Library Description

Library provides generic functions for working with the click board.

Key functions :
 

• void hztov2_enPin(uint8_t pinState) - Function for enabling the click board.
• void hztov2_adcInit() - Prepare the ADC for voltage readings.
• float hztov2_adcRead() - Read the voltages and return the return the float voltage value.

Example description

The application is composed of three sections:

• System Initialization - Initializes GPIO and UART structures.
• Application Initialization - Power on the click board and initializeS the ADC.
• Application Task - Voltage reading is done from the analog pin and the conversion result is converted and output via the UART output.

void applicationTask()
{
 float voltage;
 char txt[20];

 voltage = hztov2_adcRead();
 if(voltage<0.99)
 {
 voltage = voltage * 1000.0;
 FloatToStr(voltage,txt);
 txt[5] = 'm';
 txt[6] = 'V';
 txt[7] = 0;
 }
 else
 {
 FloatToStr(voltage,txt);
 txt[5] = ' ';
 txt[6] = 'V';
 txt[7] = 0;
 }

 mikrobus_logWrite(txt,_LOG_LINE);
 Delay_ms(100);
}

Other mikroE Libraries used in the example:

• UART Library
• Conversions Library
• C_String Library
• ADC Library

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.