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Example

Hz to V click

Rating:

5

Author: MIKROE

Last Updated: 2018-03-09

Package Version: 1.0.0.0

Example: 1.0.0.0

Category: Measurements

Downloaded: 5525 times

Not followed.

License: MIT license  

HZ to V click is a device that can convert input frequency of the signal with virtually any wave shape to a DC voltage output, with a level proportional to the input frequency.

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  • mikroSDK Library 2.0.0.0
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Example Blog

Hz to V click

Hz to V click

Native view of the Hz to V click board.

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Hz to V click

Hz to V click

Front and back view of the Hz to V click board.

View full image

Examples Description

The demo application shows how to control the Hz to V click using MCU's PWM module.
The demo application is composed of two sections:

  • Application Task - Alternates between different output voltages.
  • hz2v_setOutputVoltage - Sets the PWM frequency to the required value, changing the output voltage.
//Sets the output voltage in millivolts
void hz2v_setOutputVoltage(uint16_t voltage)
{
 pwmPeriod = PWM_TIM5_Init(voltage*2);
 PWM_TIM5_Set_Duty(pwmPeriod/2, _PWM_NON_INVERTED, _PWM_CHANNEL1);
 PWM_TIM5_Start(_PWM_CHANNEL1, &_GPIO_MODULE_TIM5_CH1_PA0);
}

void applicationTask()
{
 hz2v_setOutputVoltage(5000); //5 V output
 Delay_ms(3000);
 hz2v_setOutputVoltage(2500); //2.5 V output
 Delay_ms(3000);
 hz2v_setOutputVoltage(1000); //1 V output
 Delay_ms(3000);
 hz2v_setOutputVoltage(500); //0.5 V output
 Delay_ms(3000);
}


Other MikroElektronika Libraries used in the example:

  • PWM

Additional notes and information

Depending on the development board you are using, you may need USB UART clickUSB 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.

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