In the simple tutorial we are going to blink few simple led with PIC18F microcontroller, using an external 20MHz crystal oscillator and the ‘__Delay ()’ function of XC8 Compiler. Most of the previous tutorials here dealt with internal oscillator of pic18F4550 where mostly the delays were generated with simple for loops. However those who wish […]
Blink LED with XC8 compiler using external Oscillator Read More »
Description The PIC 12F629 and 12F675 come equipped with an internal 4MHz oscillator, eliminating the need for an external crystal or RC network. This feature not only frees up one or two pins for I/O purposes but also facilitates integration into designs with minimal component counts. The internal oscillator needs to be calibrated and this
Internal Oscillator Recalibration Utility for PIC12F629 Read More »
This device is a simple access control system which uses RFID cards. It is designed with PIC12F1822 microcontroller running on internal oscillator at 16MHz. It generates 125 KHz carrier frequency and decodes the respond data stream – format H10301- FSK modulation 26 bits only. These cards (made by HID and other companies) are widely used in US.
RFID Reader – Access Control System Read More »
The microcontroller PIC16F887 has a build in USART (Universal Synchronous/Asynchronous Receiver/Transmitter) module. This module can be used as UASAT or UART. This small post shows an example for the usage of the UART protocol with PIC16F887 microcontroller. Hardware Required: PIC16F887 microcontroller MAX232 — datasheet 4 x 10uF polarized capacitor Female COM port Breadboard 5V
UART Example for PIC16F887 microcontroller using CCS PIC C compiler Read More »
This topic shows how to drive 5V unipolar stepper motor in 3 modes one-phase, two-phase and half step. The microcontroller used in this project is Microchip PIC12F1822 and the motor drive circuit is ULN2003. Usually the unipolar stepper motor has 5 wires one for motor supply and the other for coils. This motor has 4
Unipolar Stepper Motor Control Example with PIC12F1822 Microcontroller Read More »
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