M mohiudin New Member Nov 30, 2016 #1 i need o to 999 hour seven segment based count up meter circuit and hex files for my generator. please any body help my to design its hardware and hex also.
i need o to 999 hour seven segment based count up meter circuit and hex files for my generator. please any body help my to design its hardware and hex also.
absf Active Member Nov 30, 2016 #2 You won't be able to make it cheaper than this one here... https://www.ebay.com/itm/12V-Timing...492440?hash=item5d6978f1d8:g:wvgAAOSw4shX9cA2 Allen
You won't be able to make it cheaper than this one here... https://www.ebay.com/itm/12V-Timing...492440?hash=item5d6978f1d8:g:wvgAAOSw4shX9cA2 Allen
atferrari Well-Known Member Most Helpful Member Nov 30, 2016 #4 absf said: You won't be able to make it cheaper than this one here... https://www.ebay.com/itm/12V-Timing...492440?hash=item5d6978f1d8:g:wvgAAOSw4shX9cA2 Allen Click to expand... The beauty of mass production! Really cheap!
absf said: You won't be able to make it cheaper than this one here... https://www.ebay.com/itm/12V-Timing...492440?hash=item5d6978f1d8:g:wvgAAOSw4shX9cA2 Allen Click to expand... The beauty of mass production! Really cheap!
absf Active Member Nov 30, 2016 #5 mohiudin said: oh sir i want to made it personaly Click to expand... There are 3 main tasks to do: 1. Make a timer that times out in one hour. 2. Make a counter that counts 0-999 3. Make outputs to the I/O pins and interface to 7-segment disp. 3a. Simple - use 21 IO pins and connect 3x 7 seg directly. 3b. Hard - use 10 IO pins and multiplex 3x 7 seg disp. Have you decided which MCU ? Allen
mohiudin said: oh sir i want to made it personaly Click to expand... There are 3 main tasks to do: 1. Make a timer that times out in one hour. 2. Make a counter that counts 0-999 3. Make outputs to the I/O pins and interface to 7-segment disp. 3a. Simple - use 21 IO pins and connect 3x 7 seg directly. 3b. Hard - use 10 IO pins and multiplex 3x 7 seg disp. Have you decided which MCU ? Allen