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Virtuabotix DS1302 Battery Backed RTC Module for the Arduino and Versalino connected to Arduino Mega

Virtuabotix DS1302 Real Time Clock Module Pin-out and coding guide

The DS1302 trickle-charge timekeeping chip contains a real-time clock/calendar and 31 bytes of static RAM.  It communicates with a microprocessor via a simple serial interface.  The Real Time Clock / Calendar provides Seconds, Minutes, Hours, Day, Date, Month, and Year information.  Only three wires are required to communicate with the Real Time Clock / RAM: […]

Virtuabotix PIR Motion Sensor Pinout and coding guide

PIR Pin-out and Getting Started Guide Making Adjustments Left Knob Controls the timing between alerts. Full left is 2 Seconds between pulses Full right is 300 Seconds between pulses Right Knob Controls the center of best detection. Full left is about 3M Center Detection Full right is about 7M Center Detection Guides & Datasheets   Varying R2 […]