Practice Soldering Learning Electronics Smart Car Soldering DIY Project Hot~
5,82 €
The height of the main photoresistor and LED under the front of the car should be moderate, the photoresistor and LED should be parallel, placed on the ground, about 0.2-0.4CM from the ground (you can see the picture if you are not clear), the sensitivity also mainly depends on the welding specification here To what extent.
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