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0.1 (2.54 mm) Arduino Male Pin Headers (Straight Black 10pcs)
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Price: $5.00
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DFRobot Item #: FIT0084 -

This is a blue colored 40 Pin 2.54 mm?0.1"? single row pin header strip from DFRobot. These 0.1" header strips are commonly used as low-cost Arduino connectors. The standard spacing allows use with solderless breadboards, perforated prototyping PCBs, female headers, and our premium and pre-crimped jumper wires. The single-row header strips can easily be snapped into smaller strips to fit your application. These colored pin headers will help you label pin rails depending on their function. We...

0.1 (2.54 mm) Arduino Male Pin Headers (Straight Blue 10pcs)
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Price: $5.34
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DFRobot Item #: FIT0084-B -

This is a blue colored 40 Pin 2.54 mm?0.1"? Single Row Pin Header Strip from DFRobot. These 0.1" header strips are commonly used as low-cost Arduino connectors. The standard spacing allows use with solderless breadboards, perforated prototyping PCBs, female headers, and our premium and pre-crimped jumper wires. The single-row header strips can easily be snapped into smaller strips to fit your application. We commonly use: Green for digital I/O Blue for Analog I/O Red for VoltageBlack for...

0.1 (2.54 mm) Arduino Male Pin Headers (Straight Green 10pcs)
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Price: $5.34
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DFRobot Item #: FIT0084-G -

This is a green colored 40 Pin 2.54 mm(0.1") Single Row Pin Header Strip from DFRobot.These 0.1" header strips are commonly used as low-cost Arduino connectors. The standard spacing allows use with solderless breadboards, perforated prototyping PCBs, and female headers such as those used on our Romeo robot controllers. These header strips can easily be snapped into smaller strips to fit your application. These colored pin headers will help you label pin rails depending on their function. We...

0.1 (2.54 mm) Arduino Male Pin Headers (Straight Red 10pcs)
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DFRobot Item #: FIT0084-R -

This is a red colored 40 Pin 2.54 mm(0.1") Single Row Pin Header Strip from DFRobot.These 0.1" header strips are commonly used as low-cost Arduino connectors. The standard spacing allows use with solderless breadboards, perforated prototyping PCBs, and female headers such as those used on our Romeo robot controllers. These header strips can easily be snapped into smaller strips to fit your application.These colored pin headers will help you label pin rails depending on their function. We...

0.1 (2.54 mm) Arduino Male Pin Headers (Straight Yellow 10pcs)
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Price: $5.34
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DFRobot Item #: FIT0084-Y -

This is a blue colored 40 Pin 2.54 mm Single Row Pin Header Strip from DFRobot. These 0.1" header strips are commonly used as low-cost Arduino connectors. The standard spacing allows use with solderless breadboards, perforated prototyping PCBs, and female headers such as those used on our Romeo robot controllers. These header strips can easily be snapped into smaller strips to fit your application.These colored pin headers will help you label pin rails depending on their function. We commonly...

10A/20A Reversing Switch
Price: $3.97
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Elecrow Item #: EL-DIY10200S -

The latest design of products, very convenient, this design is a small product, more suitable for motor, water pump, air pump and so on. Friends convenience of our DIY model design! This DPDT rocker switch is prewired with jumper bars reversing the polarity in one position. Simply connect power and ground and two DC motor leads and the switch will reverse the motor direction. It is (On)-Off-(On) - momentary in both on positions. Its Black body and button with internal gasket that keeps water...

2 In 1 TF Cards Dual System Switcher for Raspberry Pi
Price: $26.95
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Elecrow Item #: EL-RPA05036T -

This 2IN1 Two TF cards commutator is specially designed for Raspberry pi B+/2B/3B with double switch systems. You could enjoy the convenience of using two TF cards at the same time to transfer to different systems for playing at the poking of the switch. Moreover if you could change the dial switch to arduino or SCM GPIO controlled, it could help you realize wireless/ remote/ infrared remote control system etc. Note: It should be used when off power or its system will be damaged when on power...

