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It is an electronic construction of RC5 code remote control. The driver can learn and remember the code of a particular button on the remote control. The main element of the design is microcontroller Attiny13 from Atmel. The device uses resistors 470ohm and sensor SFH5110-36. Inspiration of this project was another design from: LINK. There, you can also find the schematic and load for the microcontroller.
The whole is closed in a light housing. Two cables: one for the supply and the second as an output for the desk lamp are protruding outside the housing. The circuit is protected with a safety fuse which is placed on the PCB. It protects both lamp and the control system. Relay of contact current 10A was applied as the control (switching on and off).
The PCB was made in thermal transfer method on chalky paper.
Attachment to the original thread include pictures and PCB in Eagle. The original thread also contains a video.
Link to original thread (useful attachment) - Zdalne sterowanie kodem RC5 by popak