I need help with this project, i don't know how to start
Sensor Design and Analog Digital Conversion.
Objective
Learn how to design sensors with embedded microcontrollers
Understand the operation of ADC
Understand the design of sensor circuitry
Description
You are required to design a light intensity sensor controlled by a PIC microcontroller. The parts given include a PIC16F684, a photoresistor,
a LED and assorted diodes and resistors.
You can use a breadboard or a wire-*‐wrapping prototype board (recommended for a rigid design). The ADC module in PIC16F684 will be used to convert analog signal to digital values. Your PIC based light sensor
should be able to 1. Convert the light density information to a variable voltage (0-*‐5V). 2. Obtain an analog input signal (sensory data) via an analog pin of the PIC (e.g. AN0) 3. Use the internal ADC of PIC to convert analog signals to digital values 4. Turn on the LED if the sensor is encapsulated in a dark box or put in a dark environment. 5. Turn off the LED if the sensor is placed in a well lighted environment. 6. (Optionally)
display the ADC result to a LCD module
Sensor Design and Analog Digital Conversion.
Objective
Learn how to design sensors with embedded microcontrollers
Understand the operation of ADC
Understand the design of sensor circuitry
Description
You are required to design a light intensity sensor controlled by a PIC microcontroller. The parts given include a PIC16F684, a photoresistor,
a LED and assorted diodes and resistors.
You can use a breadboard or a wire-*‐wrapping prototype board (recommended for a rigid design). The ADC module in PIC16F684 will be used to convert analog signal to digital values. Your PIC based light sensor
should be able to 1. Convert the light density information to a variable voltage (0-*‐5V). 2. Obtain an analog input signal (sensory data) via an analog pin of the PIC (e.g. AN0) 3. Use the internal ADC of PIC to convert analog signals to digital values 4. Turn on the LED if the sensor is encapsulated in a dark box or put in a dark environment. 5. Turn off the LED if the sensor is placed in a well lighted environment. 6. (Optionally)
display the ADC result to a LCD module