What is it?

Standard original ESP32-PICO-D4 Chip. ESP32-PICO-D4 integrates all peripheral components seamlessly, including a crystal oscillator, flash, filter capacitors and RF matching links in one single package. You just need a bunch of passive components to have a full working ESP32 with this Chip!

Why did you sell it on tindie?

I personally often ran into the issue that I needed a specific module for a project. As fast and cheap as possible. China wasn't an option because shipping times of 3-4 Weeks. Many local and global distributors like Digikey etc. still doesn't sell modules like ESP-WROOM modules or LoRa Modules. So I started selling those modules directly from my stock with fast shipping from Switzerland.