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Add another 16 pins to your microcontroller using a MCP23017 port expander
and low-part-count sensing circuits
border-radius:8px} Show Text Clearly with I2C RGB Backlight LCD 16x2 Display Module for Arduino (Black Text)
DIY gadgets
070" PCB dimensions 18mm x 16
DFRobot 6xAA Holder w/ DC 2.1mm Plug - FIT0141 m3x16 Add another 16 pins toThis battery holder can hold 6 AA battery which is able to become a 7. 2 V rechargeable battery pack from NiMH NiCd cells or 9V battery pack from alkaline cells. It comes with a DC2. 1 Powerjack which can plug to Arduino directly. SPECIFICATION Cell Quantity: 6 Battery type: AA Storage temperature: 25'C (77F, RoomTemperature) Max Operate temperature: 80'C (176F) Dimensions: 93x57x15 mm(3. 66x2. 24x0. 59") Distance between mounting holes: 76mm(2. 99")
