Development Boards

US$12.05
This 4 channel relay shield for Arduino is ideal for easily controlling multiple devices that run higher than 5V (Motors, LED strips, etc). This relay specifically meets the Arduino signal requirements and allows for controlling devices on a higher voltage line. The relays connect simply by screw terminals and can be configured normally opened or normally closed.
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US$5.41
This is a full-featured motor shield that will be able to power many simple to medium-complexity projects. Specifications: 2 connections for 5V 'hobby' servos connected to the Arduino's high-resolution dedicated timer. 4 H-Bridges: L293D chipset provides 0.6A per bridge (1.2A peak) with thermal shutdown protection, internal kickback protection diodes. Can run motors on 4.5VDC to 25VDC.
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US$9.79
Looking for a simple small electronic compass for your project? This device offers x y and z readings for you to interface with Arduino. It only requires either 5vdc and can get you up and running quickly using i2c interface.
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US$13.99

Small generic AVR programmer encased in hard plastic, with a 10-pin cable included. Use USBasp in arduino to program your controller. Supports 3.3V and 5V (you have to open up the case to flip a switch). Support for AVRDude from version 5.2 onwards. Support for Linux, Mac OS X and Windows. Maximum write speed: 5KB/sec.

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US$11.89
Features: Supports any revision of Raspberry Pi (directly-pluggable). Provides your Pi with 16 touch keys. Features TONTEK TonTouch touch pad detector IC TTP229-LSF, supports up to 16 keys with adjustable sensitivity and built-in LDO. The system re-calibrates automatically when all keys are not detected touch more than about 4 seconds.
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US$12.59

Features: Supports any revision of Raspberry Pi (directly-pluggable). Driver : MAX7219. Matrix type : 8 × 8 common cathode LEDs. Color : red. Dimension : 64.3 × 35.0 × 26.5mm.

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US$26.59

Features: Raspberry Pi Camera, supports all revisions of the Pi. 5 megapixel OV5647 sensor in an adjustable-focus module. Camera specifications: CCD size : 1/4inch, Aperture (F) : 2.0, Focal Length : 6MM (adjustable), Diagonal : 75.7 degree, Sensor best resolution : 1080p. Dimension : 32mm × 32mm.

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US$67.13
The Platform Cable USB a USB compatible cable for in-circuit configuration and programming of all Xilinx devices. It is compatible with the original XILINX Platform Cable USB.
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US$44.79

Features: Supports Raspberry Pi A+/B+/2B. <Standard I/O> dual LED, joystick, buzzer, the basic components. <USB TO UART> CP2102, control the Pi through serial terminal. <Display> 0.96inch OLED, big world in the little screen. <RTC> DS3231, high precision, backup battery holder is also available. <AD/DA> PCF8591, 8-bit resolution, screw terminal IO interface. <GPIO Expansion> PCF8574, more GPIO, more possibility. <IR Control> LFN0038K, Raspberry Pi remote control comes true.

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US$5.59
Features: 8 channels bidirectional voltage translation between different logic level, translate between Ax and Bx automatically. 4 pairs of power supply interfaces, supports more situations. Use tantalum capacitors for power filter, provides more stability. Voltage level: 1.8V-6V. Dimension: 31.6mm x 25.4mm.
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US$6.29
RS232 communication board, SP3232 on board, 3V-5.5V, ESD enhanced, hardware flow control supported. The RS232 Board is used for establishing RS232 communication with devices powered from 3V - 5.5V. It contains SP3232 (RS-232 Transceiver) and DB9 connector used for connecting PC and MCU. The RS232 Board features ESD protection and supports hardware flow control.
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US$10.87
The PCF8591 AD DA Board features an 8-bit A/D Converter & D/A Converter PCF8591 with four analog inputs, one analog output and a serial I2C-bus interface.
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US$6.29

Features: PL2303TA onboard (the latest device, compatible with PL2303HXA). Supports windows XP/7/8/8.1/10/... 3 power mode : 5V output, 3.3V output, or powered by target board (3.3V-5V). 3 LEDs: TXD LED, RXD LED, POWER LED.

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US$13.93
Features: Official case for the Raspberry Pi from the Raspberry Pi Foundation. Removable Lid for easy access to the camera and display ports. Removable Side Panels with easy access to the GPIO port. Removable Top Frame. Designed with Pi HAT's in mind.
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US$7.69
Working on a project and you want to save space but have the same functionalities as an Uno? This shield allows you to work like a Arduino Uno, using the Arduino Nano microcontroller in the center. Plug additional shields to stack to or under by purchasing some headers to extend the device. Power with a 7 – 9v battery and let the regulator bring the voltage to a tolerable amount for the microcontroller to function.
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