Electronics and STEM

This is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations)....

This is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. Never fear for accidental electrical discharge, either since since...

This is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations)....

This is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. Never fear for accidental electrical discharge, either since since...

"The ATmega128RFA1 is a portmanteau of sorts – two separate components combined to form one device; half microcontroller, half RF transciever. ATmega128RFA1 is an IEEE 802.15.4 compliant...

"The ATmega128RFA1 is a portmanteau of sorts – two separate components combined to form one device; half microcontroller, half RF transciever. ATmega128RFA1 is an IEEE 802.15.4 compliant single-chip, combining the industry- leading AVR microcontroller and best-in-class 2.4GHz RF transceiver providing industry’s highest RF performance for single-chip devices, with a link budget of 103.5dBm. The ATmega128RFA1 features Wake-on Radio, 32-bit MAC symbol counter, temperature sensor,...

    This is a ATmega328 IC in DIP package, pre-loaded with the Arduino Optiboot (Atmega328 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded...

    This is a ATmega328 IC in DIP package, pre-loaded with the Arduino Optiboot (Atmega328 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Arduino board.     To get this chip works, you will need an external 16MHz crystal or resonator, and a 5V power supply to create the minimum Arduino system. If you are not comfortable doing this, we recommend you purchasing the Crowduino board...

The name says it all on this one. An ATmega328P in DIP package, pre-loaded with the Arduino Optiboot (Uno 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project...

The name says it all on this one. An ATmega328P in DIP package, pre-loaded with the Arduino Optiboot (Uno 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Arduino board. To get this chip working with Arduino IDE, you will need an external 16MHz crystal or resonator, a 5V supply, and a serial connection. If you are not comfortable doing this, we recommend purchasing the Arduino Uno board that has all of these built into...

"This is a small voltage and current sense PCB. DC current is determined by measuring a voltage drop across a pair of parallel shunt resistors, then converted to a final analog voltage output by the...

"This is a small voltage and current sense PCB. DC current is determined by measuring a voltage drop across a pair of parallel shunt resistors, then converted to a final analog voltage output by the TI INA-169. Voltage sense is accomplished by scaling to 3.3V ADC range by a precision resistor divider. The PCB is supplied without leads or connectors. The pad sizes are large enough to accommodate 12 gauge heavy duty leads (see datasheet) but care must be exercised in soldering. Smaller gauge...

This is a right-angle, 24-pin Molex Mini-Fit Jr.™ connector, commonly used as the power supply connector on ATX motherboards. Two rows of twelve pins are broken out two rows of through-hole male...

This is a right-angle, 24-pin Molex Mini-Fit Jr.™ connector, commonly used as the power supply connector on ATX motherboards. Two rows of twelve pins are broken out two rows of through-hole male headers. See the datasheet below for pin spacing dimensions. Pair this connector with a standard computer power supply and you can source a number of different voltages (+3.3V, +5V, +12V, -12V, -5V) to your project.[ Documents: Dimensional Drawing ...

Low profile 3.5mm stereo audio jack. Documents: Audio 3.5mm Jack Datasheet ...

Low profile 3.5mm stereo audio jack. Documents: Audio 3.5mm Jack Datasheet

AVR ISP Shield - PTH Kit Description: Did you know that your Arduino can spawn other Arduinos? Don't worry, it can't do it autonomously so you won't wind up with a replicator...

AVR ISP Shield - PTH Kit Description: Did you know that your Arduino can spawn other Arduinos? Don't worry, it can't do it autonomously so you won't wind up with a replicator situation (-gate, not -Trek). The point is, the ArduinoISP sketch allows your Arduino to act as a programmer. You can use this awesome power to burn bootloaders onto ATMega chips, turning them into Arduino-compatible microcontrollers! In the past, this required a breadboard and a whole mess...

This ball caster kit from Pololu includes a black ABS housing, a 3/8" diameter metal ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets. The total height of this ball caster is 0.4"...

This ball caster kit from Pololu includes a black ABS housing, a 3/8" diameter metal ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets. The total height of this ball caster is 0.4" with no spacers. You can also adjust the height by adding the spacers. The ball caster can be mounted to a chassis by the two screw sets included in the kit. The distance between the two screw holes is 0.53".

