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SparkFun Decade Resistance Box
This is the SparkFun Decade Resistance Box, an involved PTH soldering kit that allows you to quickly and accurately dial in a specific resistance value between 0 and 999,990 Ω, in 10 Ω increments. The concept is simple, a decade box is a tool that contains resistors of many values that can be acc...
Rotary Switch - 10 Position
This is a single pole, 10 position rotary switch able to select up to 10 different states in a durable package. Unlike our other rotary switch, this model is much more robust and capable of handling larger currents and voltages. You may find this rotary switch familiar, it’s the same one we tr...
Power Resistor Kit - 10W (25 pack)
Holy Wattage, Batman! This Power Resistor Kit comes with 5 each of 5 different 10 Watt resistor values including 1, 2, 4, 8, and 16 Ohms. These resistors are capable of dissipating large amounts of power without damaging themselves. This kit is perfect for testing projects that require large amou...
SparkFun Parts Box - LilyPad (Magnetic)
When you’re working with e-textiles, you have a tendency to collect a lot of small parts: LilyPad boards, bobbins, needles, the tools of the trade. Why not pick up a sturdy little box to keep your bits and pieces off the floor? This LilyPad branded box is made from rigid cardboard printed with a ...
SparkFun Ardumoto Shield Kit
Robots are fun, and Arduinos are easy. So wouldn’t it be nice if there were a kit that included everything you need to get your Arduino device set up to control a simple two-motor-circuit buddy? The SparkFun Ardumoto Shield Kit is perfect for any robot enthusiast and includes an Ardumoto Shield, ...
SparkFun Big Red Box Proto Board
The SparkFun Big Red Box Proto Board is a large, custom made PCB that has been specifically designed to be used with and installed into our Big Red Box. This board features a large prototyping area with exactly 1,488 solder points (yes, we counted). With this proto board you will be able to...
SparkFun Large Parts Box - LilyPad (Magnetic)
A sturdy, LilyPad-branded storage box for organising e-textile components, small parts, and craft supplies. Made from rigid cardboard with a tone-on-tone printed pattern, label space, and magnetic lid closures, it keeps your LilyPad boards, bobbins, needles, and other small items tidy and protect...
RFID Qwiic Kit with ID-12LA 125kHz Reader
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This kit gives you the core hardware needed to start reading 125kHz RFID tags over I2C, without hunting for a separate reader module, antenna or wiring up a complex circuit. The box includes a SparkFun RFID Qwiic Reader, an ID-12LA RFID reader module, two 125kHz RFID cards and a 100mm Qwiic cable...
PT100 Platinum RTD Temperature Sensor
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This PT100 is a platinum RTD (Resistance Temperature Detector) for accurate temperature sensing. It has a nominal resistance of 100Ω at 0°C, with resistance changing as temperature changes.It is suitable for applications across a broad temperature range, and is commonly used where stable, repeata...
5-Position SMD D-Pad Directional Switch
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This compact 5-way directional pad gives your microcontroller project a familiar tactile input for up, down, left, right and centre presses.It is an SMD switch, making it suitable for custom PCBs where you need a low-profile navigation control or menu input without using multiple separate buttons...
SparkFun XBee 3 Wireless Kit
This is the SparkFun XBee 3 Wireless Kit, the perfect box full of goodies to get you started using XBees. Inside this kit you will find two XBee 3 Modules, one XBee Explorer, one Xbee Shield and a set of Arduino R3 headers to solder onto the shield. Our entire goal for the XBee Kit was to make wi...
SparkFun Soil Moisture Sensor
The SparkFun Soil Moisture Sensor is a simple breakout for measuring the moisture in soil and similar materials. The soil moisture sensor is pretty straight forward to use. The two large exposed pads function as probes for the sensor, together acting as a variable resistor. The more water that is...
Resistance Is Fruitful Resistor Zine
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Get to grips with one of the most common, and often most misunderstood, parts in electronics: the humble resistor. This 24-page zine is made to help makers feel more confident with resistance, resistor behaviour, and the maths behind controlling the flow of electricity.Rather than glossing over t...
ACS37800 Qwiic Power Meter
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Built around the Allegro ACS37800, this Qwiic power meter lets your project monitor voltage and current at the same time over I2C. It is designed for higher-demand loads such as 3D printers, UAVs and solar panels, with voltage monitoring up to 60VDC and current sensing up to 30A.The ACS37800 uses...
Ideal Diode Breakout
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Keep your project powered through power-supply hot swaps with this compact ideal diode breakout from SparkFun. It provides reliable one-way voltage control for dynamic power selection and switchover, over-voltage protection, and designs that need a stable power input.The board breaks out four cha...
SparkFun Electret Microphone Breakout
The SparkFun Electret Microphone Breakout pairs a small electret microphone capsule with a 60× OPA344 op-amp preamplifier, making it easy to detect sound with a microcontroller's analogue-to-digital converter. Pick up voice, claps, knocks, or ambient noise — the amplified signal is ready to read ...
SparkFun Rotary Switch Potentiometer Breakout
The SparkFun Rotary Switch Potentiometer Breakout is a small board the allows you to add resistors to a 10-position rotary switch, turning it into a potentiometer with 10 discrete steps. Multiple applications require potentiometers that are hard to find due to specific resistance values or cus...
SparkFun RFID Starter Kit
This it the SparkFun RFID Starter Kit, an all-in-one kit that offer everything you need to get your next RFID project off the ground. This kit includes our USB RFID Reader, ID-12LA RFID module, and two 125kHz RFID cards. We’ve done away with the annoying clamshell and now offer this in the same t...
SparkFun Humidity and Temperature Sensor Breakout - Si7021
A low-cost, highly accurate digital humidity and temperature sensor breakout board based on the Silicon Labs Si7021. Communicates over I²C with just two data lines, providing relative humidity and precise temperature readings for environmental monitoring projects. The breakout includes built-in ...
SparkFun Load Cell Amplifier - HX711
The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell, and with some calibration you’ll be...