FireBeetle 2 ESP32-E is a main controller board based on the ESP-WROOM-32E chip, specifically designed for IoT applications. It features dual-core chips and supports WiFi and Bluetooth dual-mode communication. It is small, ultra-low power, has an onboard charging circuit, and an easy-to-use interface, making it suitable for use in smart home IoT, industrial IoT, wearable devices, and more. With the ability to connect to an IoT platform like IFTTT, it is easy to create your own smart home system.
FireBeetle 2 ESP32-E supports Arduino programming, and will soon support Scratch graphical programming and MicroPython programming. Detailed online tutorials and application cases are provided, along with access to thousands of sensors and actuators with welding-free Gravity interfaces to help you get started easily. Its stamp hole design allows for easy embedding in your PCB, saving time and costs in building and testing prototypes.
Board Overview
Pinout
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
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ESP32 Dual-core low power main controller, 10uA power consumption
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WiFi+Bluetooth 4.0 Dual-mode Module
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GDI Display Port, easy to connect
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Onboard Charging Circuit and PH2.0 lithium Battery Interface
Specifications
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Operating Voltage: 3.3V
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Input Voltage: 3.3V~5.5V
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Support Low-Power: 2mA
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Max Discharge Current: 600mA@3.3V LDO
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Max Charge Current: 500mA
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Support USB Charging
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Processor: Tensilica LX6 dual-core processor (One for high-speed connection; one for independent application development)
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Main Frequency: 240MHz
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SRAM: 520KB
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Flash: 4MB
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Wi-Fi Standard: FCC/CE/TELEC/KCC
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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)
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Frequency Range: 2.4~2.5 GHz
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Bluetooth Protocol: Bluetooth v4.2 BR/EDR and BLE standard compliant
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Bluetooth Audio: CVSD and SBC audio
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Operating Current: 80mA（Average）
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Support Arduino download with one-key
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On-chip Clock: 40MHz crystal, 32.768KHz crystal
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Digital I/O x10（Arduino default）
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Analog Input x5（Arduino default）
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SPI x1（Arduino Default）
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IIC x1（Arduino Default）
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I2S x1（Arduino Default）
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RGB_LED: 5/D8
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Connector: FireBeetle V2 series compatible
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Operating Temperature: -40~+85C
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Module Size: 25.4×60mm/1×2.36”
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Mount Hole Size: inner diameter of 2.0mm
Package Contents
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FireBeetle 2 Board ESP32-E with Header x1
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18pin-2.54mm Pitch Pin x1
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18pin-2.54mm Pitch Pin Female x1
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14pin-2.54mm Pitch Pin x1
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14pin-2.54mm Pitch Pin Female x1
Resources
