Library Description

The library contains functions for the complete communication of the MCU with click. The user can use functions to read the ADC values and voltage on the channel. The library also offers functions for writting data into the register and reading data from the register, as well as the configuration of the device for successful measurement.

Key functions:

• float adc8_getVoltage(uint8_t channel) - Read Voltage in mV
• uint16_t adc8_getADCValue(uint8_t channel) - Get ADC value reads from the channel
• void adc8_deviceConfig(uint16_t cfg) - Device configuration for measurement

Examples description

The application is composed of the three sections :

• System Initialization - Initializes I2C module and sets INT pin as INPUT
• Application Initialization - Initialization driver init and configuration device for measurement.
• Application Task - Reads voltage from each channel one by one and the voltage difference between specified channels

void applicationTask()
{
    // Single channel
    vSingle_CH0 = adc8_getVoltage(_ADC8_SINGLE_CHANNEL_0);
    vSingle_CH1 = adc8_getVoltage(_ADC8_SINGLE_CHANNEL_1);
    vSingle_CH2 = adc8_getVoltage(_ADC8_SINGLE_CHANNEL_2);
    vSingle_CH3 = adc8_getVoltage(_ADC8_SINGLE_CHANNEL_3);
    
    mikrobus_logWrite("______________________________________________", _LOG_LINE);
    mikrobus_logWrite(" Channel |  CH 0  |  CH 1  |  CH 2  |  CH 3  |", _LOG_LINE);
    mikrobus_logWrite(" Single  |", _LOG_TEXT);
    
    IntToStr(vSingle_CH0, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_TEXT);

    IntToStr(vSingle_CH1, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_TEXT);
    
    IntToStr(vSingle_CH2, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_TEXT);
    
    IntToStr(vSingle_CH3, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_LINE);
    
    // Diff channel
    vDiff_CH01 = adc8_getVoltage(_ADC8_DIFF_CHANNEL_0_1);
    vDiff_CH03 = adc8_getVoltage(_ADC8_DIFF_CHANNEL_0_3);
    vDiff_CH13 = adc8_getVoltage(_ADC8_DIFF_CHANNEL_1_3);
    vDiff_CH23 = adc8_getVoltage(_ADC8_DIFF_CHANNEL_2_3);
    
    mikrobus_logWrite("______________________________________________", _LOG_LINE);
    mikrobus_logWrite(" Channel | CH 0-1 | CH 0-3 | CH 1-3 | CH 2-3 |", _LOG_LINE);
    mikrobus_logWrite("  Diff   |", _LOG_TEXT);

    IntToStr(vDiff_CH01, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_TEXT);

    IntToStr(vDiff_CH03, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_TEXT);

    IntToStr(vDiff_CH13, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_TEXT);

    IntToStr(vDiff_CH23, demoText);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite("  |", _LOG_LINE);
    
    mikrobus_logWrite("|--------------------------------------------|", _LOG_LINE);
    Delay_1sec();
}

Other mikroE Libraries used in the example:

• I2C
• Conversions

Additional notes and informations

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.