DIY sensitive Arduino IB Metal Detector |
· The range is relatively large and for example a metal cover with a diameter of 15 cm is detected at a distance of more than 30 cm. Larger metal objects are detected at distances greater than 4050cm. We can detect small coin at distance of 15cm in the air. I use two lithium batteries for power supply which are connected in series ( volts) and this voltage is connected to the Vin input of ...
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