Electronics and STEM

The MAX31820 ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C...

The MAX31820 ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy. The device communicates over a one-wire bus that, by definition, requires only one data line (and ground) for communication with a central microprocessor. In addition, the device can derive power directly from the data line, eliminating the need for an...

"The LM358 is a great, easy-to-use dual-channel opamp. Opamps have so many applications we figured we should probably carry at least one in a DIP package. LM358 applications include transducer...

"The LM358 is a great, easy-to-use dual-channel opamp. Opamps have so many applications we figured we should probably carry at least one in a DIP package. LM358 applications include transducer amplifiers, DC gain blocks and all the conventional opamp circuits. If you’re looking for a good, standard opamp the LM358 should fill most of your needs. It can handle a supply of 3-32VDC and source up to 20mA per channel. This opamp is great if you need to operate two individual opamps from a...

Open Logic Sniffer - Probe Cable Kit Description: This is the probe cable for Open workbench Logic sniffer. It has a 1×9 connector and 9 leads with tweezer-style test clips. Each cable...

Open Logic Sniffer - Probe Cable Kit Description: This is the probe cable for Open workbench Logic sniffer. It has a 1×9 connector and 9 leads with tweezer-style test clips. Each cable connects 8 of the 16 buffered input channels, plus ground.

This panel mount USB micro-B extension cable enables you to more easily enclose a project that contains a USB micro-B port. The cable is 6" in length and includes two 14mm M3 screws compatible with...

This panel mount USB micro-B extension cable enables you to more easily enclose a project that contains a USB micro-B port. The cable is 6" in length and includes two 14mm M3 screws compatible with the cable's 3mm panel mount holes, spaced 16.5mm apart. Includes: 1x Panel Mount Micro-B USB Extension Cable 2x M3 Screw - 14mm Documents: Datasheet ...

Photo interrupter, photogate, photodiode, phototransistor, whatever you want to call it, this sensor is composed of an infrared emitter on one upright and a shielded infrared detector on the other....

Photo interrupter, photogate, photodiode, phototransistor, whatever you want to call it, this sensor is composed of an infrared emitter on one upright and a shielded infrared detector on the other. By emitting a beam of infrared light from one upright to the other, the sensor can detect when an object passes between the uprights, breaking the beam. Used for many applications including optical limit switches, pellet dispensing, general object detection, etc. Gap width = 10mm A breakout board is...

    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...

The Raspberry Pi is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect it with one of these snazzy plastic enclosures? These...

The Raspberry Pi is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect it with one of these snazzy plastic enclosures? These cases protect the Raspberry Pi 3, the RPi 2, and Model B+ 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 the two sides together. As you may have noticed, these Pi Tins are...

Pi Tin for the Raspberry Pi - Green Description: The Raspberry Pi is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect it...

Pi Tin for the Raspberry Pi - Green Description: The Raspberry Pi is everybody's favorite little computer, the last thing that you'd want is for something bad to happen to it. Why not protect it with one of these snazzy plastic enclosures? These cases protect the Raspberry Pi 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 the two sides together. As you may have noticed,...

"The Raspberry Pi is everybody’s favorite little computer, the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy plastic...

"The Raspberry Pi is everybody’s favorite little computer, the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy plastic enclosures? These cases protect the Raspberry Pi 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 the two sides together. As you may have noticed, these Pi Tins are actually an opaque...

PIC32MX 32-bit Microcontroller Description: The PIC32MX is a high performance 32-bit microcontroller. We bought these in the wrong package and don't have any use for them. Check out the datasheet...

PIC32MX 32-bit Microcontroller Description: The PIC32MX is a high performance 32-bit microcontroller. We bought these in the wrong package and don't have any use for them. Check out the datasheet below for what you can do with this IC. Features: High-Performance 32-bit RISC CPU: MIPS32® M4K® 32-bit core with 5-stage pipeline 80 MHz maximum frequency 1.56 DMIPS/MHz (Dhrystone 2.1) performance at zero Wait state Flash access Single-cycle multiply and high-performance divide unit...

This is the PICAXE-14M2 microcontroller chip. PICAXE is a neat entry-level microcontroller system that is relatively cheap to get started with. The chip is programmed with a simple serial connection...

This is the PICAXE-14M2 microcontroller chip. PICAXE is a neat entry-level microcontroller system that is relatively cheap to get started with. The chip is programmed with a simple serial connection and the BASIC development environment is free! PICAXE has some excellent educational applications and support, and is a great entryway into more complicated embedded systems. If you're looking for a place to start with microcontrollers, PICAXE is a great way to go! **Replaces: **COM-08351...

The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and 'tap'...

The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and 'tap' inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with machine pins that allows for horizontal mounting. We've seen...

The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and 'tap'...

The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and 'tap' inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solder pins that allows for vertical mounting. Features:...

The Pimoroni Explorer HAT Pro is a "shield" for the Raspberry Pi and provides you with the perfect prototyping sidekick for your Pi. The Explorer HAT Pro has a heap of useful input and output...

The Pimoroni Explorer HAT Pro is a "shield" for the Raspberry Pi and provides you with the perfect prototyping sidekick for your Pi. The Explorer HAT Pro has a heap of useful input and output options that will take your Raspberry Pi projects to the next level. This add-on board is great for driving motors, using analog sensors, interfacing with 5V systems and touch (even fruit-based!) interfaces. Each Pimoroni Explorer HAT Pro easily snaps on top of a Raspberry Pi equipped with a 40-pin (2x20)...

This motor/ servo shield is for Micro: bit, it provides a simple way to add motor driving capability to a micro: bit. The shield can drive 2 motors, 2 servos, and allow the motors to be driven with...

This motor/ servo shield is for Micro: bit, it provides a simple way to add motor driving capability to a micro: bit. The shield can drive 2 motors, 2 servos, and allow the motors to be driven with forward, reverse, stop control. It?s easy to add the motor to the shield, and there is an integrated edge connector slot for your Micro: bit to slot into easily. The shield is powered by the battery, and the battery charged by the USB port. It makes easier to achieve the function of your Micro: bit...

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the 'alarm' pin will go low. This...

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the 'alarm' pin will go low. This unit works great from 5 to 12V (datasheet shows 12V). You can also install a jumper wire past the 5V regulator on board to make this unit work at 3.3V. Sensor uses 1.6mA@3.3V. The alarm pin is an open collector meaning you will need a pull up resistor on the alarm pin. The open drain setup allows...

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 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...