Overview

This guide contains tutorials for working with the Vela IF820 dual-module Bluetooth® 5.4 Module based on the Infineon Technologies AIROC™ CYW20820 SoC.

Laird Connectivity’s Vela IF820 brings all of Laird Connectivity’s industry competence and capabilities into one solution. The module provides:

  • Bluetooth® BR / EDR & Bluetooth® LE v5.4
  • Wide range of MCU peripherals: UART, I2C, SPI, ADC, GPIO, PWM, Counter, Timer, Watchdog QSD, Programmable Key Scan
  • Industrial Temp Rating (-40° to +85 °C)
  • Fully featured development kits
  • Powerful Cortex-M4 96MHz Core / 256kB FLASH / 176kB RAM / 1MB ROM

Operating Modes

EZ-Serial

EZ-Serial is a firmware platform built on top of the Vela IF820 Module, providing an easy-to-use method for accessing the most common hardware and communication features for dual-mode Bluetooth® applications. It uses a UART-based API for use with an external host MCU. Laird Connectivity provides open-source Python host samples to test common use cases.

EZ-Serial supports cable replacement capability for both Bluetooth® Classic and Low Energy.

For more information see EZ-Serial Development

HCI

The Vela IF820 includes a HCI UART interface that can be used with an external host. The UART physical interface is a standard, 4-wire interface (RX, TX, RTS, and CTS) with adjustable baud rates from 115200 bps to 3 Mbps.

For more information see HCI Development

Custom Firmware Development

The Vela IF820 is fully supported by the Infineon ModusToolbox™. ModusToolbox™ releases provide the latest ROM patches, drivers, and sample applications allowing customized applications using the CYW20820 to be built quickly and efficiently.

For more information see Custom Firmware Development

Additional Resources