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Anonymous users2024-01-24According to what you said, it should be a motion sensing sensor, and you also said that if you want him to stay on, you must send some in front of the device, and the automatically moving object will make it stay on. The easiest way is to communicate with the school, ask him to change the 10 seconds a little longer, and if you feel that you are not strong, you can ask your parents to do it for you and call the teacher.
If that doesn't work, try making a small moving object and hanging it on it to trigger the sensor repeatedly.
If you find it troublesome, simply remove the sensor and connect the wire directly (remember to cut off the power supply).
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Anonymous users2024-01-23The principle is infrared sensing, the sensor senses the infrared rays emitted by the moving human body and confirms that the delay relay (10 seconds) is engaged, and it is restored after 10 seconds.
There is a way. Adjust the time of the delay relay a little longer44.
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Anonymous users2024-01-22Make a paper windmill and tie it to it, and the wind will move as soon as it blows.
Hello, it's possible that it's broken, or it's possible that you're standing too far away to feel it.
Sensor repairs can be more expensive than buying a new one. Generally, the circuits are sealed and not easy to repair.
This is done through the principle of infrared reflection When the human hand or a certain part of the body is in the infrared region, the infrared rays emitted by the infrared emitting tube are reflected to the infrared receiving tube due to the blocking of the human hand or body, and are sent to the pulse solenoid valve through the signal processed by the microcomputer in the integrated circuit; >>>More
I didn't touch the infrared.
Find the manufacturer of the urine sensor If it is still within the warranty period, it can be repaired for free, if not, ask them to send someone or consult what the reason is.