Ambient 4 Click Board
Ambient 4 Click Board
The Ambient 4 Click Board™ is a light intensity-sensing and measuring Click Board™, which features an accurate, light-intensity sensor labelled as BH1721FVC, made by ROHM Corporation. It offers a high measurement accuracy in the range between 1x to 1.35x of the actual light intensity. The spectral response of the sensor is calibrated to closely match the spectral response of the human eye. Thanks to its high level of integration, the sensor requires a minimal number of external components, allowing the Click Board™ to incorporate an additional level translating IC, ensuring a reliable data transfer over the industry-standard I2C interface.
Software Support
We provide a library for the Ambient 4 Click Board™ on our LibStock page , as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.
Library Description
The library contains all the necessary functions for working with Ambient 4 click.
Key Functions
void ambient4_sendCommand(uint8_t cmd)
- Function for send commanduint16_t ambient4_readData
- Function for read 16bit datavoid ambient4_deviceReset()
- Function for device reset
Example Description
The application is composed of the three sections:
- System Initialization - Initializes I2C module and set RST pin as OUTPUT
- Application Initialization - Initialization driver init and power ON chip and set resolution mode
- Application Task - (code snippet) - Read ambient light in [lx] and logs data to USBUART every 1 sec.
void applicationInit() { readValue = ambient4_readData(); IntToStr(readValue, demoText); mikrobus_logWrite(" Ambient light: ", _LOG_TEXT); mikrobus_logWrite(demoText, _LOG_TEXT); mikrobus_logWrite(" lx ", _LOG_LINE); Delay_1sec(); }
The full application code, and ready to use projects can be found on our Libstock page.
Other MikroElektronika libraries used in the example:
- I2C
Additional Notes and Information
Depending on the development board you are using, you may need USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.
MIKROSDK
The Ambient 4 Click Board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant click board demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.
Ambient 4 Click Board
Frequently Asked Questions
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