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Kitronik Light Activated Switch

Manufacturer: Kitronik

This light-activated kit is also available as a temperature-activated project kit. The output of this board can be used to control other electronic circuits, turning them on automatically when it goes light or dark.

The board has space for an LED with a current limit resistor (both available separately) which will light when the output turns on.

The Darlington pair transistor configuration allows an output current of up to half an amp to be controlled. Operating voltage 3V to 12V (lower voltages allow for better adjustment of the switching point).

Note: This kit requires soldering.

Features:

This Light Switch Kit detects the brightness of its surroundings using a Phototransistor.

The kit acts as an automated on/off switch (light dependable) for many devices.

Contents:

1 x 1MΩ Potentiometer.

2 x BC337 NPN Transistors.

1 x Phototransistor.

1 x 220Ω Resistor.

1 x Light Activated Switch PCB

Possible applications include:

Garden light that switches on automatically at night.

Drawer alarm, which sounds when a dark drawer is opened.

Line following robot (using 2 light-activated boards).

SKU: KI 2112

Availability: 35 in stock

€2.50

Qty:

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Products specifications

MICRO:BIT
Device Type	Cables, Switches & Motors

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Kitronik Protector Case for Microbit - V1 &V2

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This Kitronik MI:pro Protector Case for the BBC micro:bit has been designed to work with both the original Micro:bit V1and the new Micro:bit V2and continues in the traditions of our earlier cases. The cases are designed to keep the micro:bit safe, fully useable, and to offer the freedom of not being tethered to a computer.

If a battery holder is attached to the back it can also can be stood neatly on a desk and it also features large and easy to read labels for the A and B buttons. This case provides full access to the bottom pins on the BBC micro:bit so the Edge Connector Breakout Board for the BBC Micro:bit can be used. One of the key features of the micro:bit is its physical size and this case has been designed with that in mind. It's as compact as we could make it, whilst still offering protection for the micro:bit.

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Note: This case requires assembly, full instructions can be found in the resources section below.

Features:

Provides excellent protection to the BBC micro:bit whilst allowing access to the bottom pins.

Full access to the A and B buttons on the BBC micro:bit.

Attach a battery cage to the rear of the case with the supplied sticky fixer.

Full access to pins and connections including the micro USB connector.

Clear case material shows the on-board LEDs in perfect clarity.

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4 x M3 Cheese Head Nylon Machine Screw.

1 x Sticky Fixer Pad.

4 x M3 Nylon Full Nut.

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-- 1 x Back Mounting Plate.
-- 2 x Mid-layer Parts.
-- 1 x Mid-layer Plate.
-- 1 x Front Plate.

Dimensions:

Length: 65mm.

Width: 37mm.

Depth (without screws): 12mm.

Depth (with screws): 18.5mm.

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10 x 3mm Red LEDs.

10 x 5mm Red LEDs.

5 x 10mm Red LEDs.

10 x 3mm Green LEDs.

10 x 5mm Green LEDs.

5 x 10mm Green LEDs.

10 x 3mm Yellow LEDs.

10 x 5mm Yellow LEDs.

5 x 10mm Yellow LEDs.

10 x 5mm Panel Mount LED Clips.

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Includes hands and fixings.

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Accurate timekeeping.

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1 x Quartz clock mechanism.

1 x Second hand.

1 x Minute hand.

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The colour changing LED on this kit turns on when it goes dark and stays on for a period of time. This makes a good night light and because the LED is only on for a small amount of time the batteries last much longer than a light that is on all night.

There is an on board trimmer to set the light level at which the LED turns on and another trimmer to set how long the LED stays on for. The maximum duration is about 30 minutes. When set to 15 minutes and activated once a night the batteries will last two months.

Features:

Adjustable light level sensor.

Adjustable length of light time.

Contents:

2 x 10K Resistor.

2 x 1M Resistor.

1 x PCB trimmer 220K POT.

1 x PCB trimmer 10M POT.

1 x 47R Resistor.

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1 x Capacitor, Electrolytic, 16V, 470uF.

4 x 2N7000 N Chanel FET.

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1 x PP3 Battery Clip Lead (Heavy Duty).

1 x 3xAA Battery Cage with Clip.

1 x Timed Night Light Kit PCB.

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PCB Length: 53mm.

PCB Width: 41mm.

Requires:

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Soldering Iron.

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Wire Cutters.

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Kitronik Light Activated Switch

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