ISMART 43903-E Arduino Shields – Wi-Fi 2.4 GHz

ISM43340C Shield part

The ISMART43903-E (Inventek Systems Module Arduino Test) IoT platform is a user-friendly Arduino form factor, 3.3V shield . The ISMART43903-E shield is assembled with the Inventek eS-WiFi ISM43903-R48-L54-E/U module.

 The Wi-Fi module hardware consists of a Cypress CYW43903 SOC with ARM Cortex-R4 clocked at 160 MHz (in 1× mode) or up to 320 MHz (in 2× mode), an integrated antenna or optional external antenna, 1 MB of SRAM and 640 KB ROM available for the applications processor.

The ISMART shield is an embedded wireless internet connectivity platform for IoT development. It can be used as a stand alone development board running Inventek IWIN: AT commands software or Cypress WICED SDK. The ISMART boards plug into a variety of microcontrollers shields, such as ST Micro, Cypress PSOC, Analog Devices, Intel and others.  Sample projects are available in IWN Support (IWIN – MCU reference designs).

The ISMART shield supports the following Inventek eS-WiFi modules that all support our standard L44 & L54 compatible footprint:

  New ISMART43903-E : 2.4 GHz 802.11 b/g/n  based on Cypress CYW43903 SOC with Cortex R4

The ISMART shield can interfaces with a variety of microcontrollers and we have sample projects on how to setup and use the IWN AT command software running on an external microcontroller :

Cypress PSOC 4
Analog Device

The shield is compatible with the Arduino UNO R3 3.3V connector layout (without software support for Arduino). The Wi-Fi module requires no operating system and contains an integrated TCP/IP stack running on the module core. The module hardware can be used with Inventek’s AT Command set (IWIN) or with Cypress WICEDTM SDK.

ISMART Hardware Users Manual

Hardware Features

Uses one of the Inventek eS-WiFi modules:

General Features  Supported

Based on module Type

  • Bluetooth 4.0 or 4.2  including BLE support.
  • 2.4GHz (ISM43362,ISM43903,ISM4343,ISM43364) or 2.4/5 GHz (ISM43340), chip antenna on module.
  • U.FL external antenna connector option for all modules
  • Configurable using Inventek AT Commands FW (IWIN).
  • Host interface: UART, SPI.
  • Input Power: 3.3- 5.0 V
  • Dual Port FTDI for firmware development and testing.
  • SPI Flash for Over The Air (OTA) updates
  • FCC, IC and CE approval on all module options.
  • All eS-WiFi module options also support a standard L44 or L54 form factor to enable customers to migrate between module options once in mass production without requiring any board layout changes.

ISM43340C Shield part

Product Documentation

Technical Resources

Software Scripts Examples

Product Resources


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