Re:Die Shots of the Raspberry Pi RP2040
by mmoskal on Friday January 29, 2021 @09:09PM
(#25965307)
ESP32-S2 has both WiFi and USB. It's essentially (the classic) ESP32 cut to a single core, 320KB RAM, and with Bluetooth removed; however it does include USB.
There's also ESP32-S3 which is dual core, with more RAM, USB, and Bluetooth, but I'm not sure any boards are available yet.
All of that not to be confused with ESP32-C3 which is a single-core RISC-V without USB.
And yes, their naming is confusing.
edit: Adafruit has some boards with ESP32-S2. If you get a random board from elsewhere, there are good chances it will come with a USB-to-serial chip, which you don't want if you need to use native USB. So check.
There's also ESP32-S3 which is dual core, with more RAM, USB, and Bluetooth, but I'm not sure any boards are available yet.
All of that not to be confused with ESP32-C3 which is a single-core RISC-V without USB.
And yes, their naming is confusing.
edit: Adafruit has some boards with ESP32-S2. If you get a random board from elsewhere, there are good chances it will come with a USB-to-serial chip, which you don't want if you need to use native USB. So check.