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Electronic Mini-Kits by Velleman

Electronic mini kits are easy to assemble and provide fun as well as functionality when building is complete. Perfect projects for electronics students, scouts, and beginner level electronics hobbyists. Mini kits come with clear illustrated instructions. Simple hand tools like side cutters, safety glasses, and a small soldering iron are all that's needed for assembly. This is PAGE 2 of our mini kit list. See MINI-KITS PAGE 1 for more.

Click on any image for a larger view

IR Light Barrier electronic kit MK120

IR Light Barrier Electronic Kit MK120

Uses an IR emitter to project an invisible beam of infrared light to an IR detector. The light beam can be used to monitor a doorway, a pathway, an area, a conveyor, etc. for the arrival or presence of a person or object. A buzzer on the detector loudly announces an alert when a person or object has passed through the IR light beam.

  • audible (85db) and visible (LED) alert
  • range: 3.3ft. to 13ft. (1 to 4m)
  • on/off switch provided
  • power supply:
    • emitter: 9Vdc, 50ma max.
    • detector: 9Vdc, 20ma max.
    • 9V battery holder and power adapter jack included.
  • Dimensions:
    • emitter: 2.2" x 1.6" (5.5 x 4cm)
    • detector: 3.9" x 2" (10 x 5 cm)
  • not recommended for outdoor use

Quantity:  1 to 9 $8.95 10 or More $8.49

classic TV tennis game MK121 like video Pong

TV Ping Pong Game Electronic Kit MK121-NTSC

Play a classic TV game like Pong. This kit provides hours of fun. One player mode has 4 selectable difficulty levels. Two player mode: press RESTART. Press both move buttons to "smash" or to start serve. Only the server can score points. Operates on 3 AA 1.5V batteries (not included).

  • video and audio outputs included
  • adjustable brightness
  • auto power off to preserve batteries

Quantity:  1 to 9 $14.89 10 or More $13.79

Rolling LED clock electronic kit MK123

Rolling Clock Electronic Kit MK123

Skill Level 2 (~150 solder connections). Nicely animated rolling time and date display. Graphic display with 35 LED's. Select hours, minutes, month or day with SELECT and enter the values with SET. Time display in 12h-mode (24h-mode when setting clock). Fine tune the clock by turning CV1.

  • Power supply: 9-12V DC adapter or car battery.
  • Current consumption: 20ma max.
  • Backup battery: 9V block type 6LR61 / 6F22
  • Dimensions: 1.8" x 3.5" x 2.6"

Quantity:  1 to 9 $13.95 10 or More $12.99

Kitchen timer mini electronic kit MK128

Kitchen Timer Electronic Kit MK128

1 minute to 1 hour timing. Single button, straightforward operation. Clear 16-led readout. Audible and visible alarm with discrete pre-alarm. Auto power-off. Attractive designer enclosure.

  • µcontroller technology
  • settings:
    • 1-10': one minute steps
    • 10-30': five minute steps
    • 30-60': 15 minute steps
  • basic accuracy: better than 5%
  • power supply: 3 AAA 1.5V batteries (not included)
  • power consumption: 10mA typ.
  • dimensions: 3.1" x 3.0" x 1.3"
    Kitchen Timer Manual.pdf (295kB)

Quantity:  1 to 9 $16.29 10 or More $14.79

LED traffic light kit MK131

Traffic Light Electronic Kit MK131

Miniature traffic light as used at four-way intersections. Realistic operation with adjustable delay. 12 LED's. Great for model railroads, slot car tracks, exhibitions, or just as a toy.

  • low power consumption: 15mA
  • power supply: 9V battery (not included)
  • ON/OFF switch
  • dimensions: 2 x 1.4 x 4.5"

Quantity:  1 to 9 $8.29 10 or More $7.69

Cable polarity checker Mk132

Cable Polarity Checker Electronic Kit MK132

Check cables for continuity and identify individual wires. Ideal for speaker cable polarity checking. LED indication for open circuit, shorts and correct or wrong polarity. Pushbutton operation with auto power off.