A metal caster used for omni-directional robots. Omni-what? Imagine a robot with the dual-motor gear box. The robot can pivot in one spot, but it must also allow the other wheels on the drive train...

A metal caster used for omni-directional robots. Omni-what? Imagine a robot with the dual-motor gear box. The robot can pivot in one spot, but it must also allow the other wheels on the drive train to move or slide during a turn. This caster allows the robot to rotate and pivot in all directions - omni-directional - without the need for complex steering mechanisms. two complete casters Features: Can be configured for 6 different overall heights including 11, 16, 25, 27, 35, and 37mm Includes...

Bambu Support for ABS Enhance your ABS printing experience with our innovative support material. Designed for effortless printing and hassle-free removal, this material ensures a flawless support...

Bambu Support for ABS Enhance your ABS printing experience with our innovative support material. Designed for effortless printing and hassle-free removal, this material ensures a flawless support interface every time. Fully compatible with the AMS systems, it streamlines your ABS printing process from start to finish. Say goodbye to tedious support removal and enjoy a smoother, more efficient workflow! Easy Support Removal Specially formulated for ABS, our support material adheres precisely to...

These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables come in red/black pairs. Features: 36" long ...

These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables come in red/black pairs. Features: 36" long

These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables come in red/black pairs. Features: 36" Long ...

These are various leaded cables for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Cables come in red/black pairs. Features: 36" Long

    This Barometer Sensor has a Bosch BMP085 which is a high-accuracy chip to detect barometric pressure and temperature. It can widely measure pressure ranging from 300hPa to...

    This Barometer Sensor has a Bosch BMP085 which is a high-accuracy chip to detect barometric pressure and temperature. It can widely measure pressure ranging from 300hPa to 1100hPa, AKA +9000m to -500m above sea level, with a super high accuracy of 0.03hPa(0.25m) in ultra-high resolution mode. This Barometer sensor compatible with 3.3V and 5V, so it can be used in Arduinos without moditdfication. Features Wide pressure range Arduino/Crowduino compatible interface (3.3V...

The MPL115A1 is a digital barometer that uses MEMs technology to give accurate pressure measurements between 50kPa and 115kPa. We stock the SPI interface version of the sensor. Average current...

The MPL115A1 is a digital barometer that uses MEMs technology to give accurate pressure measurements between 50kPa and 115kPa. We stock the SPI interface version of the sensor. Average current consumption is 10µA at one measurement per second. The sensor outputs both temperature and pressure readings on the SPI bus. See page 3 of the datasheet for information on how to take readings from the pressure sensor. Breakout board coming soon! Features: Wide supply voltage range -40°C to 105°C maximum...

Do you fear that your power may not be "far reaching" enough? How would another 6' work for you? Okay, so it doesn't sound very dramatic, but sometimes an extra 6' of power cable is exactly what...

Do you fear that your power may not be "far reaching" enough? How would another 6' work for you? Okay, so it doesn't sound very dramatic, but sometimes an extra 6' of power cable is exactly what your project needs. Don't hack apart a nice clean barrel jack connection just because it won't reach, this male-to-female barrel jack extension cable will make the reach. This cable is terminated with 5.5x2.1mm barrel connectors, one male and one female, and fits most of our products that use a DC...

We use barrel jacks a lot around here and sometimes we need to pop a switch into the mix. That usually means hacking up a perfectly good barrel jack extension cable, but the whole point of using the...

We use barrel jacks a lot around here and sometimes we need to pop a switch into the mix. That usually means hacking up a perfectly good barrel jack extension cable, but the whole point of using the barrel jacks was so that we wouldn't have to hack things apart... Well, we found a solution: The Barrel Jack Power Switch. Okay, it's nothing fancy but it *is *really useful. Plug your power supply into one end and the other into your project and, just like that, you've got a power switch! The...

This is a basic 16 character by 2 line display with a snazzy black background with white characters. Utilizes the extremely common HD44780 parallel interface chipset (datasheet). Interface code is...

