parallel

20 SEGMENT JUMBO SIZE SPI BARGRAPH DISPLAY

20 SEGMENT JUMBO SIZE SPI BARGRAPH DISPLAY

Jumbo 20 Segment SPI (Serial) bar graph driver using 74HC595 serial to parallel converter IC and BC635 display driver transistor. This project is useful for application like Amusement machines, arcade gaming, voltage display, current display, pressure sensor display, temperature sensor display , process control equipment, battery condition monitor and many more. Each segment of display […]

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PIC programmers for parallel port

PIC programmers for parallel port

uni5_a.bmp – PCB of parallel programmer UNIPROG V-A uni5_as1.bmp – schematic diagram of G.Tait’s programmer with 4066 uni5_ao1.bmp – layout of components of G.Tait’s programmer with 4066 List of components: 1 x slot for ISO card (eight pins are enough) 1 x female Centronix connector 36pin 1 x 74LS06 (7406) or 74LS07 (7407) 1 x

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