Espressif ESP8285 is just like ESP8266 but with 1MB built-in Flash, and Designed for Wearables

Orange Pi Development Boards

Espressif announced ESP8285 WiFi SoC was entering production last March. The new processor is based on ESP8266, but the company added 1MB built-in flash to make the solution smaller, and more suitable to wearables such as smartwatches and activity trackers.

ESP8285
A.I. Thinker ESP8285 Module

ESP8285 features a Tensilica L106 32-bit MCU and another ultra-low-power 16-bit RISC core, as well as 802.11 b/g/n/d/e/i/k/r WiFi connectivity. AI Thinker has already produced a tiny module based on the solution, called ESP-8285, and another person has developed an ESP8285 development board sold on Tindie for $24.95, and with some code sample (Arduino sketches) on Github.

ESP8285_Development_Board
Espressif ESP8285 Development Board

You’ll also find some more technical information on a Devacron blog post, or inside the datasheet on Espressif website.

ESP8285 Block Diagram
ESP8285 Block Diagram

Via Hackaday

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ESP8285: I think all they did was bring the flash chip inside the chip carrier. Even the GPIO lines used for the external flash with the ESP8266 are now gone on the ESP8285. This development is OK provided it results in cheaper modules. We’ll have to wait and see.