FireBeetle 2 ESP32-E IoT Microcontroller (32M / 512KB, Supports Wi-Fi & Bluetooth) แถม pin headers - บอร์ดแท้จาก DFRobot

What's the difference between FireBeetle ESP32-E and FireBeetle ESP32?

- ESP32-E uses a data encryption chip to protect program security

- ESP32-E is equipped with a DFRobot GDI(General Display Interface) to connect screens

- Software are ecologically compatible with both ESP32 and ESP32-E, except for minor changes in pin mapping

- ESP32-E cannot use expansion board for ESP32 V4.0

SPECIFICATION

DOCUMENTS

SHIPPING LIST

Note on recent changes:
Espressif has recently released one wafer-level change on ESP32 Series of products: ESP32-E.
Below are the main design changes in ESP32-E Series of chips: 
1. PSRAM Cache Bug Fix: Fixed “When the CPU accesses the external SRAM in a certain sequence, read & write errors can occur”.
2. Fixed “When each CPU reads certain different address spaces simultaneously, a read error can occur.”
3. Optimized 32.768 KHz crystal oscillator stability, the issue was reported by client that there is a low probability that under ESP32-D hardware, the 32.768 KHz crystal oscillator couldn’t start properly.
4. Fixed Fault injection issues regarding secure boot and flash encryption are fixed.
5. Improvement: Changed the minimum baud rate supported by the CAN module from 25 kHz to 12.5 kHz.