You can visit the next section to learn more about the CH and why you need the drivers, or you can skip straight to the operating system of your choice!
There are a few variants of the CH The CH G requires an external crystal oscillator to function while the CH C includes a built-in crystal oscillator. These 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:.
You can find the latest version of their drivers in their English translated website. If you have the older CH drivers installed, you may need to update them. Below are the instructions for doing so on each of the tested operating systems.
Download and run the executable. Windows CH Driver Installation. To verify that your driver is working, you should see a difference in the following pictures after plugging the CH to a USB port.
Using the search on Windows 10 to look for the device manager. Depending on your computer, the COM port may show up as a different number. Click to enlarge. Take note of the Serial Ports available. Click on somewhere else on the screen for the menu to refresh itself. A new COM port should pop up. Feel free to click on the COM port to select if you are uploading code to a microcontroller. Depending on your computer, the COM port may show a different number.
You can also verify if the USB-to-serial converter is working by doing a serial loop back test or echo test. If you are using the breakout board, you can add a jumper between the Tx and Rx to try and echo a character in a terminal program. For more information, try checking out the Hardware Test for the serial basic hookup guide. For Mac OSX v To check to see if the CH driver is in the correct path, use the following command to list the contents of the folder.
To look for CH driver files i. In this case, there was only the usbserial. Make sure to have administrative privileges to ensure that the drivers are removed. Check if the old drivers were removed in the paths by using the ls command with your respective OS version. In this case, the usbserial. Download and extract the folder. You'll need to restart your computer for the changes to take effect. A list of devices connected to your Mac's COM ports will be displayed as a result.
Assuming that the CH is not connected to your computer, you should see something similar to the image below. Check for the following changes your board may show up under a different device name.
After updating, the latest CH should be installed! 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 as explained in this forum post. Here are the steps to run in the command line :.
Depending on your root permissions, you may need to configure the serial port with the following two commands. Depending on the Linux flavor that you have, the Ports may not open to display any serial ports. Take note of the Serial Ports available if it opens up.
We have had a few reports on Windows 10 where the driver will automatically install and the board will show up under a new COM port as USB-Serial CH , but with a different device name. However, the board cannot be accessed on the Arduino IDE.
Others have had issues where the installation process hangs. Based on the customer experiences, this might be specific to the manufacturer and are usually isolated cases. If you installed the drivers for the CH on your computer but have issues connecting via serial terminal or uploading code using the Arduino IDE, there may be an issue with your user settings preventing you from using the CH In this case, the error appeared on a Linux when trying to upload code due to the drivers not being installed and the root permissions.
Make sure to check your configuration settings and ensure that the serial port for the CH is enabled for your OS. You may also need to reinstall the drivers for your operating system.
Certain USB cables are for power only and may not have the data lines available. Try checking your USB cable and ensure that the data lines are intact. If you are uploading to certain boards like the Apollo3 on the Artemis development boards with fast baud rates, there are some platforms Linux flavors where the standard CH USB to serial drivers don't operate well at speeds higher than So if you run into upload problems, consider reducing the upload speed.
For more information about upload issues, see this forum post and consider upgrading with these drivers for Mac OSX or these for Linux. Now that you've successfully got your CH up and running, it's time to incorporate it into your own project!
USB-to-serial converters like the CH are great for uploading code to a microcontroller or viewing data from a GPS on a serial terminal. Check out these tutorials to dive even deeper into the world of microcontrollers or send serial data to your computer with a GPS! Need Help? Mountain Time: Shopping Cart 0 items. Product Menu.
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