The ECO V3 series by Espressif brings significant changes to the design of ESP32 products:

• Fixed PSRAM Cache issue: Resolved the problem that caused read and write errors when the CPU accessed external SRAM.
• Fixed read error: When CPUs access different memory addresses simultaneously, a read error may occur.
• Improved stability of the 32.768 KHz crystal: Enhanced the startup of the crystal compared to previous models.
• Fixed security issues: Related to secure boot and memory encryption.
• Improvement: Updated the minimum baud rate of the CAN module from 25 kHz to 12.5 kHz.

Features:

• Dual-core ESP32, low power consumption, with a consumption of 10uA.
• WiFi+Bluetooth 4.0 Dual-mode Module.
• GDI Display Port, easy connection.
• Integrated charging circuit and PH2.0 battery socket.

Specifications:

• Operating Voltage: 3.3V.
• Input Voltage: 3.3V~5.5V.
• Low Power Support: 2mA.
• Maximum Discharge Current: [email protected] LDO.
• Maximum Charge Current: 500mA.
• USB Charging Support.
• Processor: Tensilica LX6 dual-core.
• 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.
• Frequency Range: 2.4~2.5 GHz.
• Bluetooth Protocol: Bluetooth v4.2 BR/EDR and BLE.
• Bluetooth Audio: CVSD and SBC.
• Operational Current: 80mA (Average).
• One-button Arduino support.
• Crystal frequency: 40MHz crystal, 32.768KHz crystal.
• Digital Input 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: Compatible with FireBeetle V2.
• Operating Temperature: -40℃~+85℃.
• Module Size: 25.4×60mm/1×2.36”.
• Mounting Hole Size: internal diameter 2.0mm.