BF2 Development Board (Wi-Fi/BLE)-LeapFive

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BF2 Development Board (Wi-Fi/BLE)

Product Description

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Target Applications

Terminal Devices

Applications

Documentation

Features

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Overview

The FB-BF2-DEV-01 Development Board, embedded with the LF-WM05 module, is designed to provide developers with a convenient Wi-Fi/BLE learning platform. It features user-friendly pin headers, LED indicators, and a Reset button, making it ideal for developing Wi-Fi/BLE IoT devices.

Features

• GPIO

• All Module GPIO Pins are Exposed

• LED Indicator

• Power Indicator

• Status Indicator

• UART Transmission/Reception Indicator

• Jumper for Power Source Switching

• USB Power Supply/Independent Power Supply

• Button Functions

• Independent RESET Button

Features

Supports 802.11 b/g/n standards, frequency range 2400M ~ 2483.5MHz	Peripheral
Includes 276KB SRAM/128KB ROM/1Kb eFuse	▪ 2*UART
Includes 2MB/4MB XIP FLASH	▪ 1*I2C
Operating Voltage: DC 2.5 V ~ 3.6 V	▪ 5*PWM
Wi-Fi/BLE Features	▪ 1*SPI
▪ Wi-Fi supports IEEE 802.11 b/g/n standards	▪ 1*SDIO
▪ Wi-Fi supports STA, SoftAP and Sniffer modes	▪ 1*12bit ADC
▪ PCB onboard antenna	▪ 1*10bit DAC
▪ BLE 5.0	▪ 13*GPIO

Development Board Real Image and Pin Definitions

LFB-BF2-DEV-01 Pin Definition

Components	Component Name	Function Description
LF-WM03	LF-WM03 Wi-Fi Module	IoT Module Based on LF686
I/O	External I/O Ports	Dual-row pin headers exposing GPIO, UART, SPI, I2C, PWM, and other peripherals
JP2	LF-WM03 Power Short Interface	Power control jumper for enabling/disabling the LF-WM03 module
State led	Status Indicator	Blinks during operation mode; dim in download mode
Power led	Power Indicator	Stays lit when the development board is powered on
RST	Reset	Reset button
Mini USB	Mini USB Port	DC5V power supply, program downloading, and debugging interface
Power selected	Power Selected	Select between Mini USB power supply or Power and U1 power supply: Short the right two pins to power the board via the Mini USB port; Short the left two pins and use jumpers to connect the USB interface for power supply.
Power and U1	4-Pin Socket	Serial communication and DC5V power supply
USB-to-UART Bridge	USB-to-UART Bridge	Single-chip USB-to-UART bridge, capable of providing extremely high transmission rates
Data transfer selected	Data Transfer Selection	For firmware download, GPIO16 must be connected; this jumper is used to select GPIO8 or GPIO16 as UART0_TXD