The CH340 chip is used by a number of Arduino compatible boards to provide USB connectivity, you may need to install a driver, don’t panic, it’s easier than falling off a log, and much less painful.
The driver should automatically install on most operating systems. However, there is a wide range of operating systems out there. You may need to install drivers the first time you connect the chip to your computer's USB port or when there are operating system updates. Mac's and serial TTY's. Mac's are excellent tools for accessing serial device TTY ports (to console into PBX's, switches, and routers). You just need a serial to USB adapter, the right driver, and some Terminal software. You can use screen, although Minicom (or a GUI program) offer more features and functionality. FTDI MAC OSX Drivers For all Gearmo USB to Serial & TTL Converters Supports all 32 & 64bit Intel Mac Platforms: MCS7780 Mac OSX driver For Gearmo USB InfraRed Adapter Supports OSX 10.5 through 10.9: MCS7780 Windows Drivers For Gearmo USB InfraRed Adapter Supports Windows XP – Vista – 7 – 8 – 8.1 Windows 10 not supported. Linux Drivers, Mac Drivers, User Manuals, Windows Drivers: USB 2.0 To Serial (9-PIN) DB-9 RS-232 Adapter: Linux Drivers, Mac Drivers, User Manuals, Windows Drivers: Download: CB-FTDI 2 files 21421 downloads User Manuals, Windows Drivers: USB 2.0 to Serial Cable 6FT W/ Thumbscrews: User Manuals, Windows Drivers: Download: CB-FT1M 1 files 10348. Arkmicro Usb To Serial Drivers For Mac Mac Recover Hard Drive software restores all different types of data including text files, songs, videos, images, pictures, digital photos, snapshots and office documents from corrupted and logically damaged hard disk and USB devices on apple Mac PC.
Windows
(Manufacturer’s Chinese Info Link)
- Download the Windows CH340 Driver
- Unzip the file
- Run the installer which you unzipped
- In the Arduino IDE when the CH340 is connected you will see a COM Port in the Tools > Serial Port menu, the COM number for your device may vary depending on your system.
Older Windows Driver Version and Instructions
Download the Windows CH340 DriverUnzip the folder.If you are running a 64Bit Windows: – run the SETUP_64.EXE installer.If you are running a 32Bit Windows: – run the SETUP_32.EXE installer.If you don’t know, try the 64 bit and if it doesn’t work, the 32 bit.In the Arduino IDE when the CH340 is connected you will see a COM Port in the Tools > Serial Port menu, the COM number for your device may vary depending on your system.
Macintosh
(Manufacturer’s Chinese Info Link)
The following github has up to day pkg files for 1.3, 1.4 and 1.5 at time of writing, thanks to Joshua Wallis for bringing this to my attention…
Direct Download Links (from the github repo above):
See the github link above for installation instructions if you need them.
Previous macinstosh downloads if the above doesn’t work for you…
Linux
(Manufacturer’s Chinese Info Link)
Drivers are almost certainly built into your Linux kernel already and it will probably just work as soon as you plug it in. If not you can download the Linux CH340 Driver (but I’d recommend just upgrading your Linux install so that you get the “built in” one).
Uninstalling From Macinstosh
A couple of Mac users have said “the driver crashes my mac Sierra how do I uninstall”.
Firstly regards the crash make sure you installed the 1.3 version of the driver, not the old one. You could download it directly from the Manufacturers Website in case they have issued an update since I wrote this page.
Secondly a quick google search reveals that this is how you uninstall:
Usb Serial Driver Mac El Capitan
- Open a terminal and type:
cd /Library/Extensions/
- Verify that the .kext file is present:
ls | grep usbserial.kext
- Output should be:
usbserial.kext
- Then type:
sudo rm -R usbserial.kext
- Verify that the .kext file has been removed:
ls | grep usbserial.kext
- Output should be empty.
- After you should remove the files stored in receipts folder:
cd /private/var/db/receipts/
- Find the enties:
ls | grep usbserial*
- Output should be:
codebender.cc.ch34xinstaller.usbserial.pkg.bom codebender.cc.ch34xinstaller.usbserial.pkg.plist
- Remove each one of the files of the above list:
sudo rm -r
filename
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