README.md

# AIROC™ BTSDK - CYW20820

### Overview

The Infineon CYW20820 and CYW89820 are ultra-low-power dual-mode Bluetooth® 5.4 wireless MCU devices. They have a stand-alone baseband processor with an integrated 2.4 GHz transceiver supporting LE/BR/EDR,and an internal Power Amplifier (iPA) with programmable BDR transmit power up to 10.5 dBm.  CYW208XX refers to both parts

## SDK Software Features
- Dual mode Bluetooth® stack included in the ROM (BR/EDR and LE).
- Bluetooth® stack and profile level APIs for embedded Bluetooth® application development.
- AIROC™ HCI protocol to simplify host/MCU application development.
- APIs and drivers to access on board peripherals.
- Bluetooth® protocols include GAP, GATT, SMP, RFCOMM, SDP, AVDT/AVCT
- LE and BR/EDR profile APIs, libraries, and sample apps.
- Support for Over-The-Air (OTA) upgrade.
- Device Configurator for creating custom pin mapping.
- Bluetooth® Configurator for creating LE GATT Database.
- Documentation for APIs, datasheet, profiles, and features.

## Kits Supported
#### CYW920820EVB-02:
- 62-FBGA package, 10.5 dBm internal power amplifier, Arduino compatible headers,
  9-axis motion sensor and thermistor, user switches and LEDs, USB connector for
  power, programming, and USB-UART bridge.<br>
  Max UART baud rate is 3M

#### CYW989820EVB-01:
- 48-WQFN package, 10.5 dBm internal power amplifier, Arduino compatible headers,
  9-axis motion sensor and thermistor, user switches and LEDs, USB connector for
  power, programming, and USB-UART bridge.<br>
  Max UART baud rate is 3M

#### CYW989820M2EVB-01:
- 48-WQFN package, Arduino compatible headers, an ambient light sensor, thermistor,
  Infineon digital microphone, user switches and LEDs, USB connector for power, programming, and
  USB-UART bridge.<br>
  Max UART baud rate is 3M

#### CYW920820M2EVB-01:
- 62-FPBGA package, Arduino compatible headers, ambient light sensor, thermistor,
  footprint for analog microphone, footprint for Infineon digital microphone, user
  switches and LEDs, USB connector for power, programming, and USB-UART bridge.<br>
  Max UART baud rate is 3M

#### CYBT-243053-EVAL:
- CYW20820-based dual-mode (LE/BR/EDR) Bluetooth&#174; 5.4-compliant fully certified module
  (CYBT-243053-02), Arduino compatible headers for hardware expansion, user switches
  and LEDs, FCC, ISED, MIC, and CE Certified Module on board (CYBT-243053-02),
  USB connector for power, programming, and USB-UART bridge.<br>
  Max UART baud rate is 1M. Use baud rate of 115200 for Client Control.

#### CYBT-253059-EVAL:
- CYW20820-based dual-mode (LE/BR/EDR) Bluetooth&#174; 5.4-compliant fully certified module
  (CYBT-253059-02), Arduino compatible headers for hardware expansion, user switches
  and LEDs, FCC, ISED, MIC, and CE Certified Module on board (CYBT-253059-02),
  USB connector for power, programming, and USB-UART bridge.<br>
  Max UART baud rate is 1M. Use baud rate of 115200 for Client Control.

#### Vela-IF820-INT-ANT-DVK:
- Vela IF820 Integrated Antenna DVK Board (453-00171-K1) with on-board Vela IF820 Module (453-00171),
  CYW20820-based dual-mode Bluetooth&#174; (LE/BR/EDR) and Bluetooth&#174; 5.4 certified,
  FCC, ISED, CE, UKCA, MIC, RCM and KCC Certified Module on board.
  DVK supports MikroBus and Qwicc connectors for easy sensor board additions,
  simple headers and jumpers for all I/O, LEDs, buttons and switches.<br>
  Max UART baud rate is 1M. Use baud rate of 115200 for Client Control.

#### Vela-IF820-EXT-ANT-DVK:
- Vela IF820 External Antenna DVK Board (453-00172-K1) with on-board Vela IF820 Module, MHF4 Connector (453-00172),
  CYW20820-based dual-mode Bluetooth&#174; (LE/BR/EDR) and Bluetooth&#174; 5.4 certified,
  FCC, ISED, CE, UKCA, MIC, RCM and KCC Certified Module on board.
  DVK supports MikroBus and Qwicc connectors for easy sensor board additions,
  simple headers and jumpers for all I/O, LEDs, buttons and switches.<br>
  Max UART baud rate is 1M. Use baud rate of 115200 for Client Control.