FireBeetle 2 ESP32-E supports Arduino programming and will soon support Scratch graphical and MicroPython programming. We provide you with detailed online tutorials and application cases, and there are thousands of sensors with welding-free Gravity interfaces and actuators to help you get started quickly. Besides, the stamp hole design makes it easily embedded in your PCB, significantly saving your costs and time to build and test a prototype.
Note: FireBeetle 2 and FireBeetle pins and sizes are incompatible, and neither are the expansion boards.
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Board Overview
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Pinout
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What's the difference between FireBeetle 2 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 like DFR0664/DFR0649/DFR0665/DFR0669
-Software are ecologically compatible with both ESP32 and ESP32-E, except for minor changes in pin mapping
-ESP32-E cannot use an expansion board for ESP32 V4.0
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SKU
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DFR0478
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DFR0654
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Microcontroller
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ESP32-D
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ESP32-E
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Power Supply Interface
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Micro USB
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USB-C
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USB to UART
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CH340C
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CH340K
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Operating Voltage (V)
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3.3V
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3.3V
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Flash
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16MB
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4MB
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SRAM (KB)
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520k
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520k
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Analog Pins
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5
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5
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Digital Pins
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10
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10
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UART
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1
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1
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I2C
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1
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1
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SPI
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1
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1
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Side Key
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×
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√
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RGB_LED
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×
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√
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DisplayPort (GDI)
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×
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√
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Stamp Holes
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×
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√
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Fool-proof
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×
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√
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Silkscreen
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underside
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two-sided
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Mount Hole Size (mm)
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3.5
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2
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Dimension (mm)
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29*58
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25.4*60
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Weight (g)
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24 g
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23g
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Espressif has recently released one wafer-level change on the ESP32 Series of products: ESP32-E. Below are the main design changes in the 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 client reported that there is a low probability that the 32.768 KHz crystal oscillator couldn’t start properly under ESP32-D hardware.
4. Fixed Fault injection issues regarding secure boot and flash encryption are fixed.
5. Improvement: The minimum baud rate supported by the CAN module was changed from 25 kHz to 12.5 kHz.
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FEATURES
- ESP32 Dual-core low power central 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
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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: 32Mbit
- 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
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SHIPPING LIST
- FireBeetle 2 Board ESP32-E x1
- 18pin-2.54mm Pitch Pin x1
- 18pin-2.54mm Pitch Pin Female x1
- 14pin-2.54mm Pitch Pin x1
- 14pin-2.54mm Pitch Pin Female x1
