HiLetgo 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 for Arduino IDE

Love it! Works super well, has plenty of space for code, and is fast. I'm programming it with the Arduino Cloud editor, which now supports OTA program code updates. So easy to use, there's no need to keep reconnecting to the computer for code updates.

Im completely new to ESP32s so it took some setup to run with Arduino IDE and Arduino cloud and there isnt much about this particular board on how to do so. With some finagling I managed to make it work with the following:-Make sure to install cp210x driver from the Silicon Labs website.-For Arduino IDE, go to the board manager and search/download the esp32 library from espressif and select "ESP32 Dev Module" when selecting the board.-For Arduino cloud, similarly set up your device by selecting "ESP32 Dev Module" and make sure you have the Arduino Cloud Agent installed on your PC-When uploading code make sure to hold the "100" button when the output monitor shows "connecting..." you dont need to hold it any longer once it starts writing.I've only managed to make a hello world display to test it, and will update further if any other issues or concerns arise.

Bought this board looking for something with better wifi than some other esp32 boards I tried and the wifi is better. I can control the board from my bedroom upstairs when it's located in the closet of the downstairs laundry room. The pins are very different from the last board and aren't exactly written on the top of the board like my last controller. I do feel this is a much more stable controller though with better wifi, but keep the paper of pin mapping it comes with. That will be your friend. That's my only complaint is that I have to look at the map and count pins. I'm using this to power led strips on my stairs using wled.Update: 4/17/24 - still super happy with this board. The wifi is truly phenomenal compared to the last dev boards I had. I was just laying in bed upstairs setting times and messing with settings in wled for it when it's downstairs in a closet. The last boards I had could not seem to stay connected for some reason and half the time I couldn't open wled bc of that. This boards to the wifi once on and stays connected. Worth the extra money in my opinion.

I've bought about a dozen of these now from HiLetgo and they all have been well made and reliable. This is the 38 pin version (beware, some variants have fewer pins- unless that's what you want). The board is just narrow enough to leave a row of sockets exposed on either side on a typical solderless protoboard. ESP32 offers a lot in a small package. With vendors price gouging for anything RaspberryPi and to a large extent most MCU/SBC boards during this time of chip shortages, the ESP32 remains reasonably priced.Only complaint is that HiLetgo uses a linear voltage regulator, which is not that efficient, so unless you can supply the board with stable, regulated 3.3v from an external source, you won't get the super low µA sleep currents that the ESP32 is capable of. Can't really fault HiLetgo on this, since it's really hard to find boards with high efficiency regulators. If you know what to look for and the product pictures are accurate, you easily spot the boards with the inefficient regulator (hint: it's the package with the 3 pins on the left and large pin/bar on the right- the third largest component on the board after the ESP32 and USB modules). I now see that HiLetgo sells the more efficient board for almost the same price (ASIN B077KJNVFP)- or look for WeMos/LoLin.

First, I am a total noob at this sort of thing. The board and the software all work fine once you puzzle it out. I decided to go with the platformio and JTAG debug method. This offers many hours of problem solving and googling just to get the blinky and hello-world examples to work reliably. I would take careful notes about a setup that seem to work then hours later I would get oodles of connection error messages/link errors/compile errors for what seemed like the same arrangement.Some items of interest:I assumed that I should see COM ports in order for this to work NOT SO. The debugger device fools you it does have a COM port but if you do it correctly it has some USB port instead BUT that only works on interface 0. You will become friends with ZADIG.Some pins are special at power on - surprise GPIO12 !Although the JTAG debugger board has COM port it seems like it cannot be used while debugging or uploading ?? I had to use a separate USB - USART dongle so you need to USB cables. If you don't want to move little wires around.The slightest change to anything (with a few exception) causes 100s of little programs to be recompiled taking several minutes. Does the Win 10 Antivirus like that ? no way - it is going to slow that down for you.Trying to remove some of the fancy WIFI, BlueTooth, HTTP code just for a little testing seems near impossible.Careful with that platformio.ini else many hours of puzzlement.