Project submission deadline: 25 April 2008

details

Contest ended

 

WINNERS

	Project Title / Short description	Author	WINS
1	ATmega48/88/168 Development Board	Miroslav Batek	1st Prize
2	AquaCont - Aquarium Control	Pasquale D'Orsi	2st Prize
3	Open GPS Tracker	mike [AT] opengpstracker.org	3st Prize
4	USB Sound Card with PCM2702	Miroslav Batek	4st Prize
5	IR Digital Thermostat for FAN	Zeeshan Raja	5st Prize
6	Church bell Controller	Antonis Pontikakis	6st Prize
7	MAX6953 Development board	Kedros Ioannis	7st Prize
8	Ethernet based Security System	Ahmad Masri	8st Prize
9	230V Blinking LED	Aleš Vinko	will receive a honor gift
10	Two way Simple Very Small Telephone Exchange	Achira	will receive a honor gift
11	The experimenter's pot - Digital Potentiometer	Joseph Yumul	will receive a honor gift

Winners please contact webmaster@electronics-lab.com about your shipping address to receive your gifts!

 

 

1st Prize

AVR Ethernet I/O Board
Remote control and sensing via ethernet

The Internet has revolutionized the way we communicate. From sending e-mails that arrive at the recipient's inbox almost immediately, to the plethora of information instantly available on the web, the world has become a much smaller place. That same network of connectivity can also be used to provide real-time remote control and monitoring from within any two Internet accessible points in the world. The Ethernet I/O board allows networking hobbyists to remotely control 4 relay activated devices and monitor the status of 4 optocoupled inputs via the Internet using a Web Browser or the Custom EIO Control Panel Software.

Features:

- 4 Normally Open Relay contacts.
- 4 Optoisolated inputs accept active signal level of 3 to 15VDC.
- LED indicators for Power, Input/ Output status and Network status.
- Very low power consumption, can be left on 24/7.
- Second set of contacts (N.O or N.C.) available from each relay at 3 pcb pads.
- Data protocol available for those wishing to write their own custom client applications.

These additional features are available when using the custom EIO Control Panel software:
- ON/OFF or momentary operation of the relays (latter good for "reset" functions).
- User defined audio WAV file alarm can be enabled when Input #1 is activated.
- User defined labels for Relays and Opto-Inputs.
- Selectable refresh update polling.

Applications include: (remotely)

Controlling devices in your home.
Switching audio and video signals.
Keying a transmitter.
Resetting a "hung" computer.
Arming/ Monitoring an alarm system.
Enabling/disabling and monitoring a radio link or repeater site.

More information here

 

 

2st Prize

ELOG1 Environmental Data logger
multifunction sensor data logger

The ELOG1 environmental data logger is a highly capable yet relatively inexpensive solution for many types of data logging applications. The ELOG1 provides more measurement inputs than other data loggers of comparable price. While the ELOG1 is highly capable, it is best suited for indoor applications. The case is not water-tight, as can be seen in the rear view picture below. The logger should be protected from precipitation when used outdoors.

The components of ELOG1 are rated for at least 0 to 70 °C (32 to 158 °F) unless noted otherwise.

• Dimensions:

  • Case (mm): 129.03 wide x 133.35 deep x 38.1 high

  • Case (inches): 5.08 wide x 5.25 deep x 1.5 high

• Weight:

  • Assembled with BP and RH options but without batteries: 255 grams (9 oz.)

• Power requirement:

  • Internal - two AA batteries, alkaline or NiCd. New alkaline batteries will power the ELOG1 for over a month.

  • External - any DC source from +3.5 to +6 volts at 50 mA, center positive coaxial power plug, 5.5 mm O.D., 2.1 mm I.D.

• Indicator LED:

  • Off - normal operation.

  • On steady - memory full.

  • On flashing - low battery.

• Non-volatile memory:

  • Data is retained when power is lost and can be downloaded later.

  • 4K bytes of FLASH (program) memory.

  • 16K bytes of EEPROM (data) memory.

• Analog inputs (sampled at 10-bit resolution):

  • Temperature sensor - accuracy better than 2% of full scale.

  • Light sensor - relative light intensity.

  • Relative Humidity (RH) sensor option - range 20% to 90%, -20 to 60 °C, accuracy within ±2%.

  • Barometric Pressure (BP) sensor option - range 65 to 105 kPa (9.4 to 15.2 psi), accuracy within ±1.5%.
    Uses one external analog input.

  • External - two available, one may be used for BP. Hardware configurable gain/filter options.

