ESP32-S2 is coming

[Andreas]

May 2019 announcement

https://www.espressif.com/en/news/espressif-announces-
esp32-s2-secure-wi-fi-mcu

Espressif ESP32-S2 Secure WiFi MCU Comes with an Xtensa LX7 Core @ 240 MHz

July 2019 beta shipping

The ESP32-S2, Is It Almost Ready?

[poesel]

Kein Bluetooth

[Andreas]

https://www.reddit.com/r/esp32/comments/cny0tb/esp32s2_vs_esp32_comparison_table/

@poesel

Kein Bluetooth.

Das stimmt. Dafür aber

@Brian Benchoff

and interestingly full-speed USB OTG support.

New Part Day: Espressif Announces ESP32-S2 With USB

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– https://twitter.com/EspressifSystem/status/1108044835766689792
– Espressif’s “Chip7 2-2-A” spotted in the wild

[Andreas]

Just two little updates on this.

rudi ;-) (eMbeddedHome)

John Lee (EspressifSystem)

[Andreas]

John Lee (EspressifSystem)

[Andreas]

A Comparison of the New ESP32-S2 to the ESP32 | ESP8266

A short excerpt which sparked my interest:

But the best feature about this new microcontroller is the ULP co-processor based on the RISC-V architecture. That should mean very low power consumption and more processing power compared to the one in the ESP32. The ESP32-S2 is also capable of dynamically turning off the Wi-Fi transceiver when not in use to save power. This allows for low power even with the Wi-Fi “on” pinging the router.

The datasheet talks about a low power mode of just 5uA (!!) and 24uA at 1% duty cycle. That means you can finally have a battery-operated Wi-Fi-enabled device — something not really feasible with previous versions (you don’t want to change batteries every week, do you?).

[Andreas]

All about the ESP32-S2 by Espressif Systems from Adafruit

Limor Fried und einer ihrer Kollegen von Adafruit geben einen kleinen Überblick über den neuen ESP32-S2 Chip von Espressif. CircuitPython wird den Chip aufgrund des nativen USB-Supports über TinyUSB ebenfalls unterstützen.

Now, after being announced in September of 2019, the ESP32-S2 is finally making it into hobbyist’s hands. On the face of it, the S2 seems less capable, with a single core and no Bluetooth or Ethernet. But with a much faster CPU, scads more GPIO, more ADCs, a RISC-V co-processor, native USB, and the promise of very low current draw, it could be that the ESP32-S2 proves to be even more popular with hobbyists as it becomes established.

WE ARE BACK! #deskofladyada All about the ESP32-S2 by Espressif Systems

Weiterführende Links

• https://blog.adafruit.com/2019/09/02/esp32-s2-a-low-power-2-4-ghz-wi-fi-system-on-chip-datasheet-and-more-espressifsystem-esp32-esp32s2-esp32-s2/
• https://blog.adafruit.com/2020/04/10/tinyusb-esp32-s2-support-merged-and-a-live-stream-in-4-hours-about-it/
  • https://github.com/hathach/tinyusb/pull/319
• WE ARE BACK! #deskofladyada All about the ESP32-S2 by Espressif Systems @adafruit @EspressifSystem #ESP32S2 get it on @digkey « Adafruit Industries – Makers, hackers, artists, designers and engineers!
• Hackaday.io hosts: ESP32-S2 Hack Chat with Adafruit #ESP32S2 @Hackadayio @Adafruit « Adafruit Industries – Makers, hackers, artists, designers and engineers!
  • ESP32-S2 Hack Chat With Adafruit | Hackaday
  • ESP32-S2 Hack Chat with Adafruit | Hackaday.io
• ESP32-S2-WROVER Module - 4 MB flash and 2 MB PSRAM : ID 4653 : $5.95 : Adafruit Industries, Unique & fun DIY electronics and kits

[Andreas]

@Andreas

aufgrund des nativen USB-Supports

Das bedeutet, dass die Programmierung (Upload der Firmware) über USB DFU - The USB Device Firmware Upgrade standard - Openmoko per dfu-util erfolgen kann.

• https://twitter.com/eMbeddedHome/status/1259996578993053702
• https://twitter.com/StetelThings/status/1257260499911262208

[clemens]

A nice comparison from Andreas Spiess

The new ESP32-S2: How relevant is it for the Makers? First tests