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LED Dimming & Toning System without Control Line
Demonstration of control line less LED dimming & toning system with R1580
RP122, High Ripple Rejection Demonstration
This is the demonstration video to show RP122's high ripple rejection.
Solar Powered Keyboard realized with R1800 and RP604
Using Ricoh's ICs, you can create solar powered keyboard.
Power Storing in Low Illuminance
You will be surprised to see R1800 is working under ultra low illuminance.