Review on 📡 HiLetgo ESP32 OLED WiFi Kit - Internet Development Board for Arduino ESP8266 NodeMCU with 0.96 Inch Blue OLED Display, WiFi, Bluetooth, and CP2012 by Kristen Narvaez

So I thought this might be my new favorite board. My first test and project went great. The project was smaller and didn't need many contacts. So I bought more (6 in total). My next project was much larger and used most of the pins. I connected the board to the connectors on the board I designed and the OLED didn't work. I stuck the pins on the new board and started troubleshooting and eventually fried the second screen but found out why. When designing the board, I studied the pinout pictured above, as well as Heltek's documentation, and it matched the supplied label sticker. Both are wrong. If you look at the back of the board you will notice that the printed label says "Vext" not GND. The Vext's output supplies positive voltage, not ground as shown in the documentation or on the sticker, and if your two are connected then it will fry the OLED like I did. That being said it could be a wonderful board if a little more attention was paid to the quality and if the board delivered was really the same as the picture. The image shown on Amazon has GND instead of Vext and nowhere does it say HelTek. Cons: * The documentation is there, but it's wrong, at least as far as the conclusions are concerned. * It can be confusing as to what the board actually is. HiLetgo for sale but everything else shows that the Heltek* board does not match the one in the pictures. Look at the back and find the pins on the board* Label doesn't match the pinout Pros:* Works well for small projects* Love the concept of an integrated OLED screen* If a few things could be fixed it would be Great