Components

SKU: SF-COM-00102 | Brand: SparkFun

Simple SPDT slide switch. Rated at 30V/200mA. The pins have .1" spacing - fits great into a breadboard! Use it as a power switch or general control switch.

SKU: SF-COM-00096 | Brand: SparkFun

High-quality radial electrolytic capacitors rated at 100 µF / 25 V. Ideal for power supply decoupling, transient suppression, and smoothing voltage ripple in your projects. Place one between power and ground rails to ...

SKU: DF-DFR0144 | Brand: DFRobot

This 4-channel relay shield from DFRobot plugs directly onto an Arduino Uno or compatible board, providing opto-isolated relay switching for controlling high-power devices such as lamps, water pumps, and motors. Each ...

SKU: SF-PRT-11026 | Brand: SparkFun

If you need to knock up a quick prototype there’s nothing like having a pile of jumper wires to speed things up, and let’s face it: sometimes you want quantity over quality. These are the same jumper wires that com...

SKU: SF-PRT-12796 | Brand: SparkFun

These are 6" long jumper wires with female connectors on both ends. Use these to jumper from any male header on any board, to any other male header. Combine these with our male to male jumpers to create a male to f...

SKU: WS-26462 | Brand: Waveshare

A programmable 3-key macro keyboard powered by the RP2040 microcontroller. Out of the box, the keys are mapped to Ctrl, C, and V — the essential copy-paste combo for programmers — but all three keys can be reprogramme...

SKU: LB-HS4342 | Brand: Little Bird

SKU: AF-4215 | Brand: Adafruit

Add a panel-mount Ethernet port to any enclosure without cutting custom shapes. This RJ-45 round panel mount extension cable fits a standard ~30 mm round hole — just drill with a common hole saw, unscrew the plastic n...

SKU: AF-5188 | Brand: Adafruit

The Adafruit DS3231 Precision RTC with STEMMA QT connectors is a highly accurate I2C real-time clock featuring an integrated temperature-compensated crystal oscillator (TCXO). Unlike standard RTCs that rely on an exte...

SKU: LB-LR0589-BLACK | Brand: Little Bird

A 12 mm panel-mount momentary push button with a smooth dome-shaped cap in black. Normally open — pressing the button closes the contacts. The dome design provides a satisfying tactile feel and sits flush with the pan...

SKU: LB-LR0589-RED | Brand: Little Bird

A 12 mm panel-mount momentary push button with a smooth dome-shaped cap in red. Normally open — pressing the button closes the contacts. The dome design provides a satisfying tactile feel and sits flush with the panel...

SKU: KI-2169 | Brand: Kitronik

This round 5V LED matrix lamp Kit offers a really bright light, which is compact and easy to mount. The unit is supplied with 9 white super flux LEDs, which collectively output around 16,000 mCd. The unit incorpora...

SKU: LB-LS2238 | Brand: Little Bird

This 520-piece connector kit contains everything you need to make custom 2.54mm (0.1″) Dupont-style jumper wires and harnesses. It includes a comprehensive selection of single-row and dual-row housings from 1-pin to 2...

SKU: AF-935 | Brand: Adafruit

The MCP4725 breakout board provides a 12-bit digital-to-analogue converter (DAC) over I2C. Send a digital value and the VOUT pin outputs the corresponding analogue voltage — ideal for generating waveforms, adjustable ...

SKU: AF-1769 | Brand: Adafruit

This JST PH 2-pin SMT right-angle connector is a surface-mount header designed to accept standard JST PH 2-pin plugs. It's commonly used as a battery connector on microcontroller boards, LiPo chargers, and small elect...

SKU: AF-1683 | Brand: Adafruit

This latching pushbutton toggle switch provides a simple push on / push off action — press once to turn on, press again to turn off. It delivers a satisfying tactile click and can reliably handle up to 500 mA at up to...

SKU: SF-COM-08642 | Brand: SparkFun

This is a small device called a reed switch. When the device is exposed to a magnetic field, the two ferrous materials inside the switch pull together and the switch closes. When the magnetic field is removed, the ...

SKU: DF-DFR0151 | Brand: DFRobot

The DS1307 Real Time Clock module developed by one of our designers: Waiman. The module comes fully assembled and pre-programmed with the current time (ok, so it's our current time - MST). The included Lithium co...

SKU: AF-2940 | Brand: Adafruit

These two Short Female Headers alone are, well, lonely. But pair them with any of our Feather boards and you're in business! These headers are particularly cute and tiny with a body height of just...

SKU: DF-FIT0322 | Brand: DFRobot

This package includes 17 species transistors in common use.It's convenient for you to make some small designs.You could find a suitable one for your type! A transistor is a semiconductor device used to amplify and sw...