Educational Kits

LEDs move to the rhythm of the music
surprise your friends in the disco
incorporated microphone
adjustable sensitivity

Specifications

• power supply: 3V type CR2032 battery (not incl.)
• on/off switch
• 5 LEDs
• designer enclosure
• dimensions: 87 x 50 x 25mm

two super bright white LEDs
powerful flash effect
great for parties, scale models, as an attention grabber, to observe moving parts, etc...
slow/fast selector and speed adjust trimmer
speed adjustable between approx. 1 and 60 flashes/second
on/off switch

Specifications

• power supply: 9V battery (not incl.)
• power consumption: 40mA max.
• dimensions: 55 x 32 x 40mm (2.2" x 1.3" x 1.6")

no push buttons required, just give it a shake
slowly rolls to a stop and flashes the last combination
microprocessor-controlled
auto power-off

Specifications

• power supply: 3V-battery (not incl.)
• dimensions: 36 x 36 x 32mm (1.4" x 1.4" x 1.3")

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

Specifications

• power supply: 9V AC/DC
• dimensions: 92 x 45 x 101mm (3.6" x 1.8" x 4.0")

microprocessor technology
functions include: flashlight, emergency flasher, SOS morse code flasher, SOS message wand and lighting distance meter
applications: camping, biking, hiking, boating, in the car, etc...
attractive enclosure with belt clip
low power consumption

Specifications

• power supply: 2 x 1.5V AAA batteries (not incl.)
• dimensions: 160 x 26 x 24mm (6.3" x 1.0" x 0.9")

amaze your friends: wave the wand to make the message appear
the message seems to float on the air...
lots of built-in messages + enter your own 7-character message
applications: novelty gadget, in emergencies, at concerts or TV-shows, to welcome people, etc…
excellent visibility due to high intensity red LEDs
low power consumption
auto power-off

Specifications

• power supply: 2 x AAA batteries (not incl.)
• dimensions: 160 x 26 x 24mm (6.4" x 1.0" x 0.9")

miniature message board with a single-line 16-character backlit LCD display
124-character EEPROM message memory
message scrolls with adjustable speed
built-in message editor
built-in RS232 interface for easy message uploading and displaying
free interfacing software available from www.velleman.be
applications: at exhibitions, for advertising, to greet visitors at the front door, as a name tag, serially-controlled display in equipment, ...

Specifications

• power supply: 9VDC / 100mA
• dimensions: 115 x 43 x 75mm (4.5" x 1.7" x 3.0")

Attractive bug-shaped miniature robot. The microbug is always hungry for light and heads towards it.

Features

two open-chassis subminiature motors
adjustable light sensitivity suits almost any light intensity and makes it possible to control its 'bug-like' behaviour
adjustable speed
choice of two different walks
LED 'eyes' indicate driving direction
stops in total darkness

Specifications

• power supply: 2 x 1.5V AAA batteries (not incl.)
• dimensions: 130 x 90 x 50mm (5.2" x 3.5" x 2.0")
  

processor-controlled LED star creating multiple dazzling effects
extra LEDs included, allowing different colour combinations: make your own mix of red and yellow LED's or make the star fully red or yellow
on-board effect selection push button
24 effects
3 static
15 blinking
6 animations with fading
"All effects" sequencing is possible (standard setting)

Specifications

• 60 LEDs on board
• power supply: 9 to 12Vdc adapter or battery (not incl.)
• current consumption: 20mA (static mode 9V battery)
• dimensions: 105x110x35mm

10 LED scale, up to 2000Wrms power measurements. Does not need a special power supply, because it is supplied directly from the speaker output. Ideal for car audio systems and PA systems. Also usable for bridged amplifiers. The unit can be used both horizontal and vertical. The kit comes with a front panel and four attractive front stickers, for the different scales.

Specifications

• four different scales:
  • at 4 ohm load in low power mode: 0.3 to 400Wrms
  • at 4 ohm load in high power mode: 10 to 2000Wrms
  • at 8 ohm load in low power mode: 0.15 to 200Wrms
  • at 8 ohm load in high power mode: 5 to 1000Wrms
• minimum input sensitivity: 1.1Vrms (low power mode)
• maximum input voltage: 130Vpeak (high power mode)
• current consumption: 25mA at full scale
• luminous intensity: 8 to 20mcd / LED
• dimensions: 120 x 40 x 28mm (4.7" x 1.6" x 1.1")
  

Regulated 1.5/3/4.5/6/7.5/9/12V dc Power Supply 300mA
A regulated, mains powered DC power supply with a flush output voltage selector switch to prevent accidental switching of the output voltage or make tampering difficult. The power adaptor is supplied with 2.5mm, 3.5mm Jack and 2.1mm, 2.5mm, 1.35mm, 0.75mm DC power plugs. Ideal for portable audio/visual equipment and electronic games. Supplied with voltage adjustment tool.

• Multiple voltages and reverse polarity option
• Regulated output
• Short circuit protection
• Automatic thermal cut-off and overload cut-off
• 300mA maximum load
• 2% stability
• LED ON indicator

A range of lithium manganese 3v coin cells.

CR2032 - 3v, CR2025 - 3v.

• Non-rechargeable
• Operating temperature -20°C to +60°C
• Used in miniature electronic equipment, calculators and watches
• PCB versions are ideally suited to memory backup applications
   

Miniature 12V alkaline battery.

Can be used in miniature instruments, lighters and remote control systems
Dimensions 28.5 x 10.0mm diameter
Equivalent to GP23A, V23GA.