Electronics and STEM

What should every hacker have available to them? That's right, a screwdriver (you have to get into those cases somehow). What makes screwdrivers even better is when there are a variety of...

What should every hacker have available to them? That's right, a screwdriver (you have to get into those cases somehow). What makes screwdrivers even better is when there are a variety of interchangeable bits to use in different situations as you need them. This Pocket Screwdriver Set provides you with just that service in a small, portable package. Each Pocket Screwdriver Set offers 7 different chrome vanadium bits, four flathead options and three Phillips head options, that fit snuggly in...

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral...

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for a pack of 20 individual crimp pins. We regularly use a pair of needle nose pliers and a soldering iron to attach these pins. No special tools required. Be sure to order the mating header and housing! Get Started with the How to Crimp an Electrical Connector Hookup Guide...

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral...

Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for the female housing. Be sure to order the mating header and crimp pins! Pins have standard 0.1" spacing. Get Started with the How to Crimp an Electrical Connector Hookup Guide Documents: Hookup Guide ...

Polymorph is a non-toxic, biodegradable polyester with a low melting temperature of about 60°C (140°F). Prototype plastic parts can be made by simply heating the plastic beads in hot water until...

Polymorph is a non-toxic, biodegradable polyester with a low melting temperature of about 60°C (140°F). Prototype plastic parts can be made by simply heating the plastic beads in hot water until they turn clear and then kneading them together and shaping by hand. When it cools it becomes a nylon-like white plastic. Polymorph can be re-used by simply re-heating and re-shaping. Plastic beads are supplied in a re-usable plastic container. So what do you do with it? Robotics, small-parts...

Polymorph is a non-toxic, biodegradable polyester with a low melting temperature of about 60°C (140°F). Prototype plastic parts can be made by simply heating the plastic beads in hot water until...

Polymorph is a non-toxic, biodegradable polyester with a low melting temperature of about 60°C (140°F). Prototype plastic parts can be made by simply heating the plastic beads in hot water until they turn clear and then kneading them together and shaping by hand. When it cools it becomes a nylon-like white plastic. Polymorph can be re-used by simply re-heating and re-shaping. Plastic beads are supplied in a heat-sealed plastic bag to prevent spillage during transport. So what do you do with...

Here at SparkFun, we refuse to leave 'good enough' alone. That's why we're adding to our line-up of Arduino-compatible microcontrollers once more! The Pro Micro is similar to the Pro Mini except...

Here at SparkFun, we refuse to leave 'good enough' alone. That's why we're adding to our line-up of Arduino-compatible microcontrollers once more! The Pro Micro is similar to the Pro Mini except with an ATmega32U4 on board. The USB transceiver inside the 32U4 allows us to add USB connectivity on-board and do away with bulky external USB interface. This tiny little board does all of the neat-o Arduino tricks that you're familiar with: 9 channels of 10-bit ADC, 5 PWM pins, 12 DIOs as well as...

    John Jay based in Georgia, USA, is a retired engineer who designed some boards for the Raspberry Pi to help his partner to learn Raspberry Pi. Although at first it was a...

    John Jay based in Georgia, USA, is a retired engineer who designed some boards for the Raspberry Pi to help his partner to learn Raspberry Pi. Although at first it was a small act that just for his friends, but with the growing people in the open-source community participating, more and more people find that these packages really works. So, he decided to releases these kits. Cooperated with Elecrow, these packages have been produced quickly. And here with Elecrow, we...

Combines the power of screw shield and prototyping shield. This Proto Screw shield offers a better way to do prototyping. The Screw terminal can be screwed directly to the terminal on the thread and...

Combines the power of screw shield and prototyping shield. This Proto Screw shield offers a better way to do prototyping. The Screw terminal can be screwed directly to the terminal on the thread and is reliable and convenient. It can be plugged into the Arduino controller. You can use this shield to save yourself from the bad port connection. Feel secure with this arduino-compatible screw shield. The prototyping shield provides a fast prototpying area for projects. It features a LED (D13) and...

This is a very simple but extremely handy, 1" square, single sided perf board. Standard 0.1" spacing with a 4-40 (3mm) hole for mounting. Every three holes are connected with a 20mil trace. **...

This is a very simple but extremely handy, 1" square, single sided perf board. Standard 0.1" spacing with a 4-40 (3mm) hole for mounting. Every three holes are connected with a 20mil trace. ** Package of 2**

This high gain, 7.75" antenna is perfect for AVL applications where cellular reception is a must. Connector is regular SMA so don't confuse it with 2.4GHz antennas. Specifications: GSM/850E : 824 to...

