| Power Circuit Diagram - Solar-powered sensor controls traffic | |
|---|---|
 | The Cap Drive pulse discharges this capacitance at a 700Hz rate, and a 100k? resistor charges it to 3V with a 240-µsec time constant. Larry K Baxter, Capsense, Lexington, MA, USA |
This Design Idea describes the TSP (traffic-sensor post), a more accurate, effective, inexpensive, and easy-to-install approach to monitoring traffic flow. | |
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