W1 Programming???
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I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I’m fairly proficient in several other programming languages and am thinking that I might “roll my own”, starting on the Mac.
I know that this is a stretch, but has anyone done this? I know - hahahaha… OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? Jim / W6JHB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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I just wrote a little code using Posix standards under Ubuntu with g++
for my compiler. Looks like USB is treated as a normal stream of characters. The most difficult part was finding my USB thumb drive in the file system. Under Ubuntu it is in the /media folder. Once I located it I was able to read from it, and write to it, using straightforward code. The W1 wattmeter should react the same way. Write a trap to catch the data packet then a little code to parse it however you like. I did not know it would be so simple: open(), read(), write(), close(). Since Macs are running Linux, with enhancements, writing code to catch the wattmeter's data stream should not be difficult. I assume you can send it commands too. You will need to determine how a data packet is formed but that is part of the fun. 73 and GL, Kevin. KD5ONS On 9/4/20 2:46 PM, James Bennett via Elecraft wrote: > I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I’m fairly proficient in several other programming languages and am thinking that I might “roll my own”, starting on the Mac. > > I know that this is a stretch, but has anyone done this? I know - hahahaha… OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? > > Jim / W6JHB > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Elecraft mailing list
Guys - thanks for the replies! I might have enough info to get started. That is, after the W1 gets here from Watsonville and I get it soldered together. I’ll be doing it in Xojo (based on Real Basic) and can port it to the Rpi and/or Linux should I ever got it working.
73 & thanks, Jim / W6JHB > On Sep 4, 2020, at 2:46 PM, James Bennett via Elecraft <[hidden email]> wrote: > > I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I’m fairly proficient in several other programming languages and am thinking that I might “roll my own”, starting on the Mac. > > I know that this is a stretch, but has anyone done this? I know - hahahaha… OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? > > Jim / W6JHB > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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And for trying out W1 commands and seeing what the expected response is, it's
handy to use a terminal emulator that will talk over a serial (or serial via USB) port. I use putty for this purpose (and actually never built a program ... I just fire up putty when I want to get a more precise power readout from the W1). I played around with trying to build an Arduino version .. thought it would be fun to display W1 output on an LCD ... I used SoftwareSerial on the Arduino, but never succeeded in getting it to talk to the W1. - Bruce K1FFX ----- Bruce Rosen K1FFX K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email]
Bruce Rosen
K1FFX K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 |
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I have successfully used an Arduino to talk to a W2. Like Bruce I could not
get it to work with SoftwareSerial, only the hardware Serial port would work. I have it working with an Uno, a Nano and a Mega all using the Serial port. Lest you are tempted to use the hardware serial ports Serial1, Serial2 or Serial3 on the Mega, they will also will not work. I did not test with a W1 but based on what has been described here I expect it behaves the same as the W2. Unfortunately the same Serial port is used to download the program via USB, so you need to disconnect the W2 (or W1) when doing downloads. 73, Lou W2ROW -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by kevinr@coho.net
When you are interacting with a USB thumb drive, you are normally
interacting with a USB mass storage class device, not with raw USB. Most cheap USB boltons to hardware are done with the communications class, and emulate an asynchronous serial port (although some may use the human interface device (mouse/keyboard) class. As such, the ability to write code for the thumb drive doesn't mean you can use the same code on the wattmeter, even though the chances are that the USB side can be treated as though it were something else. -- David Woolley Owner K2 06123. On 05/09/2020 01:57, kevinr wrote: > I just wrote a little code using Posix standards under Ubuntu with g++ > for my compiler. Looks like USB is treated as a normal stream of > characters. The most difficult part was finding my USB thumb drive in > the file system. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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