Cheap spi i2c, Buy Quality xbee pro directly from China shield xbee Suppliers: DFRobot Gravity IO Expansion Shield V7.1, 3.3V/5V Support I2C/SPI/Xbee (pro)/Bluetooth APC220 interface compatible with Arduino
DFRobot 100% Genuine Gravity Series IO Expansion Shield V7.1, 3.3V/5V Support I2C/SPI/Xbee (Xbee pro)/Bluetooth APC220 interface compatible with Arduino for Different sensors, servos and Wireless Modules etc. Introduction IO Expansion shield is one of the market favourites. Fast robotics prototyping made affordable and simple thanks to this design. Soldering and wiring often becomes a problem when a bridged connection happens and components break. Increasing time a costs for projects. Often, without this solution and a soldering station, wire cripping tools or soldering station, robot prototyping or electronics DIY becomes a very long term project. The DFRobot Expansion shield introduced to the market the famous color code for sensors and actuators input and output. The 3 pin format for Signal, Voltage and Ground is extremely useful, specially if used altogether with our increasingly large range of modules, sensors and devices that just fit . Alternatively, the board includes power input for salvaged power supplies or laboratory power supplies. Very common Xbee
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