Sensor reading through ADC (temperature, light) in Embedded C - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start the ADC conversion.

Embedded C

ADC_StartConversion([1]);

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AADC0

BADC2

CADC3

DADC1

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong ADC module like ADC1 or ADC2.

Forgetting to start the ADC conversion.

The ADC0 is the correct ADC module to start conversion for this sensor setup.

2fill in blank

medium

Complete the code to read the ADC value from the temperature sensor channel.

Embedded C

uint16_t tempValue = ADC_ReadChannel([1]);

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A2

B3

C1

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Reading from the wrong ADC channel.

Using an invalid channel number.

Channel 0 is connected to the temperature sensor, so reading from channel 0 gives the correct value.

3fill in blank

hard

Fix the error in the code to convert ADC value to temperature in Celsius.

Embedded C

float temperatureC = ([1] * 330.0) / 1023.0;

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AADC_Value

BtempValue

Cadc_reading

DsensorVal

Attempts:

3 left

💡 Hint

Common Mistakes

Using undefined variables like ADC_Value or adc_reading.

Forgetting to use the correct variable for conversion.

The variable tempValue holds the ADC reading from the temperature sensor and must be used for conversion.

4fill in blank

hard

Fill both blanks to read light sensor value and convert it to voltage.

Embedded C

uint16_t lightRaw = ADC_ReadChannel([1]);
float lightVoltage = (lightRaw * [2]) / 1023.0;

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A1

B3.3

C2

D5.0

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong ADC channel for light sensor.

Using incorrect reference voltage for conversion.

The light sensor is connected to ADC channel 1, and the reference voltage is 3.3V for conversion.

5fill in blank

hard

Fill all three blanks to create a dictionary mapping sensor names to their converted values.

Embedded C

float sensorValues[] = {temperatureC, lightVoltage};
const char* sensorNames[] = {"Temp", "Light"};
for(int [1] = 0; [1] < 2; [1]++) {
    printf("%s: %.2f\n", [2][[1]], [3][[1]]);
}

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Ai

BsensorNames

CsensorValues

Dj

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong loop variable names.

Mixing up sensorNames and sensorValues arrays.

Variable i is the loop counter, sensorNames holds the names, and sensorValues holds the values to print.