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by the-kenny
948 days ago
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I have an unorthodox suggestion: get a bicycle rear radar like the Garmin Varia. They communicate via Bluetooth LE incoming cars, their count, and an average speed (in a set of ranges like 0-15km/h, 15-30km/h, …). Mount this with a usb cable somewhere, add an ESP32 or anything with Bluetooth somewhere else to accumulate. |
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