Display Bar
How I can use a bar display driver LM3914 to respond with precision from a tachometer or speedometer output of GM?
I'm trying to build a circuit made up of 30 LEDS [10 3x LED Display Bar] to respond in shades similar to a VU meter, but it is my tachometer and the speedometer to monitor. I'd love an explanation or a link to the help information on how diagrams and / or tutorials.
Week Last, we took some friends to a new restaurant, and noticed that the waiter who took our order carried a spoon in his shirt pocket. It seemed a little strange, but ignored. However, when the waiter brought water and cooking utensils, I noticed he also had a spoon in his shirt pocket, then looked around and saw that all the staff had spoons in their pockets. When the waiter came back to serve the soup I asked, "Why the spoon?" "Well, explained, "restaurant owners hired Anderson Consulting, experts in efficiency, in order to renew all our processes. After several months of research statistics, they concluded that customers drop 73.84 percent of its spoons more often than any other instrument. This represents a drop frequency about 3 tablespoons per table per hour. If our staff is ready to deal with that contingency, we can reduce the number of trips back to the kitchen and store 15 hours-man per shift. "As luck would have it I dropped my spoon and he was able to replace it with the spoon repuesto." I'll get another spoon next time I go to the kitchen instead of making an extra trip to get it right now. "I was impressed enough. The waiter served our main course, and I kept looking around. Then I has had a very thin string hanging out of the waiter's fly. Looking around, I realized that all the waiters had the same string hanging from their flies. My Curiosity got the better of me and before he left I asked the waiter: "Excuse me, but can you tell me why you have that string right there? "" Oh, indeed! "He replied, lowering his voice." Not everyone is as observant as you. That consulting firm I mentioned also found that we saves time in the bathroom. "" How so? "" Look, "he continued, by tying this string to the tip of you know what. . ., We can remove the urinal without touching it and eliminate the need to wash your hands>, shortening the time spent in the bathroom by 76.39 percent. "" Well, that makes sense, but … if the string helps you out, how you put it back in? "" Well, "she whispered, lowering his voice again:" I do not know others, but I use the spoon. "
MEMS accelerometer with LED bar display for car
