FireBeetle ESP8266 IoT Microcontroller (Supports Wi-Fi)

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.

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