3PCS ESP32 Type C Development Board ESP32S Type-C USB WiFi + Bluetooth ESP-WROOM-32 CH340C 2.4GHz Dual Core WiFi NodeMCU Processor Microcontroller ESP32-DevKitC-32

So I have bought these types ESP32 dev boards from a few vendors now. The first set of six I got from a different vendor were great. I ordered 3 more but those all came with counterfeit CP2102 chips on the boards. They had horrible WiFi connections. So I returned them. Then I bought some from a 2nd vendor. Same things counterfeit CP2102 chips. I returned those as well after testing and having the same issues. I then found these with decent reviews and ordered them. I am happy to say these came in with the right CP2102 chips and are working properly with WiFi!I’ll order some more! Plus since these don’t have the pins soldered on it makes my projects that much easier not having to remove them.The real CP2102 chips are labeled “SILABS” all the counterfeit ones I received are “S1LABs” it’s looks close in such small print on the chips but makes all the difference! And a big thank you to this vendor for actually selling what you are advertising!

Great boards for working with the ESP32. Exposes all the necessary pins and works great with the Arduino IDE. With the Arduino IDE, there is no need to hold the boot button to program. I've been told that IS a problem with platform io, but I don't know that firsthand.I've already purchased more of these -- they are now my go to ESP32 dev boards.This appears to exactly match the schematic for a Doit V1 that are available online.Two items I've found working with these:1) If they reboot when attempting to connect to wifi, check your power supply. They pull between 500-600ma instantaneously when connecting, and many computers and hubs will drop the connection at 500ma. If they get assigned a new usb serial port at reboot, this is happening to you.2) There is basically no heat sink copper on the ldo regulator. While it can handle input voltages to 20v, it will overheat and fail quickly dropping that much voltage. I smoked one feeding it 12v at 70-80ma of power draw. If you have a higher voltage power supply, drop it to 5v with a switching regulator ahead of the vin connection.

These ae exactly what they are supposed to be. I use them with ESPHome/Home Assistant. I have added a temperature sensor (SHTC3) and a light sensor (BH1750FVI) to the two separate I2C buses on one board. It has worked perfectly. I am going to add an ultrasonic sensor (HC-SR04) to another of the boards to make a presence sensor for cars in my garage today.

I’m sure it’s a good product, But I’ve tried two of the three boards and both of them did not work when uploading the code. I kept getting error codes, maybe it was my fault.

Two weeks into an Home Assistant project. I needed some BLE sensor data preferably - as a VM - not directly from the HA server. This fit the bill! I had some issues with my Eero network that was a default config issue with ESPHome and not this device. It took a while to diagnose but got there in the end. And now I'm excited about the two extra boards I have left to tinker with. As a tech / product / management guy, long past being a coder, shocked how easy and powerful it all is. If you're like me, google, be patient, stick it out.

One burned out melting how upon use. Other two are fine. Wi-Fi is weak sauce and full of drops unless you power with 5v pins and not USB C.

I finally got these working! Did not need to hold the boot key or anything but I did need to use a good USB cable and lower by baud rate to 460800 for flashing it in Arduino IDE to work.

This design is defective and will have extremely poor wifi performance when powered by the usb c connector , it will only work “properly” when powered with 5v and gnd pins.Waste of time and struggles, avoid this ch340 usb c design