hi PiGraham, after dmesg, i got [ 148.256594] usb 1-1.2: new full-speed USB device number 4 using dwc_otg [ 148.359136] usb 1-1.2: New USB device found, idVendor=10c4, idProduct=ea60 [ 148.359166] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 148.359183] usb 1-1.2: Product: C...

thanks a lot, danb35. Actually, I've already got this dmm. As you have said, I will try to find out the data format used by the DMm. Well, the reason for using my own application is that I want and need to learn how the code is written. I've read that some c-libraries ( libusb/pyusb) can give me acc...

danb35 wrote:None whatsoever, other than you'll first need to find some documentation on the data format or figure it out yourself. Does it present as a USB-serial device? If so, that'll likely make it easier to work with.

Not really. http://us.100y.com.tw/ChanPin.asp?MNo=56182

Actually, I am thinking to write some kinda device driver myself. you got some ideas, how to do? Thnx

Hi frens,

I am thinking if its possible to access the data/readings on my DDM via RPi. I have a APPA-109N Usb DDM.
I've been reading about Libusb but kinda confuse.

Any ideas/help is highly appreciated.

Thanks!!