Hi Papa Joe, Welcome to the forum. If you can't get your project sorted out with just a 555 circuit, there are many cheaper "Arduino" type boar...

Welcome Brian, I'm looking forward to seeing what you are doing and expect you'll have a lot to share. Jeremy Fielding has a fun video about adding...

@zander, if you're really interested in OTA for ESP32, I think Expressif has a more complicated solution that I haven't tried. I can add links below ...

There is nothing to extract @zander. What I was posting about was purely a new feature for IOT Cloud. The code is unchanged from before. It's all h...

Thanks @zander and @ronbentley1. I also use the archive feature in Arduino IDE and since my files are on Dropbox, I can always get back to a previous...

Welcome. Looking forward to hearing how your project evolves.

@will - Thanks, I really appreciate it.

What great fun! Do you have any recommendation on the speaker?

@will Wow, thanks for taking the time to do that. I've been studying the code you provided. In your code, what happens if the first byte isn't "0x4...

Thanks, Ron, That’s what I wanted to do, but I didn’t know how to peek past the first byte and it seemed to me that when you read a byte it’s removed ...

@zander The 15 deg-C came from a link in the post I referenced by @guolivar with the following remark: The "U.S. Standard Atmosphere 1976" is an a...

Possible Issue with readPMSdata() function in PM5003 Code This excellent video was posted at a very good time for me. I've been planning to constru...

@bob-s The units for the standard and environmental measurements are micrograms/cubic meter. I haven't found anything I would consider conclusive re...