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BB-PAM8403-P 2 Channel Stereo 3W+3W (PAM8403) Audio Amplifier
US$4.61
This mini audio amplifier features the PM8403 amplifier chip integrated onboard. It can take signal from a 3.5mm headphone jack and output to two speakers. The audio signal input and output is stereo capable meaning that you get left and right channel that are separate. Use the potentiometer onboard that allows you to adjust the volume of the output.
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SF-ROLLARM Robotic Arm Kit 4-Axis for Arduino
US$110.59
The Rollarm Kit for Arduino is designed for mass hobbyists to learn robot arm control. With the open source MCU Arduino UNO and a servo expansion board, the robot arm is easy to use and full of fun. You can control its four axes by the 4 potentiometers on the handle, as well as make them move on your computer. In addition, it can memorize the movements it's made and repeat again and again, making it a great tool for repeated tasks.
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SF-ROLLPAW Standard Gripper Kit Rollpaw for Robotic Arm Rollarm DIY Robot Arduino Uno
US$30.79
The Rollpaw kit is a simple solution for projects that need small grippers. It is driven by two 9g SunFounder servos: one to control the jaws to open and close, and the other to control the rotating of the paw. When the jaws is fully stretched, the maximum distance is 60mm, which means it can grip an object with a 60-mm diameter. The joints of the two jaws are all connected with self-locking nuts, so that they would not fall off easily during the rotating and keep the paw "safe and sound". The Rollpaw is easy to assemble and use with the code provided.
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PI-CAMERA 720P 5MP Mobile Camera CMOS based for Raspberry Pi
US$34.94
It is a High Quality, Low lag raspberry pi 15 pin camera! Take videos or still pictures using the raspbian OS. Enter in sudo raspi-config and enable the camera, after rebooting type in terminal “raspivid -o vid.h264” for a 5 second video test. Super simple and easy to use, you will be amazed by the quality.
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ARD-616 Data Logger Shield for Arduino Uno Microcontrollers
US$12.09
This shield will work on any Arduino microcontroller that offer the same pinout as the Arduino Uno. Plug this card in as it allow you to store any data onto the SD card in either Fat16 or Fat32 format. This board has all the necessary conversion modules to ensure your 3.3v cards are protected. This board requires a CR1220 3V battery. The board also offers a portion for prototyping by soldering your circuits or sensors onto the board permanently.
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BB-PAM8403 3W Stereo Miniature Digital Power Amplifier Board Class D
US$2.30
This tiny circuit board allows users to amplify and output incoming audio signals from  any device to any 4-8 ohm impedance speakers. Solder the through hole pads to input left and right channel. Use the 5v pads to provide the amplifier power to operate and use the two outputs to acquire a stereo speaker configuration.
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KIT0003 EcoDuino - Arduino Automatic Watering System For Plants
US$92.50
EcoDuino is evolving. Now the EcoDuino has an enclosure. It is protected from water splashes, so it is safe to use beside your plants. The Ecoduino now sports an Atmega32U4 which eliminiates the requirement of an adapter. And sketches can simply uploaded via Mirco USB just like Arduino Leonado. Another improvment is that the DS18B20 sensor is now driectly supported. EcoDuino is designed by DFRobot to help you grow plants. By using a series of microcontrollers, sensors and actuators, the EcoDuino system can make your eeforts to grow plants much easier.
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NUCLEO-F446RE STM32 Nucleo-64 Development Board Supports Arduino and ST Morpho connectivity
US$45.45
The STM32 Nucleo board provides an affordable and flexible way for users to try out new ideas and build prototypes with any STM32 microcontroller line, choosing from the various combinations of performance, power consumption and features. The Arduino connectivity support and ST Morpho headers make it easy to expand the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields. The STM32 Nucleo board does not require any separate probe as it integrates the ST-LINK/V2-1 debugger and programmer.
Delivery within 2-3 weeks
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PI-COBBLER Pi Cobbler T-Shaped Breakout Board for Raspberry PI
US$6.65
This Breakout Board allows users to interface the Raspberry Pi 40 pin GPIOs to any breadboard. It also comes with markings on the side of the breakout board to help users identity the pin functions. This board is fully assembled and requires no soldering, simply connect into a breadboard and attach a 40 pin adapter cable from the PI to the breakout board. This product does not come with the 40 pin extension cable.
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PI-COBBLER-C 40 Pin GPIO Extension Cable for Raspberry Pi
US$3.85
This colorful cable allows users extend the 40 pin GPIOs on the Raspberry PI. We recommend using the product for the PI Cobbler breakout board. This product is also a perfect recommendation if you already have a nice case on your raspberry pi and do not want to open it repeatedly. 
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DRI0039 Quad DC Motor Driver Shield for Arduino
US$25.13
The latest quad motor driver shield for Arduino, compatible with 5V/3.3V Arduino controller, can control up to four DC motors with 8 pins at the same time. The shield supports PWM speed control and polarity control. The driver shield includes two TB6612FNG motor driver chips, compared with the traditional L298N chip, efficiency is improved and the component size also greatly reduced. The chip doesn't heat in to the rated range, and a single path maximum output 1.2A continuous current.
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DFR0219 Gravity: RS485 IO Expansion Shield for Arduino
US$25.13
Our IO expansion board is evolving, the RS485 IO Expansion Shield is now supporting Xbee and has colour coded pin header. It combines our popular Xbee shield (DFR0015) with IO expansion shield. It even supports SD card (DFR0071) which provides the ultimate functional expansion for Arduino so far. As its predecessor, it supports RS485, APC220, Bluetooth , Xbee communication, servo control.
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3231-ADA Adafruit LoRa Radio FeatherWing - RFM95W 900 MHz
US$34.92
This is the LoRa 9x @ 900 MHz radio version, which can be used for either 868MHz or 915MHz transmission/reception - the exact radio frequency is determined when you load the software since it can be tuned around dynamically. These are +20dBm LoRa packet radios that have a special radio modulation that is not compatible with the RFM69s but can go much much farther. They can easily go 2 Km line of sight using simple wire antennas, or up to 20Km with directional antennas and settings tweakings.
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PAM8610 10 Watt Stereo Audio Amplifier
US$7.69
This Board uses the PAM8610 Chip that acts as a stereo class-D audio amplifier which offers high quality audio with low EMI. The volume has a max gain of 32dB and will run from 7V to 15v. You have two through-hole ports for audio left and right channel output on the sides. The top ports are for the audio left and right channel input and the bottom you have two through holes for power and a switch to mute.
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ARD-RS-4A 5V/3A Four Channel Relay + Xbee Adapter Shield
US$20.01
It is a fully Arduino compatible relay board that offers 4 channels to be controlled. The maximum current input is around 1A for each channel at 250VAC or 3A for 120VAC. You also have wireless communication capability with the Xbee adapter board allowing you to add more functionality to your design. (xBee sold separately).
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