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Grogster
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Posted: 10 May 2018 at 6:47pm | IP Logged Quote Grogster

Nothing springs to mind. Instructions are included with the kit.

As designed, the board assumes you will connect to the VCP with something like TeraTerm or GFXterm, and just press a key. As soon as you do that, the HC12 will transmit the received keystrokes. That's how I have been doing it.

If I did a new version of that board, I cold include a MM2 and a button to send data to the HC12 to make is self-contained as mentioned. I am not sure if it is worth that effort though, as with a USB connection, you can do the same thing. Perhaps REMOVE the USB connection for a new version of the PCB, and replace with a MM2 chip.

EDIT: The main reason for having the USB serial connection, is so that you can program an HC12 module as well as being able to test it. Programming can be done via the MM2, but you need a serial connection to the console for that anyway, so.....

Edited by Grogster on 10 May 2018 at 6:50pm


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Andrew_G
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Posted: 10 May 2018 at 8:57pm | IP Logged Quote Andrew_G

Thanks Grogs. I guess I should start looking for a brick to hold down the modules. Cheers, Andrew
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Grogster
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Posted: 11 May 2018 at 8:55am | IP Logged Quote Grogster

This weekend, I am going to try Mick's(bigmik) idea of using two of those strong magnets from an old hard-drive. I am reasonably confident that this method will work, and it is simple. Will keep the thread posted.

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Andrew_G
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Posted: 14 May 2018 at 11:26am | IP Logged Quote Andrew_G

Hi Grogs, your Tester Kit arrived this morning (I guess sitting around in an Aus Post bag for the weekend). Not bad - less than a week from order to receipt.
I looks really well set out and your SMD soldering is great. Your instructions are clear and I should be up and running as soon as I have cleared some domestic duties.
Cheers, Andrew
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Grogster
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Posted: 14 May 2018 at 4:44pm | IP Logged Quote Grogster

Fab.
Thanks for letting me know it has arrived.

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Posted: 17 May 2018 at 7:40pm | IP Logged Quote Grogster

I have made a module clamp out of a spare PCB. I cut it down so that I just had the two slots. I fitted 3mm bolts from the bottom, added two more spacers, then used washers and more threaded spacers on the top. By screwing down the spacers from the top, you can get a nice even compression of the module on the pogo-pins. Works well.







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Posted: 08 June 2018 at 9:42am | IP Logged Quote Grogster

Here is a photo with the properly made HC12 clamp thing fitted.





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Bill7300
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Posted: 12 June 2018 at 6:37pm | IP Logged Quote Bill7300

Can you clear some of your PM inbox please Grogs. PM wont let anybody send you anything at the moment, as it believes you have exceeded your quota.

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Grogster
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Posted: 12 June 2018 at 6:40pm | IP Logged Quote Grogster

Done.

That's the first time this has caught me. I normally keep my PM's under control....

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