This is a basic 16 character by 2 line display with a snazzy black background with white characters. Utilizes the extremely common HD44780 parallel interface chipset (datasheet). Interface code is freely available. You will need ~11 general I/O pins to interface to this LCD screen. Includes white LED backlight. Get Started with the Basic Character LCD Guide Features: 3.15" x 1.425" Documents: Hookup Guide Datasheet mbed Example AVR Example Character Generator ...

"This is a basic 20 character by 4 line display. Utilizes the extremely common HD44780 parallel interface chipset (datasheet). Interface code is freely available. You will need ~11 general I/O pins...

"This is a basic 20 character by 4 line display. Utilizes the extremely common HD44780 parallel interface chipset (datasheet). Interface code is freely available. You will need ~11 general I/O pins to interface to this LCD screen. Includes LED backlight. Documents: Datasheet mbed Example AVR Example Character Generator Dimensions: 3.86 x 2.36 x 0.55"" ...

This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel jack connector. The connector mates with the barrel jack on the Arduino...

This is a simple 4 cell AA battery holder. The 5 inch cable is terminated with a standard 5.5x2.1mm, center positive barrel jack connector. The connector mates with the barrel jack on the Arduino (among a number of other products) allowing you to easily make your project battery powered. Note: the average voltage regulator has about 1V of dropout (but can vary greatly). This pack, with normal alkaline batteries, will output ~5.5V causing a normal 5V board to run at around 4 to 4.5V. This...

This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another...

This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 150mm, and the last 5mm of them are tinned. Features: 67.9 x 32.8 x 18.25mm

This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small Phillips head screw. Another...

This 2xAA battery holder puts a nice finishing touch on your battery powered project. This holder features a removable, sliding cover, which is secured with a small Phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 150mm and are terminated with a JST-XH (2.50mm pitch) connector. Note: This battery holder is NOT compatible with the micro:bit. The micro:bit, Arduino Pro, and other boards utilize a JST-PH connector, not...

    The 3 x AAA Battery Holder with Switch puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover which is secured with a...

    The 3 x AAA Battery Holder with Switch puts a nice finishing touch on your battery powered project. This holder features a removable sliding cover which is secured with a small phillips head screw. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 145mm, and the last 5mm of them are tinned. It is series connection.SpecificationBattery Type : AAABattery Qty : 3With Cover : YESWith Switch : YESHolder color :...

The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It's the next...

The Big Easy Driver, designed by Brian Schmalz, is a stepper motor driver board for bi-polar stepper motors up to a max 2A/phase. It is based on the Allegro A4988 stepper driver chip. It's the next version of the popular Easy Driver board. Each Big Easy Driver can drive up to a max of 2A per phase of a bi-polar stepper motor. It is a chopper microstepping driver which defaults to 16 step microstepping mode. It can take a maximum motor drive voltage of around 30V, and includes on-board 5V/3.3V...

This is a black insulated binding post. These binding posts do accept banana plugs, and are a great way to connect single-wire leads. The colored cap screws up and down, and is designed to clamp on...

This is a black insulated binding post. These binding posts do accept banana plugs, and are a great way to connect single-wire leads. The colored cap screws up and down, and is designed to clamp on the connecting wire. These binding posts are sold individually. We also carry a similar red binding post.

This is a red insulated binding post. These binding posts do accept banana plugs, and are a great way to connect single-wire leads. The colored cap screws up and down, and is designed to clamp on...

This is a red insulated binding post. These binding posts do accept banana plugs, and are a great way to connect single-wire leads. The colored cap screws up and down, and is designed to clamp on the connecting wire. These binding posts are sold individually. We also carry a similar black binding post.

The Binho Nova Multi-Protocol USB Host Adapter allows one to interface their computer directly to hardware circuits. This device is powered by the USB connection to the host PC and is also able to...

The Binho Nova Multi-Protocol USB Host Adapter allows one to interface their computer directly to hardware circuits. This device is powered by the USB connection to the host PC and is also able to provide downstream power to test circuits. The Binho Nova Multi-Protocol USB Host Adapter features 5 signal pins, one x 3v3 pin, one x VUSB pin, and three x GND pins on its 10pin wire harness. The wire harness terminates with a female 1.27mm 2x5 IDC connector. In IO Mode, the five signal pins can be...