This high gain, 7.75" antenna is perfect for AVL applications where cellular reception is a must. Connector is regular SMA so don't confuse it with 2.4GHz antennas. Specifications: GSM/850E : 824 to 894MHz GSM : 880 to 960MHz DCS : 1710 to 1880MHz PCS : 1850 to 1990MHz Documents: Datasheet

This is a fantastic find for SFE. A small, high-quality, quad-band, standard SMA terminated, cellular antenna. Specifications: GSM/850E : 824 to 894MHz GSM : 880 to 960MHz DCS : 1710 to 1880MHz PCS...

This is a fantastic find for SFE. A small, high-quality, quad-band, standard SMA terminated, cellular antenna. Specifications: GSM/850E : 824 to 894MHz GSM : 880 to 960MHz DCS : 1710 to 1880MHz PCS : 1850 to 1990MHz Documents: GSM Antenna 850-1900MHz

Quadstepper Motor Driver Board Description: The Quadstepper motor driver board allows you to control up to 4 bipolar stepper motors simultaneously using logic level IO pins. Each motor driver has an...

Quadstepper Motor Driver Board Description: The Quadstepper motor driver board allows you to control up to 4 bipolar stepper motors simultaneously using logic level IO pins. Each motor driver has an output drive capacity of 35V and 1Amps. The board is capable of driving motors in full, half, quarter, eight, and sixteenth-step modes. The logic levels are selectable between 3.3V and 5V by way of a jumper. The bus header allows you to control all four motors with only 6 IO pins by...

Quick Disconnect - Female 1/5 (bag of 50) Description: These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are...

Quick Disconnect - Female 1/5 (bag of 50) Description: These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these standard connectors. These Female quick-disconnects are about 1/5" wide and can be crimped onto 16-14 AWG wire. Mating connectors can be found in the related items. Documents: Datasheet " ...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these standard connectors. These Female quick-disconnects are about ¼" wide and can be crimped onto 16-14 AWG wire. Mating connectors can be found in the related items. Documents: Datasheet " ...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these standard connectors. These Male quick-disconnects are about ¼" wide and can be crimped onto 22-16 AWG wire. Mating connectors can be found in the related items. Documents: Datasheet " ...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these...

"These connectors are really useful as power connectors in prototyping or in projects that are repeatedly assembled and disassembled. There are also a variety of buttons and lights that use these standard connectors. These Male quick-disconnects are about 1/5" wide and can be crimped onto 22-16 AWG wire. Mating connectors can be found in the related items. Documents: Datasheet " ...

Here is a tiny 4-pin Qwiic 1mm JST connector. This connector is used on all of our Qwiic-based boards and can be used to create your own I2C-based device compatible with the Qwiic system....

Here is a tiny 4-pin Qwiic 1mm JST connector. This connector is used on all of our Qwiic-based boards and can be used to create your own I2C-based device compatible with the Qwiic system. Additionally, this connector will mate with all of our Qwiic cables with a solid lock. The SparkFun Qwiic connect system is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector....

The Raspberry Pi is THE new favorite of development platforms, so the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy clear plastic...

The Raspberry Pi is THE new favorite of development platforms, so the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy clear plastic enclosures? These clear cases protect the Raspberry Pi 3, RPi2, and Model B+ from things like rogue wires that might short it out while still allowing full access to the board as well as proper airflow to keep your new toy cool! Simply snap the RPi into the bottom half of the enclosure, then snap the two...

The Raspberry Pi 400 is a complete Raspberry Pi 4-based personal computer, integrated into a keyboard. By incorporating the board into a keyboard, it removes the need for a case and other...

The Raspberry Pi 400 is a complete Raspberry Pi 4-based personal computer, integrated into a keyboard. By incorporating the board into a keyboard, it removes the need for a case and other accessories normally needed to run a Raspberry and creates a more clean configuration. It makes for the perfect configuration for a public machine or in an educational setting including the incorporation of a Kensington lock (Locking port used on laptops for security in public spaces). The Raspberry Pi 400...

The Raspberry Pi Active Cooler provides an alternative cooling solution for users who wish to use their Raspberry Pi 5 under sustained heavy load without a case. It combines a large metal heatsink...

