FireBeetle 2 ESP32-E IoT Microcontroller with Header (Supports Wi-Fi & Bluetooth)(DFR0654-F)

Espressif has recently released one wafer-level change on ESP32 Series of products (ECO V3). Below are the main design changes in ECO V3 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 the client that there is a low probability that under ECO V1 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.

FEATURES

· ESP32 Dual-core low power main controller, 10uA power consumption

· WiFi+Bluetooth 4.0 Dual-mode Module

· GDI Display Port, easy to connect

· Onboard Charging Circuit and PH2.0 lithium Battery Interface

SPECIFICATION

· Operating Voltage: 3.3V

· Input Voltage: 3.3V~5.5V

· Support Low-Power: 2mA

· Max Discharge Current: 600mA@3.3V LDO

· Max Charge Current: 500mA

· Support USB Charging

· Processor: Tensilica LX6 dual-core processor (One for high-speed connection; one for independent application development)

· Main Frequency: 240MHz

· SRAM: 520KB

· Flash: 4MB

· Wi-Fi Standard: FCC/CE/TELEC/KCC

· Wi-Fi Protocol: 802.11 b/g/n/d/e/i/k/r (802.11n，speed up to 150 Mbps), A-MPDU and A-MSDU Aggregation, support 0.4us guard interval)

· Frequency Range: 2.4~2.5 GHz

· Bluetooth Protocol: Bluetooth v4.2 BR/EDR and BLE standard compliant

· Bluetooth Audio: CVSD and SBC audio

· Operating Current: 80mA（Average）

· Support Arduino download with one-key

· On-chip Clock: 40MHz crystal, 32.768KHz crystal

· Digital I/O x10（Arduino default）

· Analog Input x5（Arduino default）

· SPI x1（Arduino Default）

· IIC x1（Arduino Default）

· I2S x1（Arduino Default）

· RGB_LED: 5/D8

· Connector: FireBeetle V2 series compatible

· Operating Temperature: -40℃~+85℃

· Module Size: 25.4×60mm/1×2.36”

· Mount Hole Size: inner diameter of 2.0mm