โมดูลเซนเซอร์ตรวจจับเสียง 3 pin LM393 Electret ไมโครโฟน DIY
Sound Sensor Module 3 pin Voice Sound Detection Sensor Amplifier LM393 Electret Microphone DIY Kit
First the size: length 32mm X width 17mm X height 15mm
Second the main chip: LM393 electret microphone
Third the working voltage: DC 4 ~ 6 volts
Fourth the characteristics:
1 with a signal output indication.
2. Single signal output.
3. The output valid signal is low.
4. When there is sound it outputs low level and the signal light is on.
5 can be used for voice control lights with light sensor to do sound and light alarm as well as sound control sound detection occasions.
6 the circuit board output switch!
Before purchase:
1.All the goods are ready stock we will arrange the shipment at once if we receive the order.
2.Please read the item description if you have any question do not hesitate to contact us.
3.Use the vouchers for more saving.
Shipment：
1.1-2 days to ship(except for the pro-order item)
2.If you have not received the item after 15 days shipmentPlease contact us.
After purchase:
1.If you are satisfied，please give us 5 stars praise.
2.Please contact us before you are going to give us bad review. We are helpful and will solve the problems.
if you receive a defect itemplease contact us at once with item picture or vide
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