Leaving home light using PIC12F675 Microcontroller

Those days when I come home at night and strait into the darkness are finally over. This is a very practical device and I built it so that it is a module to my Dual Channel IR Remote Control. Because of that I ended up with a definite overkill of what is supposed to be a simple switch with a timer when I open/close my door. Anyway, it is modular+wireless and that's what I like. You can download the project ...

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IR(infrared) Remote Control Relay Board with PIC 12F675 Microcontroller

Introduction  This little project will demonstrate how you can use your old NEC IR protocol based TV,DVD or VCR remote control to control you home appliances like fan bulb or virtually anything. Consumer IR protocols There are a number of consumer Infrared protocols out there and they have been used for every single purpose possible i guess, like PDA laptops and other consumer appliances. RC-5 & RC-6 by ...

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How to adapt a NES clone controller to bluetooth using PIC12F675

How to adapt a NES clone controller to bluetooth I bought a Wireless Bluetooth RS232 TTL Transceiver Module from DX (SKU 80711) and wonder what i can do with it. So, I'm realy nostalgic and decided to build a NES clone crontoller to bluetooth adapter, because, by this way I could play again that amazing games that we all remenber. A important thing I need to highlight is that in my city is so dificult to fi ...

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A Programmable Optical Slave Flash Trigger for Digital Cameras with Processor PIC 12F675

The synchronizer ensures a contact-free, optical synchronization of external photographic flashguns. The triggering of the external flash is derived from embedded flashes of a camera. It can be used for both digital and "analogous" cameras or for a remote synchronization of the actual flash units. Its use is optimal especially with digital cameras (DC), where extraordinary adaptability for different systems ...

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PIC12F675 Tutorial 3 : PIC Serial Port

The 12F675 does not have a built in USART that you can use for a PIC serial port so you have to use a software USART which you can download from this page. Adding a pic serial port connection to the circuit gives you scope for much more interesting projects as you can collect data from the ADC (inputs) or comparator or external infrared receiver module etc. and transmit it to a PC. This tutorial covers crea ...

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PIC12F675 Microcontroller Based Security Alarm Circuit

Crime in general is still on the rise, and having a security alarm installed is no longer a perquisite of the wealthy! Here is a simple and compact security alarm system to protect your home/shop and valuables. The circuit is built around a tiny microcontroller chip PIC12F675. Besides, a ready-made Passive Infrared (PIR) module is integrated with the alarm system for reliable human-motion detection. The bui ...

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PIC12F675 Comparator Code and Proteus Simulation

This post provides the comparator code for PIC12F675 microcontroller. As we know, PIC12F675 microcontroller has one built in op-amp, which can be used as comparator. This code is written in C language using MPLAB with HI-TECH C compiler. You can download this code from the 'Downloads' section at the bottom of this page. It is assumed that you know how to blink an LED with PIC12F675 microcontroller. If you d ...

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PIC12F675 Tutorial 5 : A Temperature data logger using PIC EEPROM

This PIC microcontroller EEPROM project saves the temperature from an LM35DZ IC to the PIC's internal long term data storage area.  The project follows on from the last project using the virtually the same hardware. It stores temperature readings internally at regular intervals until full and after this it turns on the LED. The LED is really just for showing that something is happening and in a real data lo ...

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PIC12F675 Tutorial 4 : Making an LM35 temperature recorder

This page shows you how you can make an LM35 an temperature recorder by using the 12F675 PIC microcontroller as the controller and data store. It generates serial output so that you can view the results on a PC and it also calculates the temperature reading in Fahrenheit sending both to the serial port at half second intervals. The project uses the code from the previous tutorials to report the temperature ...

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Audio CRO using PIC12F675 Microcontroller

This project is a miniature Audio CRO. For those not familiar with the abbreviation "CRO," it means "Cathode Ray Oscilloscope" and this is sometimes shortened to "SCOPE or O-Scope." A "CRO" is a piece of test equipment with a screen. It produces a visual indication of a waveform, via a probe, when the waveform is connected to the input terminal of the CRO. If you connect a microphone to the probe and whistl ...

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