2.54mm Standard Computer/Circuit Board Shunts Short  Jumper Caps (100pcs Pack)
Price: $0.99
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Elecrow Item #: EL-CCC01505C -

Jumper Cap also known as short circuit block, which is an activity component consisted of the outer insulating plastics sphere and the inner conductive material. It is mainly used as a small switch for controlling the current on a circuit board, also can be used to connect two jumper pins just plug it on the jumper pin. In addition, we call it ?ON? if the jumper cap is button up the jumper pin and the current is passed, else called ?OFF? that the circuit is in off state. Specifications...

40  Pin Break Away Male Header- Right Angle-10 Pcs
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Price: $5.00
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DFRobot Item #: FIT0100 -

A row of right angle headers - break to fit. 40 pins that can be cut to any size. Used with custom PCBs or general custom headers.|ShippingList| 40 Pin Header x10

6 Pin Female Header-10 Pcs
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Price: $5.00
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DFRobot Item #: FIT0106 -

This is a 6-pin female header which is used on Arduino board.|Specification| Pins are spaced by 0.1".|ShippingList| 6 Pin Header x10

Alligator Clip
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Price: $0.58
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Sparkfun Item #: PRT-00111 -

"A staple for the electrical engineer. I can’t tell you how many times I’ve been one clip short! Note: Sold as a single unit."

Alligator Clips - Toothless
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Price: $1.09
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Sparkfun Item #: PRT-10290 -

"These alligator clips are useful for smaller wires that you don’t want to deform. The clip has smooth flat metal blades that clamp down on the wire, making for a good connection to thinner wires. There are strain relief crimp points and a solder hole at the end of the clip. Sold in single units. Documents: Datasheet (502008) "

Analog Panel Meter - 0 to 5 VDC
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Price: $5.96
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Sparkfun Item #: TOL-10285 -

"This analog panel meter measures DC voltage from 0-5 volts with 2.5% accuracy. It has a clear and easy to read scale and an adjustable dial. These come in handy for measuring the output of sensors with 5V ranges. The face of the meter is 45x45mm overall. The mounting hole should be 38mm. The overall depth of the meter is 35mm. Documents: Product Sheet "

Battery Holder with Switch - 3 x AAA
Price: $1.66
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Elecrow Item #: EL-PSB00303B -

    The 3 x AAA Battery Holder with Switch puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 145mm, and the last 5mm of them are tinned. It is series connection.SpecificationBattery Type : AAABattery Qty : 3With Cover : YESWith Switch : YESHolder color :...

Black Chicken Head Knob - 14x20mm
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Price: $1.09
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Sparkfun Item #: COM-10000 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. The main body of these knobs have a 14mm, but extend to 32mm overall. They also have a brass insert for a tighter fit with the shaft. Dimensions: 14mm high 20mm diameter 6mm depth for shaft "

Black Knob - 15x19mm
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Price: $1.09
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Sparkfun Item #: COM-09998 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. Dimensions: 15mm high 19mm diameter "

Black Metal Knob - 14x24mm
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Price: $1.73
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Sparkfun Item #: COM-10002 -

"Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft. The knob slides onto the potentiometer and holds tightly with a strong friction fit. The main body of these knobs is metal with a plastic insert. The outside is knurled for precise adjustment. Dimensions: 14mm high 24mm diameter "

bladeRF x40
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Price: $714.84
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Sparkfun Item #: WRL-14041 -

"The bladeRF x40 is an affordable USB 3.0 Software-Defined Radio (SDR) designed to allow students and RF enthusiasts to explore wireless communication, and to provide professionals with a versatile COTS waveform development platform. The bladeRF x40 is a great next step after using an SDR like the HackRF One, especially with the built-in FPGA providing you with more user-defined options. Out of the box, the bladeRF can tune from 300MHz to 3.8GHz without the need for extra boards. Through open...

Blower - Squirrel Cage (12V)
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Price: $5.69
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Sparkfun Item #: COM-11270 -

"This DC Blower really moves some air! Pulling about 1Amp @ 12VDC, this blower is rated at 16CFM (although it seems like more to us). We’ve used this blower to build small hovercrafts and to cool off on a hot day, they’re also handy for inflating “transforming” e-textiles garments! Features: Rated Voltage: 6-12VDC Rated Current: 1Amp Rated Airflow: 16CFM Rated Power: 10W Outlet Diameter: 33mm Fan Speed: 3000-3500rpm " ...