• Digital (switch) inputs:

  • All three digital inputs are on the external input connector.

  • One input where rising edges are counted during each sample period.

  • Two inputs that are read at the end of each sample period.

More information here

 

3st Prize

ColdHeat Soldering Iron
battery powered soldering iron

 

The safe ColdHeat instant heating and cooling technology makes it perfect for even the most inexperienced hobbyist. Cordless operation lets you take your soldering iron to the project, not struggle to find an outlet or have to take the project to the tool. Solder over 700 joints on one set of 4 "AA" alkaline batteries

• Cordless / battery operated

• Heats instantly. Cools in seconds.

• Uses 4 replaceable alkaline AA batteries

• Over 700 joints per battery pack

• Very safe--tip hot only during active soldering

• Tip heat indicator (red light)

• Replaceable tip available ; other tip shapes available

More information here

 

4st Prize

Buffered ±2g Accelerometer
DE-ACCM2G

The DE-ACCM2G is an off the shelf 2 axis 2g accelerometer solution with analog outputs. It features integrated op amp buffers for direct connection to a microcontroller's analog inputs, or for driving heavier loads.

To maximise usability, it is designed to fit in the DIP-14 form factor, making the DE-ACCM2G suitable for breadboarding, perfboarding, and insertion into standard chip sockets. To keep things as simple as possible, there are only 4 pins - two for power, and two for the X and Y analog outputs.
 
Additional circuitry ensures that the product won't be damaged by reversed power connections, or voltages above the recommended ratings.

Product Specs

Model:	DE-ACCM2G
Performance:	Dual axis ±2g sensing 750mV/g sensitivity at 5V 500Hz bandwidth Accurately drives up to a 3kΩ load
Protective Features:	Reverse voltage protection 14v overvoltage protection Output short protection
Applications:	Motion, tilt and slope measurement Shock sensing Cute little tables for lego men
Datasheet:	DE-ACCM2G.doc (185kb) DE-ACCM2G.pdf (238kb) ADXL322.pdf (358kb)

More information here

 

5st Prize

Buffered ±2g Accelerometer
DE-ACCM2G

The DE-ACCM2G is an off the shelf 2 axis 2g accelerometer solution with analog outputs. It features integrated op amp buffers for direct connection to a microcontroller's analog inputs, or for driving heavier loads.

To maximise usability, it is designed to fit in the DIP-14 form factor, making the DE-ACCM2G suitable for breadboarding, perfboarding, and insertion into standard chip sockets. To keep things as simple as possible, there are only 4 pins - two for power, and two for the X and Y analog outputs.
 
Additional circuitry ensures that the product won't be damaged by reversed power connections, or voltages above the recommended ratings.

Product Specs

Model:	DE-ACCM2G
Performance:	Dual axis ±2g sensing 750mV/g sensitivity at 5V 500Hz bandwidth Accurately drives up to a 3kΩ load
Protective Features:	Reverse voltage protection 14v overvoltage protection Output short protection
Applications:	Motion, tilt and slope measurement Shock sensing Cute little tables for lego men
Datasheet:	DE-ACCM2G.doc (185kb) DE-ACCM2G.pdf (238kb) ADXL322.pdf (358kb)

More information here

 

6st Prize

Panel thermometer
Temperature Indicator TPM-140

 

Temperature Panel Meter Model:TPM-10

* LCD display
* easy panel mountaining,
* low power consumption for longer life

Technical parameter:

Measuring range:-50 ~ +70 C
Distinguish:0.1 C
Accuracy:+/- 1 C

Power Supply:DC1.5V (AG13) x 2
Product size:47.8 x28.5x14.3mm
Screen size:36 x16mm

 

7st Prize

Gas Sensor
NAP-2A

NAP-2A is a universal type of flammable gases and can be used for gas detectors as well as for gas densitometers. The following are the ratings and output characteristics of this sensor. It is recommended to refer to the individual users manual for further information.

Target gases and concentration

Gases Detection range

Methane CH4 0.05-5%(0.05-2%)
Propane C3H8 0.03-2.2%(0.03-1%)
Iso-butane Iso-C4H10 0.03-1.8%(0.03-0.8%)
Hydrogen H2 0.05-4%(0.05-1.5%)
Ethanol C2H5OH 0.05-3.2%(0.05-1.5%)
Hydrocarbons CnH2n+2 1-100%LEL(1-50%LEL)

More information here

 

8st Prize

Card activated relay
card access for security system

 

Details

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