BUE Engineering Electronics & Digital Circuits Kit
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Prices updated: 13 Oct 2026
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About this product
A learning kit for electronics and digital circuits, built around an 830-point MB102 solderless breadboard. It includes resistors from 100 ohm to 560 kohm, electrolytic capacitors, 1N4007 and 1N914 diodes, 5 mm LEDs in five colours, SPDT 5V and 9V relays, active buzzers and 9V battery connectors, stored in a 13-inch plastic toolbox.
Specifications
- Breadboard
- MB102, 830 tie points, solderless
- Resistors
- 100 Ω to 560 kΩ, 1/4 W (560 kΩ 1/2 W)
- Electrolytic capacitors
- 1 µF 50V, 10 µF 16V, 22 µF 50V, 1000 µF 25V
- Diodes
- 1N4007 rectifier (1A, 1000V), 1N914 fast switching
- LEDs
- 5 mm red, green, blue, yellow, white
- Relays
- SPDT, 5VDC and 9VDC coil, 10A
- Buzzer
- 5V active buzzer
- Power
- 2 x 9V Panasonic batteries with connectors
Frequently asked questions
Which relay coil voltage should I use with an Arduino?
The 5VDC relay coil matches an Arduino 5V supply, so it can be driven with a transistor or relay module. The 9VDC coil needs a 9V supply on its coil and is not driven directly from an Arduino pin.
How do I connect electrolytic capacitors correctly?
Electrolytic capacitors are polarized. The longer leg is positive and the marked side is negative, so the negative leg must go to the lower-voltage or ground side of the circuit. Reversing them can damage the capacitor.
