ESP32-PRO – IoT board with 4MB RAM and FLASH and external crypto unit

News2017-06-22
Auhtor: Petr Šrámek

Olimex develops new devices and development boards.

The focus of Olimex got ESP32 (WiFi&BT), Olimex released article on their website about a new IoT (Internet of Things) board called ESP32-PRO. Maybe you saw Olimex ESP32-EVB – ESP32, CAN, Ethernet news.

The board ESP32-PRO contains external 4MB RAM, 4MB FLASH and external crypto unit.

The device is in development process. Olimex designers had to solve a lot of problems.

So, it confirms that documenatation by espressif is not so good and in begin part you can find any problems with design of board. A few problems are not mentioned in their documents or in reference design.

Olimex designers choose PIC32MX270F256DT microcontroller for connection between laptop and ESP32 through USB-OTG.

The crypto unit is ATECC508A (SHA-256) by Microchip.

The ESP32 PRO contains IC charger for LiPo batteries.

Github of project on https://github.com/OLIMEX/ESP32-PRO

ESP32-PRO news on olimex website on https://olimex.wordpress.com/2017/06/21/esp32-pro-new-iot-board-with-4mb-external-ram-4mb-external-flash-external-crypto-engine-lipo-charger/

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