K3NG Winkeyer
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KISS (Keep It Simply Stupid) principle for the realization and parameter setting of this Winkey CW keyer using an Arduino Nano and the Keyer software by K3NG. |
Fan speed controller board setting
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For one of my projects, I recently bought on Aliexpress (see links at end of article) a Chinese fan speed controller board.
I was struggling to understand how this board can be set, the instructions found on Aliexpress being nearly of no help. The Chinese to English translation is.... :-)
Here is what I found ... 
RDZ_TTGO radiosonde receiver use
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After having build a radiosonde receiver using the DL9RDZ software and a TTGO module, here is a short article on its use in the field. |
Power/SWR meter à la PD0LEW
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Wishing to replace my good old trusty BIRD 43 Watt-meter, I prospected a little on the Internet and found the description of an open source project for a Watt-meter which corresponded perfectly to my needs. This is a fork of the version made by TF3LJ, and developed by PD0LEW. A new hardware version was subsequently developed by WA2T. I chose the version with an OLED display, but there are versions with touch-sensitive TFT displays. |
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