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I find the cables cheap enough to include with any kit board i send to anyone as i to found every one has a serial port until they go to plug into it and find out no they dont. You must use the same usb socket each time or you will need to reinstall the driver for each usb socket used, as it will assign a different com port number for each usb socket. You MUST use the driver on the disc or the Ritmo driver or it will not work. The suppliers will not tell you this as they are sold as a no name brand but rest asured they are made by Ritmo. If anyone is interested all these cables with the green plugs are made by Ritmo and if you go to the Ritmo web site there is drivers listed there should you loose the disc or are having problems. These also work with Vista, as not all cables come with a driver compatiable for Vista. The required kernel module is called ch341 and built with the nfig entry: CONFIG_USB_SERIAL_CH341=m If you use make nconfig or make menuconfig you will find this module in -> Device Drivers -> USB support (USB_SUPPORT ) -> USB Serial Converter support I had to set the communication parameters manually to 9600 baud, 8N1 before I could use the device properly: $ stty -F /dev/ttyUSB0 9600 raw.I have bought a dozen of these and have not have a problem with their use and have used them with data logging as well as programming and the benifit of the 9 pin D socket it can also be used with other serial equipment where the AXE027 can not.Įbay link for the supplier i bought from and at less then Au$3.50 landed in you letterbox you cant go wrong.
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How do I test if the dongle works? Lsusb lists the device here as Bus 003 Device 002: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter It is often shipped together with the sds011 sensor. I cannot get data from PC via USB serial dongle. The port on Raspberry Pi B+ is working, because I've hooked up scope on transmit pin of serial port (on Raspberry Pi B+ side) and if I send text from Raspberry Pi B+ (via minicom under ssh tunnel), I get activity on the scope. I've double checked the Raspberry Pi B+ setup, the wirings (triple checked with multimeter), the scope wirings and the serial communication is dead. Whatever text I send to the Raspberry Pi B+ via minicom, the traffic on the line is dead, I've checked with scope. HL-340 is USBSerial adapter and it is recognised by my kernel: lsusb Bus 007 Device 010: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter I am trying to initiate communication via this adapter with Raspberry Pi B+ board, but I am constantly failing. I have Kubuntu 14.10 development workstation and recently I have bought a adapter. Hi, I've a laptop pc (Joybook r23e BENQ) with no serial port, so I'd like to use an USB to serial converter.
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Windows 10 64 bit / Windows 10 / Windows Server 2012 / Windows 2008 64 bit / Windows 2008 / Windows 2003 / Windows 8 64 bit / Windows 8 / Windows. Download software in the Registry Tweak category. After compiling and insterting I got drivers/usb/serial/usb-serial.c: USB Serial support registered for ch341-uart ch341 4-1:1.0: ch341-uart converter detected usb 4-1: ch341-uart converter now attached to ttyUSB3 usbcore: registered new driver ch341 Haven't tried connecting anything yet, but it seems it will work.ĭownload speed registry tweak for windows 7 internet backgammon download. Just compiled under centos 5.4 i386 Linux 2.6.18-348.el5 #1 SMP Tue Jan 8 17:57: i686 i686 i386 GNU/Linux In addition to info above had to comment out what is suggested here AND everything after EXPORT_SYMBOL_GPL(tty_encode_baud_rate) in tty_ioctl.c and also remove the.usb_driver line in ch341.c (circa line 320). Hl 340 Usb To Serial Driver Ubuntu Rating: 3,9/5 9361 votes