Development Boards

US$8.67
Design your own Pi HAT, attach custom circuitry and otherwise dress your Pi A+ or B+ with this jaunty prototyping HAT kit.
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US$1.74
This is the matching connector for our 40-pin GPIO Cable (1988-ADA). By soldering this onto perf board you can run a GPIO cable from your Pi A+ or B+ to the socket.
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US$124.42
This shield makes it easy to control two brushed DC motors with your Arduino or Arduino-compatible board. Its dual MC33926 motor drivers operate from 5 to 28 V and can deliver a continuous 3 A per motor. These great drivers also offer current-sense feedback and accept ultrasonic PWM frequencies for quieter operation. 
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US$5.39
With this set you will be provided with increased mechanical strength for stacking Blocks. Each Hardware Pack includes ten M2x3mm standoffs, six M2x3mm screws, and six M2 nuts. With this set of hardware you will be able to secure three Blocks to one Intel® Edison.
Delivery within 2-3 weeks
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US$24.20
This is the SparkFun USB to Serial Breakout for the FT232RL, a small board with a built in USB to serial UART interface. This little breakout is built around the FT232RL IC from FTDI, with an internal oscillator, EEPROM, and a 28-pin SSOP package this is a serious little chip.
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US$6.92
This cable will let you swap out the stock 150mm long flex cable from a Raspberry Pi Camera (either 'classic' or 'NoIR' type) for a different size.
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US$10.42
This cable will let you swap out the stock 150mm long flex cable from a Raspberry Pi Camera (either 'classic' or 'NoIR' type) for a different size.
Delivery within 2-3 weeks
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US$27.65
This is a USB to TTL serial cable, with a FTDI FT232RL usb/serial chip embedded in the head. It has a 6-pin socket at the end with 5V power and ground, as well as RX, TX, RTS and CTS at 3V logic levels.
Delivery within 2-3 weeks
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US$69.93
The SparkFun Mini Inventor’s Kit (SMIK) is a great way to get started with programming and hardware interaction with the Arduino programming language. This mini SIK includes everything you need to complete 8 circuits that will teach you how to blink an LED, read sensors, drive servos, and more. You don’t need any previous programming or electronics experience to use this kit.
Delivery within 2-3 weeks
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US$22.95
This chip from FTDI is similar to their USB to serial converter chips but adds a 'multi-protocol synchronous serial engine' which allows it to speak many common protocols like SPI, I2C, serial UART, JTAG, and more!
Delivery within 2-3 weeks
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US$109.13

This kit teaches you how to connect and read sensors through a series of short projects using the popular Arduino or Raspberry Pi microcontrollers. In the included fully-illustrated book you will gain hands-on experience with some of the most useful and instructive sensors available. Note that Arduino and Raspberry Pi are not included in this kit.

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US$4.38
Connect your own PCB to a Raspberry Pi B+ and stack on top with this normal-height female header with extra long pins.
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US$2.63
Connect your own PCB to a Raspberry Pi B+ with this normal-height female header.
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US$159.92
This makes it easy to control two high-power DC motors with your Arduino or Arduino-compatible board. Its dual robust VNH5019 motor drivers operate from 5.5 to 24 V and can deliver a continuous 12 A (30 A peak) per motor, or a continuous 24 A (60 A peak) to a single motor connected to both channels.
Delivery within 2-3 weeks
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US$22.33
The module integrates MCP3432 A/D converter chip. The module can provide analog input function for Raspberry Pi and provide high accuracy analog input for Arduino.
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