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Sand clock


SOFTWARE DEFINED RADIO

This Arduino shield is a remake of our famous SDR project published in 2007. Listen to all radio frequencies from 150kHz up to 30MHz.


D-WATT AMPLIFIER

This high-performance amplifier is built around a digital audio driver IC and operating in class-D.


LEGO Board for RPi

This LEGO control board for the Raspberry Pi has 4 motor-control outputs and 16 digital I/O channels.


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