FireBeetle ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips. It supports WiFi and Bluetooth dual-mode communication and features a small size, ultra-low power consumption, on-board charging circuit, and easy-to-use interface, which can be conveniently used for smart home IoT, industrial IoT applications, wearable devices, and so on. You can easily create your own IoT smart home system when connecting it with an IoT platform like IFTTT. FireBeetle ESP32-E supports Arduino programming and will support Scratch graphical programming and MicroPython programming very soon. We provide you with detailed online tutorials and application cases, and there are thousands of sensors with welding-free Gravity interface and actuators to help you get started easily. Besides, the stamp hole design makes it able to be easily embedded in your PCB, greatly saving your costs and time to build and test prototype. Figure 1. Board Overview Figure 2.Pinout 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 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 SKU DFR0478 DFR0654 Microcontroller ESP32-D ESP32-E Power Supply Interface Micro USB USB-C USB to UART CH340C CH340K Operating Voltage (V) 3.3V 3.3V Flash 16MB 4MB SRAM (KB) 520k 520k Analog Pins 5 5 Digital Pins 10 10 UART 1 1 I2C 1 1 SPI 1 1 Side Key × √ RGB_LED × √ DisplayPort (GDI) × √ Stamp Holes × √ Fool-proof × √ Silkscreen underside two-sided Mount Hole Size (mm) 3.5 2 Dimension (mm) 29*58 25.4*60 Weight (g) 24 g 23g Price ($) $6.9 $6.9 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.Features: ESP32 Dual-core low power maincontroller, 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: 10uA Max Discharge Current: [email protected] 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 (802.11nspeed 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: 80mAAverage Support Arduino download with one-key On-chip Clock: 40MHz crystal, 32.768KHz crystal Digital I/O x10Arduino default Analog Input x5Arduino default SPI x1Arduino Default IIC x1Arduino Default I2S x1Arduino 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 Documents:Product wikiProduct Includes: FireBeetle 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
