Circuit Lake

The purpose of this project is to build a shaded lamp and to switch this lamp on and off in normal way. Then you could by exception dimming the lamp more or less with your TV remote control. To processing the RC5 code The project utilized by Microcontroller PIC 12F629.

With the ‘0′ button in TV mode you can dim the lamp, turn more and less bright. The remote control should send more then one RC5-signal per button-press seeing that the first one is ignored, this does imply that when the remote button is pressed a short time, there nothing happens. With the P+ and P- button from a system at choice you can adjust the maximum and minimum dim-levels and with the ‘1′ button the start-up brightness.
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This is a watt meter project based on microcontroller PIC 16F870. The project is suitable for you who like amateur radio.

This watt meter project is very similar to my last wattmeter project. The main reason I made a new project is becasue I needed a unit which could handle higher power than 1W. I found a 50 ohm dummy load which could take 50W of power. Of course I could use attenuates for my 1W meter, but I prefered to build a new unit. The new thing with this project is that it will only display the power in Watt on the LCD display. This means that I will not need so many EEPROM to store display data (more about this later).

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This is a small ajustable clock based on microcontroller PIC16F84A microchip.The electronic project here is very simple because the hardware only uses 74hct238 demultiplexer, 4×7 segments, and some resistors. The software is programmed through a device connected to serial port with icprog and made/debuged with MPlab. For PIC Programmer you can use JDM PIC16F84A programmer.

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Parallel interfacing LCD with MCU at least need 6 I/O pins (4 bit mode) and maximun can up to 11 I/O pins (8 bit mode). The I/O pin can be cut down to 3 pin by serial iterfacing using shift register. They were few shift register can be used such as 74HC164, 74HC595, CD4094 and any compatible 8 bit shift register. Before you attempt to do serial interfacing, it is good pratice to familiar with parallel interfacing. You can find many reference from internet.Following diagram show the serial interfacing Hitachi compatible 2 X 16 LCD modules with Pic16F84 or Pic16F628 MCU.

Download documentation and source code for serial interfacing LCD with PIC here (zip file)

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