  • low power consumption: 10mA max.
  • power supply: 9V battery (not included)
  • dimensions:
    • main board: 2.2 x 1.6 x 1.3"
    • remote board: 1.6" x 0.3"

Quantity:  1 to 9 6.19 10 or More $5.79

Train sound generator MK134

Steam Engine Sound Generator Electronic Kit MK134

Simulates the sound of a vintage steam engine with a train whistle. Adjustable steam engine speed and volume. Great for model railroads, steam whistle sounds at the push of a button.

  • power supply: 9V battery (not included)
  • comes with 8 ohm/0.5W miniature speaker
  • dimensions: 3.9" x 3.3"
  • ideal for model train railroad hobbyists

Quantity:  1 to 9 $12.95 10 or More $11.89

Decision Maker electronic kit MK135

Decision Maker Electronic Kit MK135

Helps make difficult decisions. Ideal for the indecisive. Push the button to start the flashing of Yes/No LED's. Flashing speed gradually slows and finally only one LED remains lit, indicating the decision reached.

  • low power consumption 1µA idle / 8ma in use
  • auto power off
  • power supply: 9V battery (not included)
  • dimensions: 2.2" x 1.2" x 1.4"

Quantity:  1 to 9 $6.29 10 or More $5.89

Karaoke electronic kit MK140

Karaoke Electronic Kit MK140

Skill Level 2 (~120 solder connections). Sing along with your favorite music. Build this kit and hook-up this unit between your CD-player, MP3-player, or any other line level source and your amplifier. RCA (cinch) input and output sockets. With ¼" microphone jack, fits most microphones. Adjustable microphone level. "Vocal reduction" - switch reduces original vocals on most stereo recordings. On/off switch and LED power indication.

  • Power supply: 9V battery (not included)
  • Low current consumption: 16ma typ.
  • Dimensions:  3.9" x 3.3" x 1.0"

Quantity:  1 to 9 $13.29 10 or More $12.09

LED strobe light MK147

LED Strobe Light Electronic Kit MK147

Two super bright white LED's provide a continuous and adjustable powerful flash effect. Great for parties, attention grabber, or viewing moving parts, etc. Adjustable between 1 to 60 flashes per second.

  • power supply: 9V battery (not included)
  • power consumption: 40ma max
  • dimensions: 2.2" x 1.3" x 1.6"

Quantity:  1 to 9 $4.89 10 or More $4.55

Electronic shaking dice MK150

Shaking Dice Electronic Kit MK150

Skill Level 1 (~56 solder connections). No push buttons required, just give it a shake. Rolls out slowly and flashes last combination. Microprocessor controlled. Auto power off.

  • Power supply: 3V battery (CR2025 or CR2032) (not included)
  • Dimensions:  1.4" x 1.4" x 1.3"

Quantity:  1 to 9 $9.49 10 or More $8.89

Digital LED clock mini electronic kit MK151

Digital LED Clock Electronic Kit MK151

Clock with red 7-segment displays in an attractive enclosure, automatic time base selection (internal or net-frequency controlled 50/60Hz) Internal time base with fine-tuning adjustment, select 12h- or 24h-mode for the time display, equipped with backup battery (3 x AA) in case of power failure, clock still displays the time in case of power failure, power supply: 9V AC or DC adapter (not included), low current consumption: 16ma.

Quantity:  1 to 9 $24.49 10 or More $22.79

Spinning LED Wheel kit MK152

Spinning LED Wheel Electronic Kit MK152

Push the button to start the spinning action (circular sequence of lighted LED's). Rotation speed gradually decreases and stops with one LED remaining lit.

  • auto power off
  • low power consumption
  • 10 LED's
  • power supply: 9V battery (not included)
  • dimensions: Ø2.6" x 1.3"

Quantity:  1 to 9 $6.39 10 or More $5.95