The Raspberry Pi Active Cooler provides an alternative cooling solution for users who wish to use their Raspberry Pi 5 under sustained heavy load without a case. It combines a large metal heatsink with a variable-speed blower, again powered and controlled via the fan connector, and attaches to the Raspberry Pi 5 PCB via sprung pins into a pair of mounting holes. Features: A single-piece anodized aluminium heatsink Heatsink-mounted, temperature-controlled fan 5V blower fan with max speed of...

This 8mp camera module is capable of 1080p video and still images that connect directly to your Raspberry Pi. This is the plug-and-play-compatible latest version of the Raspbian operating system,...

This 8mp camera module is capable of 1080p video and still images that connect directly to your Raspberry Pi. This is the plug-and-play-compatible latest version of the Raspbian operating system, making it perfect for time-lapse photography, recording video, motion detection and security applications. Connect the included ribbon cable to the CSI (Camera Serial Interface) port on your Raspberry Pi, and you are good to go! The board itself is tiny, at around 25mm x 23mm x 9mm and weighing in at...

"The Raspberry Pi is THE new favorite of development platforms, so the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy black...

"The Raspberry Pi is THE new favorite of development platforms, so the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy black plastic enclosures? These cases protect the RPi2 and Model B+ from things like rogue wires that might short it out while still allowing full access to the board as well as proper airflow to keep your new toy cool! Simply snap the RPi into the bottom half of the enclosure, then snap the two sides together....

This 2x20 male header has the same number and spacing of pins as a Raspberry Pi but is best served when used in conjunction with the Pi Zero since they come with a space of unpopulated headers. This...

This 2x20 male header has the same number and spacing of pins as a Raspberry Pi but is best served when used in conjunction with the Pi Zero since they come with a space of unpopulated headers. This through-hole header has 40 0.1"-spaced pins and can just be snapped into place with minimal soldering! Documents: Dimensional Drawing

This 2x20 shrouded header has the same number and spacing of pins as a Raspberry Pi so you can easily connect via ribbon cable to the low-level peripherals and get hacking! This through-hole header...

This 2x20 shrouded header has the same number and spacing of pins as a Raspberry Pi so you can easily connect via ribbon cable to the low-level peripherals and get hacking! This through-hole header has 40 0.1"-spaced pins and is keyed for polarity. Check the related items below for the mating cable! Documents: Datasheet Videos ...

The Raspberry Pi Micro USB to USB-C Adapter is a small adapter that allows a male Micro-B USB power adapter the ability to power devices with a female USB Type C port, specifically the Raspberry Pi...

The Raspberry Pi Micro USB to USB-C Adapter is a small adapter that allows a male Micro-B USB power adapter the ability to power devices with a female USB Type C port, specifically the Raspberry Pi 4. This adapter is perfect for those looking to power their Raspberry Pi 4 with their power supply from the Raspberry Pi 3 line. Features: USB Micro B Female port USB Type C Male Port 15mm overhang when connected to your Raspberry Pi ...

The Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces. It feature the RP2040 which marks Raspberry Pi's first microcontroller designed...

The Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces. It feature the RP2040 which marks Raspberry Pi's first microcontroller designed in-house. Pico provides minimal (yet flexible) external circuitry to support the RP2040 chip (Flash, crystal, power supplies and decoupling and USB connector). The majority of the RP2040 microcontroller pins are brought to the user IO pins on the left and right edge of the board. Four RP2040 IO are used for...

The Raspberry Pi Zero is half the size of a Model A+, with twice the utility. A tiny Raspberry Pi that’s affordable enough for any project! At $10, the Raspberry Pi Zero is an incredibly affordable...

The Raspberry Pi Zero is half the size of a Model A+, with twice the utility. A tiny Raspberry Pi that’s affordable enough for any project! At $10, the Raspberry Pi Zero is an incredibly affordable single board computer that works as well headless as it does as a traditional PC. It features the same 40 pin connector you'll find on the other Raspberry Pi single board computers as well as the CSI camera connector (a special ribbon cable is required). The Broadcom BCM2835 1GHz processor supplies...

Raspberry Pi Zero is a a super-small, hackable, and ultra-low-cost computer. It is half of the size of a Model A+, with twice the utility. It just looks like a slimmed down version of the Raspberry...

Raspberry Pi Zero is a a super-small, hackable, and ultra-low-cost computer. It is half of the size of a Model A+, with twice the utility. It just looks like a slimmed down version of the Raspberry Pi we know and love. It's kind of like the little brother to the Pi 2 - with just a micro SD card slot, a mini HDMI port, two micro USB ports (one for power, one for USB), and 512MB of RAM. It has a single-core 1 GHz processor chip, similar to the Pi A+ and B+. Actually it’s 40% faster than the...

