XTVTX 2 Pcs ESP32 Breakout Board ESP32 Expansion Board 38Pin Development Board with Wireless WiFi Bluetooth for ESP-WROOM-32 Microcontroller Development Board

These dimensions might be 0.3mm on the large size as im printing a housing to go around the terminals to make sure they never rotate (as I typically break them by tighting the terminals a bit too much) and to help mounting and vibrationOh and im soldering a gyro and acc to it

In common with many other reviews, this board is wrongly sized for the associated ESP32 boards. Why does Amazon allow this issue to continue???I have purchased this product on two occasions. First, in October 2024 the board was printed 0616. This board is fiune with all my ESP32 and lateral pitch between DIL rows is 25.8mm Sadly, although these boards appear to be electrically OK, they are warped.The second occasion produced boards printed "FOR ESP32 TERMINAL ADAPTOR" and having a pitch between rows of 23.7mm. These boards do not fit either of my ESP32 types, and certainly not the ESP32 boards with which they are linked, and sold.So - it seems there are two distinct types of boards, and those currently available are unsuitable. Really time that Amazon recognized thgis as a generic issue and did their own QC check

Quick delivery and exactly as described.

The pin spacing was a bit off but with a bend of the socket it fitted all be it tight

Got these as the breadboard on my current project was getting really messy.Don't think they'd last too long with repeated use as a prototyping board but as a permanent solution they're fine.Headers for the ESP32 are solid and line up perfectly and terminal blocks are okay.No problems with shorts or dodgy connections.I'm using 1.5mm multicore wire on some of the connections which is a snug fit but that's overkill on my part.All in all, very pleased for the money.

Not sure why some reviews talk about pin spacing issues as my ESP32-WROOM-32D devices fit perfectly. Really good for wiring up the ESP32 in production mode with external power supplies for example and being able to unplug the ESP32 for re-programming without interfering with external power supplies, or to enable easy replacement in the field should the device fail in the future. Picture shows a prototype device with ESP32 driving 8 mains solid state relays with six DS18B20 bus oriented (single data wire) temperature sensor inputs and it all works brilliantly.

There are several variants of the ESP32 product. There are different numbers of pins and the width of the boards can be different . It is important to get this right when you order otherwise you risk having to return the product.My complaint is that I re ordered this product. The first time I bought it it fitted and worked perfectly. On reorder the dimensions had changed and the pins no longer fitted. You can see this problem in photos provided by another reviewer.