zip file and you will have a directory containing the files. This package contains all necessary files for set-up of the sensor. Package version: 2020.07.20 Release date: This will produce the ch34x.ko file, which you can install as described above.Developed tutorial: providing manual, drivers for Windows 7, 8, 10 Sudo wget -O /usr/bin/rpi-source & sudo chmod +x /usr/bin/rpi-source & /usr/bin/rpi-source -q -tag-updateīuild the Driver Module # unzip the driver sources archive # reboot here, you're on the latest kernel Prepare the Kernel Build Environment sudo apt-get -y install linux-headers-rpi This is the manufacturer's website, but it's all in Chinese. On the Raspberry Pi, go to and click that big blue Download button. Normally isn't required, but if for some reason you need to compile it for a different kernel version of Raspberry Pi, here it goes. Upload the new firmware to esp8266 and, given it prints output to Serial at 115200 baud rate, this should print stuff: cat /dev/ttyUSB0 SMSC9512/9514 Fast Ethernet Adapterīus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.īus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubĪt this point you're all set. usbserial: USB Serial support registered for ch34xīus 001 Device 004: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapterīus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. usbcore: registered new interface driver ch34x Plug in your dev board into any of the Raspberry Pi's USB port. You should see the ch34x.ko file listed: ls /lib/modules/$(uname -r)/kernel/drivers/usb/serial Verify the module has been installed (so it's picked up on reboot). Install the kernel module: sudo insmod ch34x.ko
1-Minute How-To Download the ch34x.ko onto the Raspberry Pi. Sometimes you will see the H元40/H元41 designation, it's just different names for the same hardware. The driver will work both for CH340 & CH341 chips. I found it surprisingly difficult to locate working instructions and binaries, hence this repository came to life.
Raspberry Pi doesn't have an out of the box driver for it, so plugging your device into RPI's USB won't do much other than power it. This is a very common chip, especially in those millions of esp8266-based dev boards (also often referred to as NodeMCU). A pre-compiled binary for CH340/341 (H元40/341) USB-to-Serial UART Driver for Raspberry Pi.
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