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Components

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MicroSD Card Adapter
$0.20  
26 pc(s)
The micro SD card adapter looks like a regular-sized SD card with a slot in it for the microSD card. It allows you to transfer data between your device and a computer.
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microSD USB Reader
$3.50  
5 pc(s)
This is an awesome little microSD USB reader. Just slide your microSD card into the inside of the USB connector, then stick this into a USB port and the card's contents will pop up on your computer. Very sneaky - we love it! This little guy is great for pulling data logs off microSD media. This...
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Mini USB Microphone
$7.95  
2 pc(s)
This plug-and-play Mini USB Microphone needs no driver, and its USB interface means you can use it with any computer, laptop, SBC, etc! Works great with a Raspberry Pi computer, but you can also use it with any other computer you want to record audio on. Simply plug it right in and...
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NPN Transistors - 2N2222A
$0.50  
19 pc(s)
2N2222A is designed for high speed switching application at collector current up to 600mA, and feature useful current gain over a wide range of collector current, low leakage currents and low saturation voltage.
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NPN Transistors - 45V 800mA (BC337)
$0.50  
677 pc(s)
This BC337 is a drop-in replacement for the 2N2222 Transistor This is the BC337, an NPN silicon BJT (Bipolar Junction Transistor). This little transistor can help in your project by being used to help drive large loads or amplifying or switching applications. The BC337 is specifically rated...
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-50%
Passive Buzzer - PCB Mount 12mm 2.048kHz
$0.25 $0.50  
230 pc(s)
This is a small 12mm round passive buzzer that operates around the audible 2kHz range. We drove it directly from a 3v to 5V Arduino or micro:bit to generate simple melody. Note : This passive buzzer requires a square wave (PWM) signal to make a sound or to play melodies. The frequency...
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Passive Piezo Buzzer w/Leads -13mm
$2.90  
3 pc(s)
This is a small 13mm round passive buzzer that operates around the audible 4kHz range. We drove it directly from a 3v to 5V Arduino or micro:bit to generate simple melody. The buzzer leads are terminated with male pin. Note : This passive buzzer requires a square wave (PWM) signal to...
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-30%
Potentiometer 10K with Knob
$0.95 $1.35  
577 pc(s)
There are lots of potentiometer out there. Some are very large, some so small they require a screwdriver. This 10K potentiometer has a small knob built right in and it's breadboard friendly to boot! Perfect for your next LCD contrast adjuster, opamp setting, or volume level. This model # is...
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Potentiometer Knob
$0.50  
10 pc(s)
This is a great looking rubberized knob for the potentiometer. Slides onto the Single Turn Potentiometer and holds tightly with a strong friction fit.
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Resistor 10K Ohm 1/4 Watt PTH (10 pcs)
$0.70  
45 pc(s)
1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 10K resistors make excellent pull-ups, pull-downs, and current limiters.
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Resistor 1K Ohm 1/4 Watt PTH (10 pcs)
$0.70  
43 pc(s)
1k Ohm, 1/6th Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards.
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Resistor 330 Ohm 1/4 Watt PTH (10 pcs)
$0.70  
46 pc(s)
1/4 Watt, +/- 5% tolerance PTH resistors. Commonly used in breadboards and perf boards, these 330Ohm resistors make excellent LED current limiters and are great for general use.
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