arduino Nano RP2040 Connect |
+
+   If you don't know which package to use, or if it's missing from the list, see [Find and install the board core in Arduino IDE](https://support.arduino.cc/hc/en-us/articles/360016119519-How-to-add-boards-in-the-board-manager).
+
+4. Click on a board to select it.
+
+   ![Selecting a board in Arduino IDE.](img/tools_menu_board_select.png)
+
+> **Note:** If you don't know which package to use, or if it's missing from the list, see Find and install the board core in Arduino IDE.
+<!-- TODO: Add links to article -->
+
+---
+
+## Select port
+
+1. Click on _Tools_ in the menu bar.
+
+2. Find the _Port_ row. The currently selected board will be selected.
+
+   ![The tools menu with the Port row highlighted.](img/tools_menu_highlight_port.png)
+
+3. Hover over the _Port_ to reveal all ports. For Arduino devices, the board name will typically be displayed after the port.
+
+   Port naming varies by system:
+
+   * Windows: `COM3 (Arduino Uno)`
+   * macOS: `/dev/cu.usbmodem14101 (Arduino Uno)`
+   * Linux: `/dev/ttyACM0 (Arduino Uno)`
+
+4. Click on a port to select it.
+
+   ![Selecting a port in Arduino IDE.](img/tools_menu_port_select.png)
+
+   If you don't see your board in the list, see [If your board does not appear in the port menu](https://support.arduino.cc/hc/en-us/articles/4412955149586-If-your-board-does-not-appear-in-the-port-menu).