Capacitor Ceramic 0.1uF
Price: $0.29
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Sparkfun Item #: COM-08375 -

"This is a very common 0.1uF capacitor. Used on all sorts of applications to decouple ICs from power supplies. 0.1" spaced leads make this a perfect candidate for breadboarding and perf boarding. Rated at 50V. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 399-4266-ND Documents:Power Supply Lecture Sold in single pieces"

Capacitor Ceramic 22pF
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Price: $0.29
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Sparkfun Item #: COM-08571 -

"This is a very common 22pF capacitor. Used with crystals for loading purposes. 0.1" spaced leads make this a perfect candidate for breadboarding and perf boarding. Rated at 200V. Documents:Crystal Oscillator Lecture Sold in single pieces"

Circuit Scribe Conductive Ink Pen
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Price: $30.64
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Sparkfun Item #: COM-13254 -

"This is the Circuit Scribe Conductive Ink Pen, a simple looking ball-point pen that allows you to draw circuits instead of soldering or wiring them to a breadboard. This is the same pen found in the Circuit Scribe Lite Kit just without the LED module and batteries, we understand that you may just need to draw out a quick circuit with your own parts or need a replacement pen. With Circuit Scribe you can draw exactly what you want, no wires or breadboard required. You can build a circuit with...

Circuit Scribe Maker Kit
Price: $136.07
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Sparkfun Item #: COM-13255 -

"This is the Circuit Scribe Maker Kit, a massive conductive ink pack with a full range of modules and other items that you can use to create cool circuits. Similar to the Lite Kit, this Circuit Scribe Maker Kit is easy to set-up, choose the modules you want to connect, draw your circuit lines with the included Conductive Ink pen and you’re good to go! With this kit you will be able to work with more advanced output components and sensors. Add sound to your circuits using the Buzzer...

Clear Plastic Knob
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Price: $1.09
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Sparkfun Item #: COM-10597 -

"This plastic knob accepts a 6mm shaft and has a 15mm outer diameter. They simple press-fit onto a shaft. These are clear so that they can be used with our illuminated rotary encoders. Documents: Dimensional Drawing "

Coin Acceptor - Programmable (3 coin types)
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Price: $27.23
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Sparkfun Item #: COM-11719 -

"Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three different kinds of coin! Whether you’re building your own arcade cabinet or just charging admission to your house, this programmable coin acceptor makes it easy to monetize your next project. The sensors in this coin acceptor use the thickness, diameter and fall time of the coins to identify them and it’s fully programmable so you’re not limited to any...

Coin Acceptor - Programmable (6 coin types)
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Price: $56.17
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Sparkfun Item #: COM-11636 -

"Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take up to 6 different kinds of coin! Whether you’re building your own arcade cabinet or just charging admission to your house, this programmable coin acceptor makes it easy to monetize your next project. The sensors in this coin acceptor use the thickness, diameter and fall time of the coins to identify them and it’s fully programmable so you’re not limited to any...

Color RGB Header (40pcs)
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Price: $15.34
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DFRobot Item #: FIT0342 -

These customized colored pin headers are extensively used in DFRobot's product range. For instance, we are the first who uses 3 colors to clearly indicate the roles that pin headers play: green - digital; blue - analog; red - powerWe hope these tiny colorful pin headers help you in your own prototyping,PCB designing projects. Enjoy making! |Applications| Prototyping Arduino processor or shield female headers Custom pcb design|Specification| Pins are spaced by 0.1". Arduino processor R3 header...

Copper Tape - 2" (50ft)
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Price: $19.57
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Sparkfun Item #: PRT-11081 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is adhesive-backed, a whopping 2" wide and comes in rolls of 50 feet. That’s a lot of copper. Thickness: 3 mil Documents: Datasheet Composition Product Video " ...

Copper Tape - 5mm (50ft)
Price: $4.26
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Sparkfun Item #: PRT-10561 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is adhesive-backed, 5mm wide and comes in rolls of 50 feet. Thickness: 3 mil"

Copper Tape - Conductive Adhesive, 2" (50ft)
Price: $23.83
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Sparkfun Item #: PRT-13828 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is backed by a conductive adhesive, is a whopping 2" wide, and comes in rolls of 50 feet. That’s a lot of copper. Documents: Datasheet MSDS " ...