The Raspberry Pi Zero Case has been designed to fit both the Pi Zero and the Pi Zero W. These official cases consist of several parts and protect the Raspberry Pi Zero from things like rogue wires...

The Raspberry Pi Zero Case has been designed to fit both the Pi Zero and the Pi Zero W. These official cases consist of several parts and protect the Raspberry Pi Zero from things like rogue wires that might short it out while still allowing full access to the board. Simply snap the RPi into the bottom half of the enclosure, then snap on a desired top. No tools required! Each case has a standard base featuring a cut-out to allow access to the GPIO, and a choice of three lids: a standard lid, a...

The credit-card-sized computer has become even smaller! The Raspberry Pi Zero W is still the Pi you know and love, but at a largely reduced size of only 65mm long by 30mm wide and at a very...

The credit-card-sized computer has become even smaller! The Raspberry Pi Zero W is still the Pi you know and love, but at a largely reduced size of only 65mm long by 30mm wide and at a very economical price. With the addition of wireless LAN and Bluetooth, the Raspberry Pi Zero W is ideal for making embedded Internet of Things (IoT) projects. The Pi Zero W has been designed to be as flexible and compact as possible with mini connectors and an unpopulated 40-pin GPIO, allowing you to use only...

The credit-card-sized computer has become even smaller! The Raspberry Pi Zero W is still the Pi you know and love, but at a largely reduced size of only 65mm long by 30mm wide and now with headers!...

The credit-card-sized computer has become even smaller! The Raspberry Pi Zero W is still the Pi you know and love, but at a largely reduced size of only 65mm long by 30mm wide and now with headers! With the addition of wireless LAN and Bluetooth, the Raspberry Pi Zero W is ideal for making embedded Internet of Things (IoT) projects. The Pi Zero W has been designed to be as flexible and compact as possible with mini connectors and a populated 40-pin GPIO. At the heart of the Raspberry Pi Zero W...

RaspiRobot Board Description: The Raspberry Pi packs plenty of processing power in a small and inexpensive package and that makes it perfect for robot brains! The only problem? The Raspberry Pi may...

RaspiRobot Board Description: The Raspberry Pi packs plenty of processing power in a small and inexpensive package and that makes it perfect for robot brains! The only problem? The Raspberry Pi may have plenty of low-level hardware peripherals but motor controllers aren't one of them. That's why the RaspiRobot project got started. The RaspiRobot board is an expansion board for the Pi that turns it into a robot controller. The board comes as a kit of through-hole parts which is easy to...

    John Jay based in Georgia, USA, is a retired engineer who designed some boards for the Raspberry Pi to help his partner to learn Raspberry Pi. Although at first it was a...

    John Jay based in Georgia, USA, is a retired engineer who designed some boards for the Raspberry Pi to help his partner to learn Raspberry Pi. Although at first it was a small act that just for his friends, but with the growing people in the open-source community participating, more and more people find that these packages really works. So, he decided to releases these kits. Cooperated with Elecrow, these packages have been produced quickly. And here with Elecrow, we...

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...

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 reeds separate and the switch opens. This makes for a great non-contact switch. This switch can carry up to 1.2A. Documents: Datasheet Hookup Guide Application Note Videos ...

This Relay Shield v2.0 from Evil Mad Scientist is a simple Arduino add-on that gives your Arduino the ability to control a single electromechanical relay for switching loads of up to 24VDC or 40VAC....

This Relay Shield v2.0 from Evil Mad Scientist is a simple Arduino add-on that gives your Arduino the ability to control a single electromechanical relay for switching loads of up to 24VDC or 40VAC. Each Relay Shield comes equipped with a single pole - double throw (SPDT) sealed relay which can handle a current load of up to 5A. This means that when current is applied to the coil it throws a simple changeover switch, terminating the connection from the NC (Normally Closed) contact to ground...

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay's coil is rated up to 12V, with a minimum switching...

These are high quality Single Pole - Double Throw (SPDT) sealed relays. Use them to switch high voltage, and/or high current devices. This relay's coil is rated up to 12V, with a minimum switching voltage of 5V. The contacts are rated up to 5A (@250VAC, 30VDC). Note: In the Datasheet below there is a pin layout listed as "Bottom View." Be aware, this pin layout is actually the top-down view NOT bottom-up. Features: 5V DC SPDT Relay Rated up to 5A Fully Sealed Documents: Datasheet ...