Development Boards

US$125.93
If you want to start playing with sensors, this kit will be the perfect choice for you to get started. It comes with bundle of the most popular DFRobot sensors such as light, gas, sound, touch, accelerometer and lots more which gives unlimited possibility to sense the physical world on your embedded devices.
Delivery within 2-3 weeks
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US$4.13
The Raspberry Leaf is a piece of high quality glossy paper that's cut and drilled to to pop over the GPIO pins of your Raspberry Pi B+ and label them for easy connection.
Delivery within 2-3 weeks
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US$25.13
This allows to indipendently drive two DC motors, controlling both velocity and direction.
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US$34.93

Kit Includes: 5x Mini Photocell, 5x 10k Trimpot, 2x Gear Hobby Motor, 2x Generic Servo (Sub-Micro Size), 2x Bag of 25 10kOhm Resistor, 2x Bag of 25 330Ohm Resistor, 5x 30 Pack of Jumper Wires, 10x 1N4148 Diode, 1x Assorted LED (20 Pack) - (5 Red, 5 Blue, 5 Yellow, 5 Green). 1x Simon Buttons (4 Pack) - (1 Red, 1 Blue, 1 Yellow, 1 Green).

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US$39.13
The FTDI SmartBasic is a variation on our classic FTDI Basic board which allows you to connect a second device to the hardware serial port on an Arduino Pro, Pro Mini, or other USB-less board without compromising the ability to bootload code from the Arduino IDE.
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US$16.35
This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC.
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US$12.17
It's an add on prototyping Pi Cobbler from Adafruit specifically designed for the B+ and Pi 2 that you can break out all those tasty power, GPIO, I2C and SPI pins from the 40-pin header onto a solderless breadboard. This will make "cobbling together" prototypes with the Pi super easy.
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US$12.25
The T-Cobbler Plus is an add on prototyping board from Adafruit specifically designed for the B+, Pi 2 and Pi 3 that can break out all those tasty power, GPIO, I2C and SPI pins from the 40-pin header onto a solderless breadboard. This set will make "cobbling together" prototypes with the Pi super easy.
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US$19.25
A gyroscope is a type of sensor that can sense twisting and turning motions. Often paired with an accelerometer, you can use these to do 3D motion capture and inertial measurement.
Delivery within 2-3 weeks
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US$1.33
This 2x20 shrouded header has the same number and spacing of pins as the Raspberry Pi B+ 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.
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US$22.74
This breakout is capable of constantly monitoring the current your sensor is using, is able to add it up, and will give you a pulse each time a given amount of amp-hours have been used. When used effectively and if you start with a full battery, you’ll always know exactly how much of it is left!
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US$55.93
Configure your Arduino as a simple web server or let it get data from the worldwide web. Also available in kit version VEL-KA04.
Delivery within 2-3 weeks
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US$55.93
This is a general purpose INPUT - OUTPUT shield for Arduino. Also available in kit version VEL-KA05.
Delivery within 2-3 weeks
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US$40.25
Record your voice via a built-in microphone or a line input. Also available in kit version VEL-KA02.
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US$8.67
This adapter board is designed for adapting a 'classic' 2x10 (0.1"/2.54mm pitch) JTAG cable to a slimmer 2x5 (0.05"/1.27mm pitch) SWD Cable.  It's helpful for using products like theJTAGulator or SEGGER J-Link with tiny boards that use the 10-pin SWD programming connector.
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