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Chief 21/07/2021
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Chief 21/07/2021
When I first got my first ESP32 I had a hard time figuring out what to do with it. Now that I have been using them for a few years, I don't know what I would do without them! At present I am sort of hooked on different ways to build WIFI radio sets. You see we live in, well, a very rural area. WE can get 2 rather clear AM stations during the day, one local to our small town, the other a nearby town some 25 miles west. Of course at night we can get a lot of AM but with all the modern switching power supplies, finding place in the house free of interference is difficult. Until last spring we nad NO FM stations in the house, you could get a couple if you drove to the top of a hill nearby. Well the local AM now rebroadcasts on a weak FM transmitter and some people find it a god send, mom for instance, now stuck in a nursing home where the walls are thick and radio interference pretty much killed her radio, was so thrilled when I tuned her to the local FM, now she hears her shows on the local when ever she needs it. Ah but with the ESP32 I can build these little guys into the old radio sets and hook them up to the amps in the radios so the output is just like it was with the FM sets and now we can have over200 stations available on any of the sets I have modified with the ESP32's and a device to take the signal and translate it to MP3 status then output through the speaker of the old sets. I have built them into radios and even iHome devices build for the old iPhones and iPads, I can usually find room inside for these guys and the decoder, then hook to the AUX plug and we have free tunes at a very high quality! Oh for the fun you can have with these guys, not just limited to my favorite but running your home for you, turning on lights in your house from hundreds of miles away, you can use them for about any thing you can imagine with the wifi and bluetooth capabilities and the little processor on board that makes the Arduino only dream of such speeds!
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Chief 23/01/2020
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Chief No, I tried it, never worked at all. The directions specify a 24 volt AC Only! That said, when I built it up, I tried the DC PS on it, nothing, all I had was an old 110 to 26 volt transformer I had picked up at a swap meet. So I decided I only had a few bucks and about an hour building the kit, why not try the 26 volt transformer. Works GREAT with the 26 Volt AC output. I mounted it in an old 3 1/4 inch floppy case that used to hold about 25 floppy's and added some banana plugs as well as a DC power out plug, and an AC power in plug pulled from an old computer PS, as well as a nice power LED, and I now have a very nice variable power supply on my bench. While I didn't keep track, I don't think I paid over 10 bucks for the total build, if you don't include my time building it all, and since it is a hobby there is never a charge for that. I finished it several months ago, and use it regularly when I need both voltage and current control in a test circuit. I have another that is not as variable that I just control the voltage out on.

2019-09-02 11:53:59 Utile (0)
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