leo.j.arnold
New Member
Hello, my boss has asked me to design a 'sales thermometer' to show how close we are to reaching our sales target. I came up with 3 designs, 2 quite basic ones and another one which used 100 LED's which would light up in sequence as we got closer to our target. Unfortunately my boss got very excited about the LED idea and now wants me to make it. I need help!! I've scoured Google for a solution but I can't seem to find what I am looking for. I got as far as linking decade counters together but this only seems to keep one LED lit at any one time.
What I need is a circuit which will count up through 100 LEDs. The input to advance the count by one would be a push button. But the most important thing is that the previous LED's remain illuminated, so if the count is '9' then 9 LED's are lit up and if the count is '76', 76 LEDs are lit etc.
Can anyone help me with this or point me in the right direction?? The deadline is in less that two weeks and I'm lost!!
Thanks in advance
Leo
What I need is a circuit which will count up through 100 LEDs. The input to advance the count by one would be a push button. But the most important thing is that the previous LED's remain illuminated, so if the count is '9' then 9 LED's are lit up and if the count is '76', 76 LEDs are lit etc.
Can anyone help me with this or point me in the right direction?? The deadline is in less that two weeks and I'm lost!!
Thanks in advance
Leo