Kits (89 items)

VOX control with microphone, Board size L x W: 77 x 43 mm, Frequency range: 30 - 17000 Hz, Voltage supply: 12 VDC

Features - very Small, universal USB powered & controlled I/O board ! - add USB interface to existing equipment - 15 inputs / outputs, including analogue inputs / digital inputs/outputs and PWM out...

Features - microcontroller circuit, fit for incandescent lamps, mains halogen lamps and the new energy saver halogen lamps. - install the module in the (existing) lighting circuit, just add one or ...

wide timing range easy time setting LED animation during operation on-board START-STOP buttons non retriggerable power-on trigger is possible debounced buffered inputs avoid false triggering compac...

Simple low-cost thermostat / temperature controller for various applications. Features - use for frost protection - heating controller - automotive applications (fan control) - temperature regulate...

just add a suitable transformer (see table) - 9Vac: 109010C - 12Vac: 112012C - 24Vac: 212024C - great to power your projects and save on batteries - use as adjustable power supply for experiments -...

Features - big sound from a small unit - low distortion - input: stereo 3.5mm jack - volume adjust complete with attractive knob - slide on/off switch - blue indicator led

Chirps or glows as long as the sun shines. Features - realistic cricket chirp - slow fading green led simulates glow-worm Specifications - solar cell: 4.5V/ 35mA - optional rechargeable batteries: ...

Traditional LED VU-meters are boring! This star-shaped VU-meter will brighten up your party! - 60-LEDs sound star - responds to sound and music in a 'VU-meter'-fashion - built-in microphone - adjus...

cannot be blown out by the wind - safe for kids and pets - great at home, for parties, Xmas, Halloween, etc. choose between 3 different modes: - realistically flickering flame - steady flame - fade...

compact 2-button IR keychain remote - compatible with most Velleman IR receivers - 2 powerful IR LEDs for a range of up to 15m (indoors) - 16 channels (allow use of multiple transmitters in one roo...

10-LED spinning wheel - push the button to start spinning action - spinning speed gradually decreases - finally it stops and one LED remains lit - auto power-off - low power consumption

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

check your love life ! - each partner holds one end of the PCB, then they join hands, watch the meter go ... - great fun at parties, among friends, etc... - 10-LED readout plus audible 'love-level'...

two super bright red LEDs - very powerful flash effect - for emergencies, warning signs, as eye-catcher, 'alarm-active' - simulation, etc ... - 'Auto turn-on at dark' - mode with adjustable sensiti...

Features - 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 trim...

Features - miniature Xmas gadget - 6 LEDs flash alternately - tree can be operated pending (e.g. from the ceiling or Xmas tree) or can be worn as a badge (pin supplied) - great attention grabber - ...

General purpose low-cost thermostat with NTC temperature sensor. Output relay with LED indicator. - also available as completely mounted module VM137

The easy way to check your IR remote for proper operation. Simple operation : point the remote at the sensor and push an arbitrary button. Four flashing LEDs indicate remote operation. Specificatio...

Helps making difficult YES or NO decisions. Ideal for the indecisive. Simply push the button to start flashing of YES/NO LEDs. Flashing speed gradually decreases and finally one LED remains lit. - ...