Sunfounder

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US$27.99
This bundle includes an 8x8 RGB matrix module along with a LED matrix driver shield. With both plugged and powered from the Arduino, you are able to create different shapes in different colours!
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US$111.99
This is a great kit for you to learn about Arduino and the Internet of Things along with connecting many smart home devices within a smart network with the help of the included lessons provided by SunFounder. 
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US$125.99
Sloth:bit is a programmable biped robot powered by BBC micro:bit. With the Visual programming from micro:bit APP, sloth:bit can be very easy to program and play. Visual programming can be applied on pad or cellphone; also, when downloading Process, it can be complete by Bluetooth without cables.
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US$78.39
This is a magical tool kit with various components inside for learning, which will lead you to the world of Raspberry Pi quickly. It includes 17 lessons, each containing the circuit connection, principles, Fritzing images and code explanations for you to learn Raspberry Pi from scratch.
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US$64.39
This is a magical toolkit with various components inside for learning, which will lead you to the world of Arduino quickly. It includes 22 lessons, each containing the circuit connection, principles, Fritzing images and code explanations for you to learn Arduino from scratch. You will get to know several modules (LCD monitor, motor, potentiometer, etc.). In addition, detailed introduction of the components is included in the manual and you can try some extension experiments by yourself after studying this kit. Just get this powerful kit and start your wonderful journey in Arduino!
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US$13.85
This USB to TTL serial adapter module can work with different types of computer systems and drivers. The power LED, TXD LED and RXD LED on the module can help indicate whether it works normally. With the build-in signal voltage switch, when you switch to 5V, the power at TXD and RXD will be 5V; if you switch to 3.3V, then the power is 3.3V. Therefore, if your device can take only 3.3V input, this module is a great choice. A 500mA self-restore fuse is used for over current protection. The module can also be used for general serial applications.
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US$18.47
Phototransistor, or photo triode, is a photoelectric conversion component that senses the light intensity. The stronger light, the larger currents, and better conductivity of the triode. Based on this principle, we use it for light following. It works by converting the conductivity to voltage output, which means the stronger light shone on it, the smaller voltage output. Then convert the voltage into digital values by the A/D converter on the MCU. And we can tell the light intensity then by this value. The module can be used to sense the ambient luminance. The blue potentiometer is to adjust the sensitivity – you can change it to adapt to specific circumstances. There are two mounting holes of 3mm diameter on the module for easy installation on your robot. All in all, this Light Follower Module is a perfect choice for you to achieve a light following project!
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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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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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US$27.99
This Arduino Introductory Kit contains the basic components, all explained by an excellent 35 page color manual,  required to initiate you into the wonderful world of Arduino. This kit does not contain an Arduino UNO.
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