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 (1 PCS)

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...

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.

I was investigating how to enable bluetooth with my Homeassistant installation and found documentation on creating a bluetooth proxy. This item was linked directly on the ESPHome website, which also includes a web-based firmware flasher. Encouraged by how easy this could be, I made the purchase. The competing option was a M5Stack Atom Lite, which looked quite promising as it comes within a case already. After weighing the shipping times, I went with this product. The two are essentially the same price if you factor in a separate case for the ESP-WROOM-32. Sifting through the reviews here, I found that manually installing drivers for the board would be required. If you just plug in the device, Win10 shows a popup but it does not actually install the needed drivers. You will need the easy to google CP210x USB to UART Bridge VCP Drivers, CP210x_Universal_Windows_Driver.zip available from Silicon Labs. After that, the web app flasher was easy to run. It wrote the FW needed and then lets you specify your wifi network. I had read many reviews that were disappointed with horrible wifi range. I am 1 floor below my router and it shows -71dB signal. Not great, but still functional. Maybe that's not bad considering there's no antennae. Other wifi devices in the same room were about -65-70dB. Immediately after connecting to wifi, Homeassistant recognized the device and it was easy to add it as an ESPHome device. It easily found the 3 bluetooth thermometers I wanted to connect (Thermopro TP357). I haven't had any notable dropouts for this first week but will continue to monitor. As the last step I am purchasing a case for the board. There are some generic plastic boxes available on Amazon, but I decided to go with Etsy for a custom 3D printed one.

So im using these esp32 boards to run wled for led lights. I have successfully ran 900 leds with it using wifi and the wled app from my phone and connected two pir sensors to it. That being said, I fried one board which may have been my fault since I was running 12v to it instead of the 3.3-5v. I'm now running 5v to it with a step down converter, but earlier today board 2 stopped working after an update to the wled app. The light on the board illuminates but I can't reflash it. Opened up board 3 and flashed just fine and all is working again. These lights have only been in my experimental development stage before I apply lighting to my stairs. So I've lost two boards. The first one may have been my fault since the extra voltage made the board heat up but I thought it could handle just fine. Board 2 is still a mystery to me why it stopped working the way it did. I will look for a way to reset it. Glad I bought the 3 pack. I would do it again. Fun project to learn about. Update: 4/14/24 if you have trouble with the wifi try pushing the EN button on the board. Third board suddenly dropped wifi and after turning off back on, unplugging, etc over a few days, I finally pushed the en button and the wifi turned back on. Not sure what happened but that solved my issue. Been fine again for past 3-4 days. Thought I would report. I even went from USB to soldering power and that didn't help.

Programmed these with esp home for homeassistant to use as a bluetooth hub you could say, that way they could work bluetooth devices far away from the laptop that runs home assistant

I love the product i just wish they would've provided the dimensions of the holes. They only show the dimensions of the outer part of the chip but nothing for the holes which makes it harder to create a housing for it. Otherwise, I love the product.