AITRIP3PCS Development Board 2.4 GHz Dual Core WLAN WiFi + Bluetooth 2-in-1 Microcontroller ESP-WROOM-32 Chip CP2102 38 pins for ESP32 for Arduino

My experience with the AITRIP 38 pins development board left much to be desired, and let me tell you, it was a fiery one. This concise review will highlight the negative aspect of this MCU, sprinkled with a touch of sarcastic humor.Now, let's get straight to the point of contention: the inconvenient and potentially disastrous feature that can turn your precious MCU into molten lava within minutes. It turns out that this board has a rather nasty habit of heating up if you dare to apply power to the V+ pin-out while simultaneously connecting the USB cable. Who knew that such a simple act of plugging in a USB cable could have such fiery consequences?To work around this perilous situation, one must engage in an infuriating dance of power toggling. Yes, in order to program the unit, you'll need to first shut off the power to the V+ pin before daring to connect the USB cable. It's a process that feels like a relentless test of patience and a true exercise in frustration.Sure, there are potential workarounds involving additional electronics, but come on—shouldn't it be a no-brainer that an MCU doesn't transform into magma when you plug in a USB cable? Apparently, AITRIP missed the memo on that one. They do offer a different 32 pin MCU that handles this scenario without the risk of burning up, so perhaps that would be a more sensible choice.In conclusion, the AITRIP 38 pins development board proved to be an inconvenient and potentially hazardous option. Its tendency to heat up when power is applied to the V+ pin while connecting the USB cable is nothing short of a burning frustration. If you value the safety of your MCU and wish to avoid the need for dangerous power toggling, I recommend exploring the alternative 32 pin MCU from AITRIP instead. Trust me, it's a much cooler choice—literally.

Summary: I purchased these ESP32 modules for use in some WLED projects and experiments. They worked fine and the USBC connecter instead of the typical Micro-USB connector for power and programming is really nice! They worked exactly as expected out of the box (bag).The Pros: * USB C uses CP2102 Chip so easy to connect to Windows 10 *Decent on-board Power Regulator * All worked as expected 👍🙂The Cons: The Silk-screening that identifies the pins is only on the *bottom* side where it cannot be seen if you have the unit placed in a breadboard

It's super convenient to be able to pick up a 5-pack of ESP32's for a project with a quick turn-around time. I needed to prototype the interactions for an art installation with 4 weeks of lead time. All 5 of my boards powered on and programmed right away (had to hold down one of the buttons to properly program, the button that's NOT EN). However, over the next few weeks as I shifted to making something that would be reliable for several months, the lower quality of the boards started coming through. Some of the boards had the headers soldered at a slight angle, which made them impossible to breadboard without forcibly bending the pins. Two of the boards had failed by the time I needed to finish the installation, and I didn't do anything to let out any magic smoke as I was using them. Luckily, I only needed three for the final version, but I'm not totally sure those will stay alive for the duration of the exhibit, so I'll go for higher-priced, but hopefully higher-quality ESP's for replacements.

I really like the USB C and the build quality seemed good. However the WiFi is somewhat broken. I verified across several boards that is can connect to my google nest wifi but not a DDWRT buffalo router or a brand new travel router I bought for a project. Other ESP32 and other 8266 can connect just fine to all 3 WiFi but for some reason these chips refuse to fully connect. I was monitoring the DDWRT wireless clients page and would see it briefly connect then disconnect. I tried different power sources as well PC USB and 2.1A cell phone charger. If it connects to your WiFi they are great boards, but this is a deal breaker for me.

Works but one came with all the pins bent

I'm working on a shock and tilt-driven display that takes input from a 9 axis accelerometer and writes to an 8 X 32 WS2812B LED matrix. The micro controller meets all expectations.Note that GPIO pins 8 - 13, the Flash pins, are unusable, so you might as well buy the smaller version. But it's no big deal. Also, the pinout is out of order, again no big deal. I don't know if any breakout boards have the pins in numeric order.I would buy them again.

Warning: The dimensions, at least the width, is inaccurate. I have a very space tight area, and it is NOT 25.4mm, it's >25.5mm, which for me is just a touch too wide.Update: Further, I've found that IO15 (pin 23) is not connected to the ESP32 module, and I presume neither is IO9 since it has a square pad, just the same. So something to beware of!

This product is good for tinkering at a good price.