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4 AA Battery Holder with Wire Leads

4 x AA Battery Holder with Wire Leads

9V Battery Hold with Wire Leads

9V Battery Holder with Wire Leads

3 Foot USB Cable Type A to USB Cable Type A

USB Cable Type A Male to USB Type A Male - 3 FT

USB 2.0 Cable 10 Foot Type A Male to Type B Male

USB 2.0 Cable Type A Male to Type B Male - 10 FT

Tumbnail: 62 oz-in NEMA 17 Stepping motors (also called stepper motor)

NEMA 17 Stepping Motor (62 oz-in 5mm single shaft)

$19.95 Out of Stock
Image of the Atmega324p



10K timmer potentiometer

10K Trimmer Potentiometer (Through Hole)

16x2 LCD (Liquid Crystal Display)

16x2 LCD (Liquid Crystal Display)

White prototyping breadboard with 30 tie strips and two power rails on each side.

White Prototyping Breadboard (2x30 columns of tie strips and 2x2 rows of power strips)


On Paper: Wall Adapters for Power

Wall Adapters have an input voltage generally between 110v or 220v. This voltage may read 115v, 120v, 230v or 240v. the output voltage will vary widely. This usually depends on the application of the wall adapter. If the wall adapter was used for another device, the wall adapter was designed and manufactured to power that device safely.

The output will be shown in DC or AC voltage and amperage. Voltage is the rating that the wall adapter will provide the circuit, and the amperage is the maximum value that the wall adapter allow. That is to say, if a device normally draws (pulls as having a load) 5 amps, but the wall adapter can only allow a 2 amp draw, then the device will only get a load of 2 amps.

Examples of common values for voltage and amps: 9v, 12v, 1000ma (1A), 250ma. Amp is 'A' and milliamp is 'ma'.

If the output is AC (Alternating Current) voltage, the wall adapter is just a step up or step down voltage converter. If the output voltage is DC (Direct Current), then this would be called an AC to DC converter.

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