This is a 10 pack of Biomedical Sensor Pads, disposable electrodes that can be used to measure EEG, ECG and EMG levels. these little pads are perfect for short-term monitoring of Neurofeedback and...

This is a 10 pack of Biomedical Sensor Pads, disposable electrodes that can be used to measure EEG, ECG and EMG levels. these little pads are perfect for short-term monitoring of Neurofeedback and Biofeedback purposes. They are to be used once and are very handy because of integrated, latex-free gel. Each pad adheres very well to the skin and the snap connector can be pushed on or removed from the electrode lead with no issue. Note: This product is NOT a medical device and is not intended to...

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. Features: 15mm high 19mm diameter ...

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 0.25" shaft with a set screw. Features: 15mm high 19mm diameter

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 6mm (+/- 0.3mm) shaft. The knob slides onto the potentiometer and...

Knobs are a great way to finish off your project and make it easier to adjust the level of your death ray. This knob mates to a 6mm (+/- 0.3mm) shaft. The knob slides onto the potentiometer and holds tightly with a strong friction fit. The main body of these knobs is metal with a plastic insert. The outside is knurled for precise adjustment. Features: 14mm high 24mm diameter Documents: Dimensional Drawing ...

Bluetooth & LiPo Add-On for Makey Makey Description: The MaKey MaKey is really cool, but wouldn't it be cooler if it wasn't tethered to your computer? There's only one way to find...

Bluetooth & LiPo Add-On for Makey Makey Description: The MaKey MaKey is really cool, but wouldn't it be cooler if it wasn't tethered to your computer? There's only one way to find out: Go wireless. Our Bluetooth & LiPo Add-On for MaKey MaKey frees your MaKey invention from the bonds of USB wired connection. Data is passed over a Bluetooth HID connection to your Bluetooth enabled computer which will recognize it as a Bluetooth wireless keyboard. Power is handled through a...

    The Elecrow Bluetooth Bee is designed for transparent wireless serial connection setup. It is a fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps modulation with...

    The Elecrow Bluetooth Bee is designed for transparent wireless serial connection setup. It is a fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) 3Mbps modulation with complete 2.4GHz radio transceiver. It uses CSR Bluecore4-external single chip Bluetooth system with CMOS technology and with AFH (Adaptive Frequency Hopping). It can be configured to Master, Slave or Loopback three different modes(HC-06 just be Master/Slave, coulud be customized), and it will...

Bluetooth Mate Description: The Bluetooth Mate is very similar to our BlueSMiRF modem, but it is designed specifically to be used with our Arduino Pros and LilyPad Arduinos. These modems work as...

Bluetooth Mate Description: The Bluetooth Mate is very similar to our BlueSMiRF modem, but it is designed specifically to be used with our Arduino Pros and LilyPad Arduinos. These modems work as a serial (RX/TX) pipe, and are a great wireless replacement for serial cables. Any serial stream from 9600 to 115200bps can be passed seamlessly from your computer to your target. We've tested these units successfully over open air at 350ft (106m)! Bluetooth Mate has the same pin out as the...

Bluetooth Module Breakout - Roving Networks (RN-41) Description: This is a simple breakout for the Roving Networks Bluetooth module. All pertinent pins are broken out and labeled. This new...

Bluetooth Module Breakout - Roving Networks (RN-41) Description: This is a simple breakout for the Roving Networks Bluetooth module. All pertinent pins are broken out and labeled. This new version's headers are unpopulated. Check below for appropriate headers. The module from Roving Networks is powerful, small, and very easy to use. This Bluetooth module is designed to replace serial cables. The Bluetooth stack is completely encapsulated. The end user just sees serial characters...

    The Bluetooth Shield integrates a Serial Bluetooth module. It can be easily used with Arduino /Crowduino for transparent wireless serial communication. You can choose two...

    The Bluetooth Shield integrates a Serial Bluetooth module. It can be easily used with Arduino /Crowduino for transparent wireless serial communication. You can choose two pins from Arduino D0 to D7 as Software Serial Ports to communicate with Bluetooth Shield (D0 and D1 is Hardware Serial Port). It also expand five analog IOs that you can use it to connect other devices. The Bluetooth Shield could be setting to Master or Slave by user.     Serial...