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28 Aug 2010

This project is a 3 digit – digital voltmeter based on PIC16F676. PIC is reading the analog voltage using internal 10-bits ADC and display the value on 3-digits 7-segment displays. Check project details on the link below.

3 digits Digital volt meter – [Link]

28 Aug 2010

This project uses old fashioned LED displays to build a LED wristwatch that looks really cool. The heart of watch is PIC16F628A microcontroller and there is a separate oscillator to keep track of time. Check details on the link below.

LED Wristwatch - [Link]

28 Aug 2010

This project shows how to build an automatic home light that will switch ON every time you are coming or leaving home. This circuit is a module to Dual Channel IR Remote Control and is separated to two PCBs. It has a dual power supply, 8.4V for IR LEDs and 5V for everything else. Ambient light level measurement is done with CdS cell on A/D converter of PIC12F675 so that the lights don’t turn on during the daytime. It also has a Sharp IS471F obstacle detection sensor with two transmitting IR LEDs, plus an additional IR focus lens for longer range. There is also a third IR LED for RC5 code transmission for “remote controller” emulation by the PIC. Check code and schematics of this project on the link below.

Automatic coming/leaving home light – [Link]

27 Aug 2010

This project is able to convert low level DC signal from a pyranometer to DC current for long cable transmitting. The circuit was built with TLV2451, rail-to-rail input/output opamp made by TI. View hardware connection diagram and detailed schematic on the link below.

Pyranometer to Current Converter – [Link]


27 Aug 2010

This project shows how to build a SMS remote controller. This SMS controller is able to control the power (On-Off) of 4 devices and read the status of 8 switches. It uses a GSM module and easy to find components. The heart of this controller is a ATtiny2313 and a GM-47 GSM module. SMS command execution is protected under a programmable password.

SMS remote controller V3.0 – [Link]

27 Aug 2010

This project is a LAN cable tester able to check any type of LAN cables (straight or cross). Using this tool you are able to check for possible faults on LAN cables. Just connect the cable and watch the led glow one by one. If there is a faulty cable then the corresponding led won’t light. Check schematic on the link below.

LAN cable tester - [Link]

27 Aug 2010

Austriamicrosystems has announced the AS1119 which is a compact dot matrix LED driver capable of driving 144 single leds via I²C compatible interface. For more information about this great part follow the link below.

144-channel dot matrix LED driver – [Link]

27 Aug 2010

This project shows how to build a Experimental laser cutter based on low power diode. This laser can successfully make cuts using 1W laser cutter with a Z-axis control. Z-axis control allows the laser diode itself to move up and down like a saw. That motion moves the beam’s focus and makes cut more effective.

Experimental laser cutter with low-power diode - [Link]

26 Aug 2010

This project shows how to build a picture frame based on a PIC microcontroller. It consists of a PIC 24HJ256GP206 processor, a HX8347 touchscreen display and a SD card. Source code is available.

PIC based picture frame - [Link]

26 Aug 2010

This circuit is a MOSFET Audio Amplifier rated at 25 Watt. It is high quality and simple design. There is also a kit available on the link below.

25 Watt MosFet Audio Amplifier - [Link]



 
 
 

 

 

 

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