DFRobot FireBeetle is a series of low-power-consumption development hardware designed for Internet of Things (IoT). Firebeetle ESP8266 is a development board integrated with IoT WiFi, TCP/IP, 32-bit MCU, 10-bit ADC, and multiple interfaces such as HSPI, UART, PWM, I2C, and I2S. In DTIM10, the full power consumption to maintain a WiFi connection reached 1.2mW. Equipped with 16MB outer SPI flash memory, ESP8266 is available for programs and firmware storage. Compatible with Arduino programming enables Firebeetle ESP8266 to lower the barrier of programming. The operator can implement Arduino programming codes directly onto ESP8266 to reduce the difficulty of operating and increase the stability of the esp8266 board. Name WiDo Beetle ESP32 FireBeetle ESP8266 FireBeetle ESP32 SKU DFR0321 DFR0575 DFR0489 DFR0478 Microcontroller CC3000 ESP32 ESP8266 ESP32 Power supply interface USB or DC2.1 USB USB or 3.7V Lipo USB or 3.7V Lipo USB Powered or External (V) 7 - 12 3.5 - 6.5 3.3 - 5.0 3.3 - 5.0 Operating Voltage (V) 5V 3.3V 3.3V 3.3V CPU Frequency (MHz) 16 240 160 240 Flash(M) - 16 16 16 SRAM(KB) - 520 50 520 Analog pins 6 4 1 5 Digital pins 14 4 10 10 Wi-Fi protocol 802.11b/g 802.11b/g/n 802.11b/g/n 802.11b/g/n Frequency range 2.4 GHz 2.4 - 2.5 GHz 2.4 - 2.5 GHz 2.4 - 2.5 GHz UART 1 1 1 1 I2C 1 1 1 1 I2S 1 1 1 1 SPI 1 1 1 1 Compatible IDE Arduino IDE 1.6+ Arduino IDE 1.6+ Arduino IDE 1.6+ Arduino IDE 1.6+ Download Mode Micro USB Micro USB Micro USB Micro USB Arduino UNO Compatible √ × × × Lipo Charger Support × √ √ √ Dimension(mm) 75*54 35*34 58*29 58*29 Weight (g) 30 g 12 g 24 g 24 g Key Features Onboard 2.4G PCB Antenna and SD card slot. Integrate a Dual-Core ESP-WROOM-32 module. Support MCU and Wi-Fi &Bluetooth dual-mode communication. V-shaped gilded I/O interface can be sewn on clothes directly. Arduino、RTOS、microPython Programming Support. Built-in 32-bit Tensilica L106 MCU and 10-bit ADC. Mobile BLE APP Connection Support. Two-way H-bridged Motor Driver with 2A maximum current and wireless socket. In the programming stage, Firebeetle Board-ESP8266 supports RTOS SDK in Linux, Arduino IDE, and Micropython. Tech Note 072 - ESP8266 and MAX30100 blood oximetry and heart-rate sensor display NOTE: There still remain some bugs to be detected and fixed by developers. In some cases, some peripherals may not work perfectly by embedding Arduino sample codes in ESP8266. Much more functions implemented in Arduino are still under development and improvement. An alternative way is to change development tools such as RTOS and MicroPython towards a more operating-friendly experience in some conditions. Project 1. ESP8266 Project: Desktop Weather Station With WIFI Hardware needs: FireBeetle Board-ESP8266 WiFi dev board 2.8" USB TFT Touch Display Screen 3.7V Polymer Lithium lon battery
