Source Buzzer Module
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Air freight(10-14 days)
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Quik boat sea freight(20-25 days).
Air freight B2B express |
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| US Area | Unit Price | Date | Last-mile Delivery |
| Western United States (zip codes starting with 8 or 9) |
US$7.5/kg + US$2 | 10-15 days | UPS / FEDEX / GOFO |
| Central United States (zip codes starting with 4, 5, 6, or 7) |
US$8.5/kg + US$2 | ||
| Eastern United States (zip codes starting with 0, 1, 2, or 3) |
US$9.0/kg + US$2 | ||
Yun quit boat sea freight B2B express |
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| US Area | Unit Price | Date | Last-mile Delivery |
| Western United States (zip codes starting with 8 or 9) |
US$3.4/kg + US$2 | 15-20 days | UPS / FEDEX / GOFO |
| Central United States (zip codes starting with 4, 5, 6, or 7) |
US$3.6/kg + US$2 | ||
| Eastern United States (zip codes starting with 0, 1, 2, or 3) |
US$3.8/kg + US$2 | ||
Quit boat sea freight B2B express |
|||
| US Area | Unit Price | Date | Last-mile Delivery |
| Western United States (zip codes starting with 8 or 9) |
US$2.6/kg + US$2 | 20-25 days | UPS / FEDEX / GOFO |
| Central United States (zip codes starting with 4, 5, 6, or 7) |
US$2.8/kg + US$2 | ||
| Eastern United States (zip codes starting with 0, 1, 2, or 3) |
US$3.0/kg + US$2 | ||
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Many people are unclear about the concepts of active and passive buzzers. Here's a simple introduction to help you in the future.
Note that "active" here refers to the oscillation source, not the power supply.
The characteristics of a passive buzzer are:
1. Passive buzzers do not have an internal oscillation source, so they cannot be made to sound with a DC signal. They must be driven by a 2K~5K square wave.
2. The sound frequency is controllable, allowing for various sound effects.
3. In some special cases, they can share a control port with LEDs.
The characteristics of an active buzzer are:
1. Active buzzers have an internal oscillation source, so they sound as soon as they are powered on.
2. They are easy to program; a microcontroller can make them sound with a simple high or low level signal, which passive buzzers cannot do.
Module Description
The module is driven by a 9012 transistor.
Operating voltage: 3.3V-5V
PCB dimensions: 3.3cm * 1.3cm
Module Interface Description (3-wire system)
1. VCC: External 3.3V-5V voltage (can be directly connected to 5V and 3.3V microcontrollers)
2. GND: External GND
3. I/O: External microcontroller I/O port