HiLetgo 2pcs ESP32-DevKitC ESP32-32U Core Board ESP32 ESP-32 ESP32U Development Board for Arduino

Works just like any ESP32 but with the ability to run an external antenna to the outside of your project box

I have these outside running WLED for my RGB Christmas lights. Old ones I had workef but I would loose WiFi signal and caused issues trying to adjust them. Hopefully they work well then I start using Xlights.

These things are great value for your money and they can be used for SO MUCH. Amazing.

These little boards are helpful! However, this revision uses an Xtensa LX6 - which is a pain to get working compared to the RISC-V revisions.That's especially true for Rust users - RISC-V is fully supported after you run the single `rustup` installation command. However, Xtensa boards require an extensive setup, which is unsuitable for beginners. Afterward, you'll likely face weird, undocumented problems that leave you running scripts for hours.If you do end up with this version, there are limited online resources to assist you. The setup documentation isn't detailed, and some pages are contradictory...As such, I don't recommend this version of the board. Grab some fancy RISC-V revision - you won't regret it!

these work great, and the ability to add an external antenna makes using metal enclosures possible, plus a high-db option works great for the signal.

Using this for Tasmota I found that when powering by the USB it works as expected. Trying to power it using the Vin pin lead to spurious inputs on the tasmota console - which makes it unable to perform tasks. I suspect if I had a super clean and stable power source (ie - not one manipulated by cheap voltage regulators, which is all I had), it might work. I ended up using the esp32 devkit 1 and soldered an external antenna on to achieve the project goals. These will sit in the drawer for now.

one of the two boards was faulty and didn't work

I purchased this as a possible replacement for a "HiLetgo: ESP-WROOM-32 ESP32 ESP-32D" that due to placement was experiencing poor WiFi connectivity and prior to deploying it, I wanted to compare the signal strength of this with the device I was planning to replace.I place 3 ESP-32's next to each other and started the network to see the relative signal strengths, from the picture you can see this data for each of the following devices:ESP32-Test01 - HiLetgo: ESP-WROOM-32 ESP32 ESP-32D (same as the device I was looking to replace).ESP32-Test02 - HiLetgo: ESP32 Mini ESP-WROOM-32 (because I had one laying around to compare)ESP32-Test03 - HiLetgo: ESP32-DevKitC ESP32-WROOM-32U with Highfine: 2.4GHz 6dBi Indoor Omni-Directional WiFi Antenna 802.11n/b/g (this device)This device/antenna configuration seen to be 12dBm stronger, so I'm hoping that it will be able to address my issue.