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Dilshan R Jayakody’s Web Log

FlashProg – USB serial flash memory programmer

Electronics News Updates / By

FlashProg is USB base flash memory programmer to work with 3.3V serial flash memory devices. This programmer is specifically design to read, program and configure 25x series, serial flash memory devices which are commonly used to store BIOS in PC mainboards. Originally we design this project to read and program BIOS of Foxconn G31MXP mainboard. […]

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Dilshan R Jayakody’s Web Log

Modified Heathkit HD-1410 electronic keyer

Electronics News Updates / By

HD-1410 is quiet popular iambic keyer which is manufactured around 1970’s by Heathkit. The original HD-1410 keyer is designed using 5 commonly available 74LS series TTL ICs and 8 transistors. Other than iambic operation it has an option to adjust sidetone frequency and support for (external) single-paddle key unit. In this project we redesign original

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