A while back, a friend of mine with a Suzuki Katana motorcycle sent me some plans he pulled off the Internet for circuits that would tell him what gear his motorcycle was in while he zipped down the highway. Since I’d helped him with some other electrical and electronic projects for his bike, he figured I could build one of these for him. I looked over the schematics he had found but wasn’t too impressed — most were for “strip gauges” which lit a different LED for each gear...
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