Build Tutorials and Resources

SparkFun SEN-00246 Optical Detector / Phototransistor

SparkFun SEN-00246 Optical Detector / Phototransistor

SparkFun SEN-00246 Optical Detector / Phototransistor This sensor uses an infrared emitted diode combined with an infrared phototransistor to detect the reflected infrared signal. Ideal for sensing black-to-white transitions or can be used to detect nearby objects (.5-1cm). Documents: Datasheet

Transistor - NPN 2N3904

Transistor – NPN, 2N3904, Common BJT – TO-92

Transistor – NPN, 2N3904, Common BJT – TO-92 These are very common, high-quality BJT NPN transistors. Designed for use as general-purpose amplifiers and switches. The useful dynamic range extends to 100mA as a switch and to 100 MHz as an

Transistors - NPN, BC547, Bipolar BJT - TO-92

Transistors – NPN, BC547, Bipolar BJT – TO-92

Transistors – NPN, BC547, Bipolar BJT – TO-92 These are high-quality BJT NPN transistors that work well with audio applications, switching and amplifying Specifications: Transistor Polarity: NPN Collector-Emitter Voltage V(br)ceo: 45V Transition Frequency ft: 300MHz Power Dissipation Pd: 500mW DC

Red 7-segment clock display - 1_2 digit height

7-Segment Clock Display, 4 Digit, 1.2″ digit height

7-Segment Clock Display, 4 Digit, 1.2″ digit height I like big seven-segment displays and I cannot lie! Design a clock, timer or counter into your next project using our pretty, mars bar sized 4-digit seven-segment display. These bright crisp displays

PPADA124 Drawdio kit - v1.1 STEM Electronic Pencil Kit Main

Drawdio kit – v1.1 STEM Electronic Pencil Kit

Drawdio kit – v1.1 STEM Electronic Pencil Kit Drawdio is an electronic pencil that lets you make music while you draw! It’s great project for beginners: An easy soldering kit with instant gratification. Essentially, its a very simple musical synthesizer

White 7 Segment 4 Digit Display 0.56 inch

7-Segment Clock Display, 4 Digit, 0.56″ digit height

7-Segment Clock Display, 4 Digit, 0.56″ digit height Design a clock, timer or counter into your next project using our pretty 4-digit seven-segment display. These bright crisp displays are good for adding numeric output. Besides the four 7-segments, there are

Elektor MIT App Inventor Bundle Contents

Elektor MIT App Inventor Bundle

Elektor MIT App Inventor Bundle The Elektor MIT App Inventor Bundle is a kit built to help learn about developing apps for Android compatible mobile devices using the MIT App Inventor online development environment. MIT App Inventor projects can be

Circuit Playground Bluefruit - Bluetooth Low Energy - Adafruit 4333

Circuit Playground Bluefruit – Bluetooth Low Energy (4333)

Circuit Playground Bluefruit – Bluetooth Low Energy – Adafruit 4333 Circuit Playground Bluefruit is our third board in the Circuit Playground series, another step towards a perfect introduction to electronics and programming. We’ve taken the popular Circuit Playground Express and

Solenoid, Large, Push-Pull, 12VDC

Solenoid, Large, Push-Pull, 12VDC

Solenoid, Large, Push-Pull, 12VDC Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center

Solenoid, Small, Push-Pull, 12VDC

Solenoid, Small, Push-Pull, 12VDC

Solenoid, Small, Push-Pull, 12VDC Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center

Medium Push-Pull Solenoid - 5V or 6V

Solenoid, Medium Push-Pull, 5V or 6V

Solenoid, Medium Push-Pull, 5V or 6V Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into

Lock Style Solenoid - 12VDC

Solenoid, Lock Style, 12VDC

Solenoid, Lock Style, 12VDC Solenoids are basically electromagnets: they are made of a big coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the center

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