Christopher, Thanks! Great to hear from somebody so close to me geographically.
I will certainly email you off-list. I often need somebody who can see (photon dependent) to take a squint at the legend on some gizmo or other so I can crack on with developing software and generally tinkering. I have just acquired a Raspberry Pi Pico MCU, because I want to review it for my site: http://www.raspberryvi.org/ The bread-boarding and programming I can do, and now thanks to sigrok-cli I can do the testing and analysis as well. Mike On 20/02/2021 15:16, Christopher Obbard wrote: > Hi Michael, > > According to your signature, I live fairlu locally in Horsham, West Sussex. > Please let me know if there is anything I can help you with now or in the > future and feel free to message me off list. > > I'm an electronics engineer too. > > Thanks! > > Christopher Obbard > > On Sat, 20 Feb 2021, 15:00 Michael A Ray via sigrok-devel, < > sigrok-devel@lists.sourceforge.net> wrote: > >> Hello Gerhard, >> >> I'm familiar with IDC and DuPont connectors etc, and the 0.1 inch pitch >> of a lot of electronic gizmos and connectors. >> >> Thanks for taking the time to help. Kevin has also helped to confirm >> that what I suspected is perfectly true. >> >> How different things are now for those of us who can't see with smart >> phone apps capable of doing optical character recognition. >> >> Thanks again. >> >> Mike >> >> On 20/02/2021 14:28, Gerhard Sittig wrote: >>> On Sat, 2021-02-20 at 12:59 +0000, Michael A Ray via sigrok-devel wrote: >>>> >>>> On the broad face of the box there are legends reading: >>>> >>>> CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 GND PWM1 >>>> CH8 CH9 CH10 CH11 CH12 CH13 CH14 CH15 GND PWM2 >>>> >>>> I have managed to read this using an app on my iPhone called SeeingAI >>>> that can read short text of this kind. >>>> >>>> But I am not certain which line of ten connectors is the first 8 >>>> channels, plus GND and PWM, and which is the second. >>> >>> This connector format is referred to as IDC, and comes as pin >>> headers (male, what you see on the device) and female (should be >>> the cable side). This connector's pitch appears to be 100mil >>> (0.1 inch spacing) which translates to 2.54mm spacing. >>> >>> There is a convention how to number those IDC pins. When you look >>> _into_ the set of pins (that is: from the outside into the 2x10 >>> connector of this device), and have the keying gap of one of the >>> long sides to the left, then pin 1 by convention is in the upper >>> left hand side. Pin 2 is on the upper right hand side. Pin 19 >>> would be on the lower left hand side, pin 20 on the lower right >>> hand side. Female connectors of course are mirrored. And there >>> are vendors who don't heed this numbering and make up their own. >>> So it's always good to check before use. >>> >>> Cannot tell whether http://www.jtagtest.com/pinouts/arm20 is >>> accessible to you. It lacks the keying notch, but illustrates the >>> numbering. Could not find ASCII art images in a quick search, >>> most are png and pdf. It's a bummer. >>> >>> According to the above convention, pins 1, 3, 5, etc up to 15 >>> are ch0, ch1, ch2, up to ch7. Pins 2, 4, etc up to 16 are ch8, >>> ch9, etc up to ch15. Both pins 17 and 18 are GND. Pin 19 is PWM1, >>> pin 20 is PWM2. >>> >>> That is my interpretation of the mugshot >>> https://sigrok.org/wiki/File:Kingst_la2016_mugshot.png >>> on the device wiki page https://sigrok.org/wiki/Kingst_LA2016 >>> which suggests that the notch is on the connector's "top" and >>> pointing to the cover of the device. >>> >>> >>> virtually yours >>> Gerhard Sittig >>> -- >>> If you don't understand or are scared by any of the above >>> ask your parents or an adult to help you. >>> >>> >>> _______________________________________________ >>> sigrok-devel mailing list >>> sigrok-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/sigrok-devel >>> >> >> >> -- >> Michael A. Ray >> Analyst/Programmer >> Witley, Surrey, South-east UK >> >> "Perfection is achieved, not when there is nothing more to add, but when >> there is nothing left to take away." -- A. de Saint-Exupery >> >> https://cromarty.github.io/ >> http://eyesfreelinux.ninja/ >> http://www.raspberryvi.org/ >> >> >> >> >> _______________________________________________ >> sigrok-devel mailing list >> sigrok-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/sigrok-devel >> > -- Michael A. Ray Analyst/Programmer Witley, Surrey, South-east UK "Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." -- A. de Saint-Exupery https://cromarty.github.io/ http://eyesfreelinux.ninja/ http://www.raspberryvi.org/ _______________________________________________ sigrok-devel mailing list sigrok-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sigrok-devel
