Experiments with PIC16F628A

With mikroC built-in library, use of ADC on PIC microcontrollers has become more simple. PIC16F628A doesn't have in-built ADC in it, so I am going to demonstrate this with my PIC12F683 development board. The analog input will be given through a potentiometer, and the 10-bit digital output will be displayed on a hyperterminal window on PC.

I have recently made a new PIC development board for PIC12F683. It is an 8-pin microcontroller with a lot of good features including 10-bit ADC and PWM. The development board has following features: 1. A Regulated +5V power supply. 2. 3 Red LED outputs which can be connected to any GPIO pins using jumper wires. 3. An ON/OFF power supply switch. 4. A Green LED as a power ON indicator. 5. An 8-pin IC socket for PIC12F683 microcontroller. 6. Two potentiometers: one for providing Vref, and other for simulating analog input to ADC. 7. An ICSP header connector. 8. Two tactile switches for input operation. 9. A TTL to RS232 level shifter using a transistor circuit. 10. A piezo buzzer. 11. A DC motor with driving circuit. 12. Access to individual pins of PIC12F683 through female header pins.