Diagram SOlution

Friday, September 26, 2014

Simple Universal PIC Programmer

This simple programmer will accept any device thats supported by software (eg, IC-Prog 1.05 by Bonny Gijzen at www.ic-prog.com). The circuit is based in part on the ISP header described in the SILICON CHIP "PIC Testbed" project but also features an external programming voltage supply for laptops and for other situations where the voltage present on the RS232 port is insufficient. This is done using 3-terminal regulators REG1 & REG2. The PIC to be programmed can be mounted on a protoboard. This makes complex socket wiring to support multiple devices unnecessary. 16F84A, 12C509, 16C765 and other devices have all been used successfully with this device.

Circuit diagram:

Simple Universal PIC Programmer Circuit Diagram

Digital Alarm Clock Using PIC

This project describes a digital clock with alarm function. It uses a PIC16F877 microcontroller to generate an accurate 1 sec delay with Timer0 using Roman’s zero error method. The time is displayed in large size font on a 4×20 character LCD that uses HD44780 display driver. You can synchronize the time with your computer time through a serial port.

Digital Alarm Clock Using PIC Circuit Diagram

The required power is provided through a 9 V wall adapter which is used to obtain a regulated +5 V power supply using a LM7805 IC. The microcontroller runs with a 20 MHz external clock. The backlight of LCD is driven by a PWM output from the microcontroller so that the back light intensity can be varied. The full software written in JAL is available to download. Source Code.

Universal PIC Programmer Circuit

The series of Universal PIC Programmer can be used with software IC-Prog 1:05. Universal PIC programmer circuit is very simple with BC337 transistor 1 fruit, 2 pieces of IC regulators 7805 and 7808 as well as supporting passive components. Universal PIC Programmer series can be supplied with 2 pieces of 9V batteries.

For communication with computer circuit Universal PIC Programmer uses a serial RS232 port of computer. Then for the PIC to be programmed provided 5 lanes for the PIC that is DATA, Clock, Vpp, Vcc and Ground. For more details, can be directly seen in the figure below.

Universal PIC Programmer Circuit diaggram

Universal PIC programmer circuit diagram

The series of Universal PIC Programmer can be used to program the PIC family of 16F84A series, 12C509, 16C765 and the other. Hopefully this series of Universal PIC Programmer can help for friends who want to make PIC programmer.

Diagram SOlution

Friday, September 26, 2014

Simple Universal PIC Programmer

Thursday, February 6, 2014

Digital Alarm Clock Using PIC

Thursday, December 5, 2013

Universal PIC Programmer Circuit