Oiyagai 5pcs DC 3.3-5V Passive Low Level Trigger Buzzer Alarm Sound Module for Arduino

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Oiyagai 5pcs DC 3.3-5V Passive Low Level Trigger Buzzer Alarm Sound Module for Arduino

Regular Price: US$23.99

Special Price US$19.99

Availability: In stock

Supplier: Oiyagai

Category: Electronics Computers & Accessories Computer Accessories & Peripherals Computer Cable Adapters

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Oiyagai 5pcs DC 3.3-5V Passive Low Level Trigger Buzzer Alarm Sound Module for Arduino

Description:

100% Brand new and high quality
No oscillation source,need square wave(frequency 2K-5K ) to drive
Audino 9012 drive
Work Voltage:3.3-5V
Set bolt hole, easy to assemble
PCB Dimension:32mm x 13mm

Power supply voltage: DC4.5-6V (micro USB connector)
Operating Current: less than 70mA
Discharge voltage: 1.00V-15.00V 0.01V resolution
Termination voltage range: 0.5-11.0V
Supported by current: 3.000A 0.001A resolution

Pin definition:

VCC : 3.3-5V
GND : The Ground
I/O : I/O Interface of SCM

Instructions:

The first test should be fully charged battery.
Connect the battery to be tested positive to positive input, a negative input to the negative, can not be reversed (with load reversal may damage the circuit)! Load connected to the output of the positive and negative output, to work through the tester micro USB power supply (not available desktop or laptop USB powered), then the battery voltage.
Direct start test need only one press of the ""OK"" button, the tester can automatically develop an appropriate termination voltage of the battery full charge voltage, and will start flashing after the test three times. Need to develop artificial termination voltage only when the battery voltage display state by pressing ""+"" or ""-"" buttons to modify the termination voltage display beginning with P, behind the representative voltage resolution 0.1V, set up after pressing the ""OK ""start testing.
After the start of the test the tester will control the load of the electronic switch is turned on, the test data shows that the process will release capacity (Ah), current discharge current (A) and battery voltage (V) between the wheel was. When the battery voltage reaches the set cut-off voltage, load control switches off the tester display data stays in capacity (Ah) and above and the corresponding indicator flashes quickly together, now displays the actual capacity of the battery is discharging capacity, about the press ""OK"" to terminate flashing allows stable data display, press again ""OK"" button to return to the power-on state can just replace the battery test the next section.

Package Content : 5 x Passive Buzzer Alarm Module. Net Weight : 3g. Main Color : Blue. PCB Size : 3.1 x 1.3cm/1.2" x 0.51"(L*W); Materials : PCB. Product Name : Passive Buzzer Alarm Module; Voltage : DC 3.3-5V.