Copper Tape - Conductive Adhesive, 5mm (50ft)
Price: $5.96
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Sparkfun Item #: PRT-13827 -

"Copper tape has countless applications in electronics from creating low-profile traces for electrical components to RF-shielding and antenna-making. Copper tape is even used to join things together using solder, like the stained glass on Tiffany lamps. This copper tape is backed by a conductive adhesive, is 5mm wide and comes in rolls of 50 feet. Perfect for more precise projects. Documents: Datasheet MSDS " ...

Digital Potentiometer - 10K
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Price: $1.73
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Sparkfun Item #: COM-10613 -

"Potentiometers are incredibly useful, whether you’re controlling the volume on your stereo or the ‘mood lighting’ in your room. The problem with traditional potentiometers is the fact that your microcontroller doesn’t have an easy way to interface with them. Digital Potentiometers solve that problem by allowing you to control a voltage splitter with digital signals. Wire it up just like a potentiometer and use serial signals to ‘turn the knob.’ Another...

Diode Rectifier - 1A 50V
Price: $0.17
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Sparkfun Item #: COM-08589 -

"This is a simple, very common rectifier diode. Often used for reverse voltage protection, the 1N4001 is a staple for many power, DC to DC step up, and breadboard projects. 1N4001 is rated for up to 1A/50V. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 1N4001-TPMSCT-ND Documents:Datasheet"

Diode Rectifier - 1A, 400V (1N4004)
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Price: $0.34
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Sparkfun Item #: COM-14884 -

"This is a simple, subminiature size, axial lead mounted rectifier diode. Often used for reverse voltage protection, the 1N4004 is a staple for many power, DC to DC step up, and breadboard projects. The 1N4004 is rated for up to 1A/400V. Documents: Datasheet "

Diode Small Signal - 1N4148
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Price: $0.17
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Sparkfun Item #: COM-08588 -

"This is a very common signal diode - 1N4148. Use this for signals up to 200mA of current. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : 1N4148FS-ND Documents: Datasheet "

Electrolytic Decoupling Capacitors - 1000uF/25V
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Price: $0.40
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Sparkfun Item #: COM-08982 -

"Electrolytic decoupling capacitors 1000uF/25V. These capacitors are great transient/surge suppressors and work well in high-voltage and audio applications. High quality radial electrolytic capacitors. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : P5156-ND Check out our Unregulated Power Supply Tutorial!"

Electrolytic Decoupling Capacitors - 100uF/25V
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Price: $0.40
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Sparkfun Item #: COM-00096 -

"Electrolytic decoupling capacitors 100uF/25V. These capacitors are great transient/surge suppressors. Attach one between the power and ground of your project to ensure smooth power delivery. High quality radial electrolytic capacitors. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : P10269-ND Check out our Unregulated Power Supply Tutorial"

Electrolytic Decoupling Capacitors - 10uF/25V
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Price: $0.52
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Sparkfun Item #: COM-00523 -

"Low-profile electrolytic decoupling capacitors 10uF/25V. These capacitors are great transient/surge suppressors and work well as charge pump caps for MAX232 circuits. High quality radial electrolytic capacitors. If you need a bunch of these, you can get good bulk discounts on Digikey, part # : P975-ND Check out our Unregulated Power Supply Tutorial"

Flexinol - 0.005" Diameter (1 foot)
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Price: $2.24
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Sparkfun Item #: COM-12095 -

"This 0.005" Flexinol® Actuator Wires (aka shape memory Nitinol) is a one foot long piece of nickel-titanium alloy that can flex and contract when a specific amount of heat or current is applied to it and are made specifically for linear actuators to replace small motors or solenoids. If you are asking yourself “What sorcery is this?!” We assure you, this isn’t magic, it’s just simple science thanks to shape memory and a change between the wires weaker, low...

