ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA Compatible with Arduino IDE (3PCS)

Really useful microcontroller

I had a few old Chinese addresses able rgb strips that just had a very basically controller and crappy power supplies. Install WLED on this board and now all the strips are smart light strips and they perform better than some of the other branded RGB led strips.

Am able to connect sensors and host a server on it!

Ok

Great for my daughters uni project

Ok

If you have ubuntu 22.04 and you can't upload anything to your ESP32 equiped with CP2102, here is how to fix it: First run `sudo dmesg -w` and see what happens when you plug your board You should see something like this: ``` [951023.608473] usb 1-6.1: new full-speed USB device number 62 using xhci_hcd [951023.739847] usb 1-6.1: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00 [951023.739852] usb 1-6.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [951023.739854] usb 1-6.1: Product: CP2102 USB to UART Bridge Controller [951023.739856] usb 1-6.1: Manufacturer: Silicon Labs [951023.739858] usb 1-6.1: SerialNumber: 0001 [951023.753463] cp210x 1-6.1:1.0: cp210x converter detected [951023.754508] usb 1-6.1: cp210x converter now attached to ttyUSB0 ``` If some time after connecting you see this...: ``` [951026.615438] usb 1-6.1: usbfs: interface 0 claimed by cp210x while 'brltty' sets config #1 [951026.616472] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0 [951026.616689] cp210x 1-6.1:1.0: device disconnected ``` ... it means that your board automatically disconnects. In this case we have an issue with a preinstalled software called "britty", to fix this issue simply uninstall it: ``` sudo apt remove brltty ``` Then reconnect your board and upload your code, it should work. You may have other software conflicting with your board, in which case start with `sudo dmesg -w` to see what's going on... I update my rating because the board actualy does work and is indeed a DEVKITV1 instead of incompatible NodeMCU shipped by some other amazon sellers...

Used one of these to replace the control box for one of the big box store's animated Christmas trees that decided not to work anymore. Instead of trashing the tree, I cut the old control box off and replaced it with one of these ESP32 boards loaded with WLED. 3D printed a box for it and now it works again. I have easier and a lot more control with more animations to choose from using the WLED app on my phone or web interface on a PC. Now I'm researching more LED setups for Xmas and other holidays.

I picked these up to make a cheap COB LED strip smart. It only came with an RF remote which is not sustainable. They arrived without documentation, but that isn't a problem for me. My will is stronger than that. They arrived sealed in antistatic bags and looked new. The onboard USB port is a micro USB. I used it to flash WLED and setup wifi. I powered the board and the LED strip from the same power source because they used the same voltage. Then, I used a GPIO pin to communicate with the light strip. It was easier than I thought it was going to be. A heat sink is not recommend because the ESP chip does not produce much heat. They do not include a display. The quality is fine for my purposes. If you are just getting started with something like this, read the WLED site or ESPHome. Step 1. The website will flash the firmware for you.

All three ESP32s worked and the price was very reasonable.

I bought this because I’m an idiot who apparently enjoys wasting his money, time and effort. I have a bunch of Arduinos but forgot everything I knew about them. I got tired of trying to relearn Arduinos and stumbled upon ESP32 and in spite of somewhat troubling reviews, I gambled! My first evening of playing with the ESP didn’t go well and I was frustrated with no way to k ow if it was SOE thing I was doing or had I received a dud board. Today, I decided to give it a go with an antique laptop… Sure enough, I can say the board works with no weirdness like having to play the hokie pokie with the Boot button-something it seems Might be common. Now that I’ve confirmed comms betwx the laptop and board, it’s time to write some code and make something that will be of benefit, a water level controller! Next up water temp control! Edit:I’m buying more from this vendor! These boards work and if I find something that works, I go back to that trough! Yes, my wife enjoyed laughing at me as I showed numbers changing on my phone. It was much more impressive than making an LED illuminate/extonguish!

Using these with home assistant. A lot of different use cases. In my case I use at a Bluetooth proxy with home assistant. This allows me to know where my phone is in my home so I can automatically turn on lights depending on location