A photoresistor or light dependent resistor (LDR) is a resistance decreases with increasing incident light intensity. It can also be referred to as a photoconductor. In here, we going to do a simple connection of LDR and display the ADC and Voltage value on LCD.
Piezo buzzer, generally use as a sensor and actuator which are use to measure force, pressure , tools for positioning object and etc. As for this project, we are going to use it to generate a melody by applying PWM frequency to it.
Analog distance sensor which have a function that same as the Ultrasonic sensor which is use to measure range. But for this sensor, the output value are in centimeter(cm) and also the output are only given an analog value. To get the result, an mathematics formula are required to apply into our C-code for calculation.
There are many sensor to measure a range such as using Ultrasonic, Infrared and more. In here, we are going to experience how to measure a range using Maxbotic Maxsonar-EZ1 ultrasonic range finder which it will give the output value in inch.
In this part, we are going to discuss about how to write the Analog to Digital Converter code which has become the most popular question among the students. We are going to use PIC16F887 with have contain of 10-bits binary result and a potential-meter to adjust the voltage different and display it in the LCD display.
For this project, we will discover how to manage a digital input signal. As we know that digital signal is either HIGH (1) and LOW (0) only. But for different integrated circuit such as PIC MCU, we need to define at the beginning of the code that the port using are either input or output and also declaration for digital or analog signal send and received.
For project 2, we will show you how to interface the SK40C board will parallel 16×2 LCD display. The connection are simple and the coding are easy to learn. We are going to display the “Hello World” on the LCD display by just adding a library that has been done for you.
In project 1, you are about to experience how to program a LED chaser which can be increase the running speed by just a single button pushing. While releasing it, the running speed will slowly back to normal. In here, we are going to use total of 6 LEDs and will connected with a current limiting resistor before plug into the I/O port.