Flexinol - 0.012" Diameter (1 foot)
Price: $2.98
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Sparkfun Item #: COM-12096 -

"This 0.012" Flexinol® Actuator Wires (aka shape memory Nitinol) is a one foot long piece of nickel-titanium alloy that can flex and contract when a specific amount of heat or current is applied to it and are made specifically for linear actuators to replace small motors or solenoids. If you are asking yourself “What sorcery is this?!” We assure you, this isn’t magic, it’s just simple science thanks to shape memory and a change between the wires weaker, low...

Fuse 5mm 125VAC 5A
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Price: $0.58
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Sparkfun Item #: COM-09772 -

"This is a glass ferrule type fuse. It fits great with our 5mm fuse clips. The fuse is rated for 125VAC, up to 5A. Fuses are pretty simple, if more than 5A pass through the fuse, the small filament inside the fuse heats up and breaks (like a light bulb burning out). The circuit is then broken and hopefully your circuit is saved from molten destruction. For smaller loads, you may want to checkout a PTC (aka resettable fuse) listed below. These handle less current (500mA) but can be set and...

Fuse 5mm 250V 200mA
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Price: $1.09
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Sparkfun Item #: COM-10165 -

"This is a glass ferrule type fuse. It fits great with our 5mm fuse clips. The fuse is rated for 250VAC, up to 200mA. Fuses are pretty simple, if more than 200mA pass through the fuse, the small filament inside the fuse heats up and breaks (like a light bulb burning out). The circuit is then broken and hopefully your circuit is saved from molten destruction. For smaller loads, you may want to checkout a PTC (aka resettable fuse) listed below. They handle less current (500mA) but can be set and...

Fuse 5mm 250V 500mA
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Price: $1.09
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Sparkfun Item #: COM-10166 -

"This is a glass ferrule type fuse. It fits great with our 5mm fuse clips. The fuse is rated for 250VAC, up to 500mA. Fuses are pretty simple, if more than 500mA pass through the fuse, the small filament inside the fuse heats up and breaks (like a light bulb burning out). The circuit is then broken and hopefully your circuit is saved from molten destruction. For smaller loads, you may want to checkout a PTC (aka resettable fuse) listed below. These handle less current (500mA) but can be set...

Fuse Clip 5mm
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Price: $0.29
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Sparkfun Item #: COM-09773 -

"This is a 5mm PTH fuse clip intended to be used with our Glass Fuses. Note: These are sold in single units. If you intend to secure a fuse using these clips you’ll need two clips. We recommend ordering two. Part #: 1A3399-10 Documents: Datasheet "

GTE Knob - Large
Price: $1.73
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Sparkfun Item #: COM-11950 -

"Do you need that extra push over the cliff? The Large sized GTE (Goes To Eleven) Knob can fit onto potentiometers with a 6mm wide shaft thanks to a brass insert with a set screw. We know that most of you are playing at ten, but with the GTE Knob you can go… one louder. Note: It goes to eleven. Dimensions: 36.9 x 15.1mm Documents: Dimensional Drawing Product Video " ...

GTE Knob - Small
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Price: $1.09
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Sparkfun Item #: COM-11951 -

"Do you need that extra push over the cliff? The Small sized GTE (Goes To Eleven) Knob can fit onto potentiometers with a 6mm wide shaft thanks to a brass insert with a set screw. We know that most of you are playing at ten, but with the GTE Knob you can go… one louder. Note: It goes to eleven. Dimensions: 23.6 x 14.2mm Documents: Dimensional Drawing Product Video " ...

HackRF One
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Price: $428.90
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Sparkfun Item #: WRL-13001 -

"This is the HackRF One, a Software Defined Radio (SDR) peripheral capable of transmission or reception of radio signals from 1MHz to 6GHz. Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation. If you are wondering what a SDR actually is, it’s OK we can help. A Software Defined Radio is essentially a radio communication device...

Hamburger Mini Speaker
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Price: $5.69
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Sparkfun Item #: COM-14023 -

"This will be a treat for your ears! The Hamburger Mini Speaker is a 3W economical speaker option for any project needing stand-alone sound. The Hamburger features a built-in lithium polymer battery for portable application, a 3.5mm stereo jack (sorry, iPhone 7 users) and two volume options (quiet and loud) to control how loud your sound needs to be. This speaker really can’t be compared to a good pair of JBLs, but for the price point the Hamburger won’t break the bank for your...