AITRIP 3PCS 30Pins USB-C ESP-WROOM-32 Development Board, 2.4GHz Dual Mode WiFi+Bluetooth Dual Core Microcontroller for Arduino IDE, Support AP/STA/AP+STA, CH340 Chip

Bought these to have a USB C board to use for my Home Assistant bluetooth proxy so I can control the Switchbot curtains in my bedroom. Unfortunately, due to poor documentation these things would not work with BLE no matter what I tried. Thinking that ESPHome maybe just didn't add support for this board yet, I tried to use the Switchbot MQTT by compiling it through Arduino IDE and Platform.IO on VSCode. Neither method worked. Spent hours troubleshooting it before I gave up. Got some mini ESP32 boards from another seller that use micro-usb and both bluetooth proxies via ESPHome and Switchbot MQTT via Arduino IDE worked flawlessly. Save your time and money and go with something else. If I didn't toss the packaging I'd be sending these things back.

Read all of the reviews. The 1-stars are not people being dramatic, not completely anyways, they are full of completely valid points. * This board uses a USB-C port, but cannot actually utilize a USB-C cable and requires an adapter from USB-A to USB-C. Micro USB cables are annoying, I get it. But so is having to have even more adapters sitting around when it is a SIMPLE fix to make this truly support USB-C specifications but they cheaped out with leftover components clearly. * They shouldn't even be allowed to say this has wifi considering the massively limited range. They'd be safer just calling it "near field communication over wifi" or some other terrible marketing garbage to make it clear this stands zero chance at being usable in even a 50% reliable way beyond 5 feet from a router. * This requires the generic and buggy CH340 serial driver for communication adding a completely unnecessary layer of instability and complication. Only the cheapest of the cheapest hardware I have seen relies on this. * The board is in fact so wide that once placed in a common breadboard, you can only access either the left, or the right, pins but not both. So either buy an oversized breadboard or be prepared to just have a ton of wires with the female connectors available to plug directly to the pins. Who needs organization with developing? * They claim it works with Arduino IDE but then provide not even the most bare minimum of steps for how to accomplish that and there are over 100 options to pick from in the default ESP32 board manager library, and none of them directly match. GOOD LUCK! Delete these from existence, Amazon. Return them if you bought them. Don't buy them if you're lucky enough to read this before wasting your money.

I got WLED up on one of these and it seemed to work great. I then unplugged from the pc and moved it to its new home. I could not connect to the device! I put it back into my office (which is right under one of my Ubiquity AP’s) and it connected right away. Where the ESP32 is mounted, is only 20ft away from my AP with line of site, and it is barley connected. It’s signal is so weak that it drops connection multiple times throughout the day. I was really hoping this would work for me. But now I need to find a new ESP board that has a better Wi-Fi antenna.

It seams like a half decent ESP32. Pins did come bent but they worked fine. They need to do better soldering as the headers are a bit crooked but overall a great product if you are on the cheap. I did a test with getting D2 to light up with Arduino IDE and then after loading micropython. Pycharm is able to connect to it and load python scripts and turn on the led as well. If pins were not bent then would be 5 stars.

I'm not sure why it doesn't work, but these things almost never work with a USB-C charger or cable. I tried a dozen and none of them worked. Plug in a USBA to USBC charger and it powers right up. I don't know if that will be a problem for programming, but for me, my PC's built in USB C wouldn't connect. Luckily the USB-C on the back of my RTX 2080 TI was able to connect (this is the only USB-C to USB-C connection I've been able to successfully send data or power to the board). I'm not sure why the RTX 2080 TI can work and others cannot. Regardless, if you want to power these, you will need a USBA charger and a USBA to USBC cable.

The board works fine but I believe it has a design issue in the power delivery that causes wifi not to function correctly when not connected to a super stable power source(I.E. a pc usb port). These boards will not connect to wifi when using any wall power adapter and will only function when powered from a PC or my benchtop variable power supply. There is a protection diode on the board I believe that causes a voltage drop and makes this happen.

I've been using microcontrollers and ESP32's for years. This one is not a good choice. The WiFi performance is horrible. I had to have the ESP32 within a couple feet of my access point in order for it to connect properly. There is no documentation, and no details on which board type to choose in Arduino Development Environment. The unit is not USB Type C compliant.

Good