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Author: MIKROE
Last Updated: 2019-01-29
Package Version: 1.0.0.1
mikroSDK Library: 1.0.0.0
Category: Gas
Downloaded: 5584 times
Followed by: 2 users
License: MIT license
This example demonstrates usage of the LPG click board in mikroBUS form factor. LPG click is suitable for detecting LPG concentration - LPG checker. LCD shows PPM value of LPG concentration.
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Library Description
The library covers all the necessary functions to control LPG Click board. LPG click communicates with the target board via analog ( AN ) pin. This library contains drivers for read ADC value of MQ-5B sensor.
Key functions:
float lpg_voltageConversion( uint32_t adcValue, float vRef )
- Convert the voltage function.float lpg_getRatio( uint32_t adcValue, float vRef )
- Get the sensor ratio function.float lpg_getSensorResistance( uint32_t adcValue, float vRef )
- Get the sensor resistance.Examples description
The application is composed of the three sections :
void applicationTask() { valueADC = lgp_readADC(); Delay_100ms(); IntToStr( valueADC, logText ); mikrobus_logWrite( " ADC value: ", _LOG_TEXT ); mikrobus_logWrite( logText, _LOG_LINE ); mikrobus_logWrite( "-------------------", _LOG_LINE ); Delay_1sec(); }
Additional Functions :
void lgp_adcInit()
- Function ADC initialization.uint32_t lgp_readADC()
- Function read ADC value.Other mikroE Libraries used in the example:
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.