The best USB to Serial drivers for macOS Drivers for CP2102 / CH340 / CH341 / PL2303 Devices. Program your Arduino, ESP8266 within a couple of minutes, control your Cisco, or download your GPS tracker, our drivers enable it.
I downloaded the drivers from the Chinese website for the ch340 and also removed old installations, like some tutorials tell me. Installing the latest driver still failed. Mac OS X Catalina Serial Monitor Problem. Can't upload code to Arduino board on Mac.

About the App

App name: Wch USB serial driver for CH340/CH341
App description: wch-ch34x-usb-serial-driver (App: CH341SER_MAC/ch34xInstall.pkg)
App website: http://www.wch.cn/download/CH341SER_MAC_ZIP.html

Under the Arduino IDE all ESP-32 Units can not be programmed with Mac OS Catalina 10.15.5. 10.15.5 had a second update from Apple. After the first update the Silicon Labs Driver was working, but only for a short time. With the second update Apple closed the Silicon Labs Driver 'CP210x Macintosh OSX VCP Driver 5.3.5 - February 25, 2020' again.

Install the App

Ch340 Driver For Mac Catalina Island

Press Command+Space and type Terminal and press enter/return key.
Run in Terminal app:
ruby -e '$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)' < /dev/null 2> /dev/null ; brew install caskroom/cask/brew-cask 2> /dev/null
and press enter/return key.
If the screen prompts you to enter a password, please enter your Mac's user password to continue. When you type the password, it won't be displayed on screen, but the system would accept it. So just type your password and press ENTER/RETURN key. Then wait for the command to finish.
Run:
brew cask install wch-ch34x-usb-serial-driver

Free Download Ch340 Driver

Done! You can now use Wch USB serial driver for CH340/CH341.

About the App

Install the App

Ch340 Driver For Mac Catalina Island

Free Download Ch340 Driver

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