HC-SR04 Ultrasonic Sensor 4pinModule main technical parameters:1.Working Voltage : 5V(DC)2.Static current: Less than 2mA.3.Output signal: Electric frequency signal, high level 5V, low level 0V.4.Sensor angle: Not more than 15 degrees.5.Detection distance: 2cm-450cm.6.High precision: Up to 0.3cm7.Input trigger signal: 10us TTL impulse8.Echo signal : output TTL PWL signalMode of connection:1.VCC2.trig(T)3.echo(R)4.GNDUse method:Supply module with 5V, the output will be 5V while obstacle in range, or 0V if not.The out pin of this module is used as a switching output when anti-theft module, and without the feet when ranging modules.Note : the module should be inserted in the circuit before been power, which avoid producing high level of misoperation;if not, then power again.Module Working Principle:1.Adopt IO trigger through supplying at least 10us sequence of high level signal.2.The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal.3.If there is signals returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receiving. Test distance = (high level time * sound velocity (340M/S) / 2.Note : This module is not suitable to connect with electric power, if you need to connect this module with electronic power,then let the GND terminal of this module to be connected first,otherwise, it will affect the normal work of the moduleOur advantages:
Factory
OEM supported
Short time delivery
Flexible payment
Aftersale service guarantee
Hardware&software technicians supported
Technician: We treat every piece of our product as our kid.Factory: well trained colleagues, over 200 people.
Sales team: Strong&united sales team Warehouse: Well arrangement makes work happy&effective.
Certificates FAQQ1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,
we can pack the goods in your branded boxes after getting your authorization letters.Q2. What is your terms of payment?
A: Full payment. Goods would be shipped in 3-5 work days after payment received, finally depends on quantities.Q3. What is your terms of delivery?
A: EXW.Q4. How about your delivery time?
A: Generally, goods would be shipped in 3-5 work days after payment received, finally depends on order quantities.Q5. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before deliveryFeel free to contact me if you have any question.