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Curated by: Rick Altherr (17 videos)
My "how does that work" pile on my workbench has gotten too large. I make some room by tearing down the following: * Lawn Genie Irrigation Controller (https://www.lawngeniestore.com/Comergent/en/US/StaticContent/LawnGenie/product_manuals/Product%20Manuals/L70206P%20&%20L70209P.pdf) * Transbrake solenoid * Magicar car alarm (similar to http://www.magicar.com/en/?p=246) Datasheets and other related docs: * COP400 datasheet (http://datasheets.chipdb.org/National/COP400/NS_COP400_Family.pdf) * COP400 ROM dumping instructions (http://john.ccac.rwth-aachen.de:8000/patrick/COPSreader.htm) Post-recording notes: * LM339 is a quad comparator. I was thinking of a LM317 which is a voltage regulator. * COP421 is a 4-bit microcontroller. Nuvoton uses a derivative of the COP800 which is an 8-bit microcontroller. * COP421 is a mask ROM so not much to play with outside reading out the existing program.