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Small and lightweight module
If you want additional I/O lines or extra prototyping space and you do not need the LCD
A wireless module
Zumo reflectance sensor array schematic diagram
the v5 version uses newer MEMS sensors that provide some increases in accuracy (lower noise and zero-rate offsets)
Pololu 7.5V, 2.5A Step-Down Voltage Regulator D24V25F7 hub-plattformen Small and lightweight moduleThis small synchronous switching step down (or buck) regulator takes an input voltage of up to 38 V and efficiently reduces it to 3. 3 V. The board measures only 0. 7" 0. 7", but it allows a typical continuous output current of up to 2. 5 A. Typical efficiencies of 80% to 95% make this regulator well suited for powering moderate loads like sensors or small motors. High efficiencies are maintained at light loads by dynamically changing the switching
