WiFi 9 Click Board™

Product Code: MIKROE-3666

The WiFi 9 Click Board™ features the PAN9420 a 2.4 GHz 802.11 b/g/n embedded Wi-Fi module with integrated stack and API that minimizes firmware development and includes a full security suite. The module is specifically designed for highly integrated and cost-effective applications. The module includes a fully shielded case, integrated crystal oscillators, and a chip antenna. How Does The WiFi 9 Click Board™ Work? The WiFi 9 Click Board™ comes equipped with the PAN9420, a full embedded Wi-FI module from Panasonic. The module combines a high-performance CPU, high-sensitivity wireless radio, baseband processor, medium access controller, encryption unit, boot ROM with patching capability, internal SRAM, and in-system programmable flash memory. The module's integrated QSPI flash memory is available to the application for storing web content such as HTML pages or image data. Parallel support of access point and infrastructure mode allows easy setup of simultaneous Wi‑Fi connections from the module to smart devices and home network routers.

The pre‑programmed Wi-Fi SoC firmware enables client (STA), micro access point (µAP), and Ad‑hoc mode (Wi-Fi Direct) applications. With the transparent mode, raw data can be sent from the UART to the air interface to smart devices, web servers, or PC applications. For working with PAN9420 module at your disposal are two data UART interfaces, one for command and another for transparent data. In order to enable simultaneous communication between the module and host MCU through one UART on mikroBUS™ socket we have added 74HC4052 multiplexer from Nexperia USA Inc. For selecting between UART0/UART1 you may use ADR pin (ADDRES): ADR pin state Module pins Selected Interface LOW TXD0/RXD0 UART0 HIGH TXD/RXD UART1 On the WiFi 9 Click Board™ several status LED's are implemented for easiest visual monitoring of the module states like MCU heartbeat, IP connectivity, Errors, WiFi connection and Booting. The PAN9420 supports Over-the-Air firmware updates. In order to make use of this feature, the customer needs to ensure that the appropriate preconditions are fulfilled and that a suitable environment is provided, particularly with regard to: Module configuration Utilization of the related module interface commands Server infrastructure and application The PAN9420 module is operated at 3.3V. Having in mind its absolute maximum ratings, it is not advisable to use the Click board™ with MCUs that use logic voltage levels up to 5V. SPECIFICATIONS Type WiFi Applications The WiFi 9 Click Board™ all necessary IoT functionality perfectly suited for IoT applications which require simultaneous support of Access-Point- and Infrastructure mode On-board modules Full featured standalone WiFi module PAN9420 from Panasonic, a 2.4 GHz ISM module which includes a wireless radio and an MCU Key Features Full-featured embedded network stack, integrated webserver, over-the-air firmware updates, integrated QSPI flash memory for customer web contents or configuration file storing Interface GPIO,UART Compatibility mikroBUS Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V PINOUT DIAGRAM This table shows how the pinout of the WiFi 9 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes Address Select ADR 1 AN PWM 16 MCU MCU Reset Reset RST 2 RST INT 15 CTS Clear to Send Request to Send RTS 3 CS RX 14 TX UART Transmit NC 4 SCK TX 13 RX UART Receive NC 5 MISO SCL 12 NC NC 6 MOSI SDA 11 NC Power Supply 3.3V 7 3.3V 5V 10 NC Ground GND 8 GND