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TOPIC: ESP8266 dropping like flies. What am I doing wrong

ESP8266 dropping like flies. What am I doing wrong 11 months 1 week ago #3409

  • Jansen
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I recently ordered a few esp8266-12F on ebay. I also ordered breakout pcb's. I soldered the first two on the PCB and was able to program them en use them briefly. Then I discovered that I had blown them up with 5v. I have been using them with 3.3v ever since. But I am only able to use one out of the ten I bought. I hand soldered most of them but I also used my brothers infrared soldering oven to solder the last 4 I had. They don't work either. When I put them on a breadboard and connect them to my 3.3v breadboard power supply, the power supply led bliks and the voltage regulators get really hot. They seem to be dead out of the box. Can it be that they didnt like the soldering oven? Did I have a bad batch? Does anybody have a clue what can be wrong.
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ESP8266 dropping like flies. What am I doing wrong 11 months 1 week ago #3410

  • piman
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What type of break out board are you using, also what type of voltage regulator. Also some photos might help .
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ESP8266 dropping like flies. What am I doing wrong 11 months 1 week ago #3411

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https://goo.gl/photos/w8r3XZGWNvWRqYRx8
[url=http://https://goo.gl/photos/w8r3XZGWNvWRqYRx8]Working esp8266[/url]
This is the only one I have working at the moment. I use it with the breadboard psu in the picture below. The PSY is set to 5v and the esp8266 in this picture has a HT7333 underneath.

https://photos.google.com/photo/AF1QipNsee6dXzDkJrxmJ1IeKLIDAiAWHMDPLDHouG5s
This is the breadboard psu I am using.

https://photos.google.com/photo/AF1QipPxu-g8j00RszP3GwLBa75rnoKe857QLnaXsXea
These were soldered using a infrared soldering oven. I used the above breadboard psu set to 3,3v to test them. I tested them by simply touching the vcc and gnd holes with wires from the psu. As soon as I did that the regulator on the PSU got very hot and the led flashed.

btw, I screwed up the links to the images. i have no idea how to fix it.
Last Edit: 11 months 1 week ago by Jansen.
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ESP8266 dropping like flies. What am I doing wrong 11 months 1 week ago #3412

  • piman
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I also am using that configurations at the moment for a set of nodes, have you modified the breakout board?
Last Edit: 11 months 1 week ago by piman.
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ESP8266 dropping like flies. What am I doing wrong 11 months 1 week ago #3413

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No I haven't modified the breakout boards. That's why I don't understand why they all die.

I also have a few 07's on my way. I wonder if their reception will be better than my 12F's.
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ESP8266 dropping like flies. What am I doing wrong 11 months 1 week ago #3414

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That might actually be your problem using voltage regulator HT7333 or any regulator with this board Will need to be modified, also why are you connecting reset pin and GPIO 16?,
Last Edit: 11 months 1 week ago by piman.
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