However, if you have an Arduino compatible with a CP210x or FTDI USB to serial converter, you may need to install a driver. You can download the latest CP210x.
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Drivers (If You Need Them)The CH340 has been tested on:. Windows 7/10. Mac OSX. v10.10.5 (Yosemite). v10.11.6 (El Capitan).
v10.13.0 (High Sierra). v10.14.5 (Mojave). Linux. Raspbian Stretch ( release) for the Raspberry Pi. Raspbian Buster (2019-07-10 release) for the Raspberry Pi. Ubuntu v18.04.2, 64-bitThese operating systems have the CDC drivers pre-installed, which means you shouldn't need to install any extra software. However, there are a wide range of operating systems out there, so if you run into driver problems, you can get the archived drivers linked below:.
Driver executable.: Driver v3.4 (2016-09-27).: Driver v1.5 (2018-07-04).: Driver v1.5 (2018-03-18)The CH340 is made by WCH. You can find the latest version of their drivers, but most of their pages are in Mandarin. If you use a Chrome web browser, you should have the option to have the web page translated. Note: You can also search with Spotlight by pressing ⌘ ( Command) + space bar ( Space Bar). Then type 'Terminal' and double-click the search result.If you are still unsure of how to access the Terminal, or read this.You'll need to move to the directory where the.kext files are stored.For, you will need to use this command: language:bashcd /Library/Extensions.For, you will need to use this command: language:bashcd /System/Library/ExtensionsIn this case, we will be using Mac OSX v10.13, so we will need to use the first command. If you have found the file in the path, you will need to run each of the following commands in the CLI/Terminal to remove old CH340 drivers.
In this case, there was only the usbserial.kext file but it does not hurt to run both commands. Make sure to have administrative privileges to ensure that the drivers are removed. Language:bashsudo rm -rf /Library/Extensions/usb.kextsudo rm -rf /Library/Extensions/usbserial.kextCheck if the old drivers were removed in the paths by using the ls command with your respective OS version. You will notice that the.kext file is removed from the respective paths. In this case, the usbserial.kext was removed from Mac OSX High Sierra.
Note for Educators: You will need to obtain administrative privileges from your network or IT administrator in order to install these drivers. Make sure to test the drivers before class and set aside some time with students in the classroom when installing the drivers. Raspbian for Raspberry PiRun the following commands in the CLI/Terminal when using Raspbian on a Raspberry Pi. After updating, the latest CH340 should be installed!
Language:bashsudo apt-get updatesudo apt-get upgradeOther Linux DistributionsHere is a downloadable for Linux. There are some reported cases of serial communication failure when using the factory drivers in Linux.
If you encounter this problem, you can try installing patched drivers. Here are the steps (to run in the command line):. Plug and unplug your CH340 device from the USB port. Type dmesg to see what has happened.
The expected output (shows 'ch341') should have the following in the recent log: xxx ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0 xxx ch341 3-2:1.0: device disconnected. Download the and unzip the files.
Getting Started with Arduino UNO
This document explains how to connect your Uno board to the computer and upload your first sketch.The Arduino Uno is programmed using the Arduino Software (IDE), our Integrated Development Environment common to all our boards and running both online and offline. For more information on how to get started with the Arduino Software visit the Getting Started page.
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Use your Arduino Uno on the Arduino Web IDE
All Arduino boards, including this one, work out-of-the-box on the Arduino Web Editor, no need to install anything.
The Arduino Web Editor is hosted online, therefore it will always be up-to-date with the latest features and support for all boards. Follow this simple guide to start coding on the browser and upload your sketches onto your board.
Use your Arduino Uno on the Arduino Desktop IDE
If you want to program your Arduino Uno while offline you need to install the Arduino Desktop IDEThe Uno is programmed using the Arduino Software (IDE), our Integrated Development Environment common to all our boards. Before you can move on, you must have installed the Arduino Software (IDE) on your PC, as explained in the home page of our Getting Started.
Connect your Uno board with an A B USB cable; sometimes this cable is called a USB printer cable
The USB connection with the PC is necessary to program the board and not just to power it up. The Uno automatically draw power from either the USB or an external power supply. Connect the board to your computer using the USB cable. The green power LED (labelled PWR) should go on. Install the board drivers
If you used the Installer, Windows - from XP up to 10 - will install drivers automatically as soon as you connect your board.
If you downloaded and expanded the Zip package or, for some reason, the board wasn't properly recognized, please follow the procedure below.
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See also: step-by-step screenshots for installing the Uno under Windows XP.
Open your first sketch
Open the LED blink example sketch: File > Examples >01.Basics > Blink.
Select your board type and port
You'll need to select the entry in the Tools > Board menu that corresponds to your Arduino board.
Select the serial device of the board from the Tools | Serial Port menu. This is likely to be COM3 or higher (COM1 and COM2 are usually reserved for hardware serial ports). To find out, you can disconnect your board and re-open the menu; the entry that disappears should be the Arduino board. Reconnect the board and select that serial port. Upload the program
Now, simply click the 'Upload' button in the environment. Wait a few seconds - you should see the RX and TX leds on the board flashing. If the upload is successful, the message 'Done uploading.' will appear in the status bar.
A few seconds after the upload finishes, you should see the pin 13 (L) LED on the board start to blink (in orange). If it does, congratulations! You've gotten Arduino up-and-running. If you have problems, please see the troubleshooting suggestions. Learn more on the Desktop IDE
See this tutorial for a generic guide on the Arduino IDE with a few more infos on the Preferences, the Board Manager, and the Library Manager.
Tutorials
Now that you have set up and programmed your Uno board, you may find inspiration in our Project Hub tutorial platform
or have a look to the tutorial pages that explain how to use the various features of your board.
Last revision 2019/10/16 by SM
The text of the Arduino getting started guide is licensed under aCreative Commons Attribution-ShareAlike 3.0 License. Code samples in the guide are released into the public domain.
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