Active Buzzer Alarm Sensor Beep Diy Kit Electronic PCB Board Module For Arduino Smart Car 3.3v-5V MCU IO Port With Dupont Line
Active Buzzer Alarm Sensor Beep Diy Kit Electronic PCB Board Module For Arduino Smart Car 3.3v-5V MCU IO Port With Dupont Line
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There are many people active and passive buzzer buzzer concept is not very clear, here to do a brief introduction, we want to be helpful for future use.
Note that the "source" does not mean power. But rather refers to the shock source.
Passive buzzer is characterized by:
A passive internal sources without shocks, so if the DC signal can not make it with a tweet. Must 2K ~ 5K square wave to drive it
2 sound frequency controllable, you can make a "more than a meter hair Suola Xi" effect.
3 In some special cases, you can reuse a control and LED mouth
Active buzzer is characterized by:
An active internal buzzer with shock source, so long as a power will be called
2 program easy to control, SCM can allow a high and low sounds, while passive buzzer can not.
One module description
A module using 9012 transistor drive
2 Operating voltage 3.3V-5V
6 with fixed bolt hole for easy installation
7 small plates PCB size: 3.3cm * 1.3cm
Two module interface specification (3-wire)
1 VCC external 3.3V-5V voltage (5v microcontroller and can be directly connected to 3.3v MCU)
External GND 2 GND
3 I / O external microcontroller IO port
Shipping list:
1PCS*An active buzzer module shown in a (test)
3PCS*20cm DuPont line
Purchasing & Delivery
Before you make your purchase, it’s helpful to know the measurements of the area you plan to place the furniture. You should also measure any doorways and hallways through which the furniture will pass to get to its final destination.Picking up at the store
Shopify Shop requires that all products are properly inspected BEFORE you take it home to insure there are no surprises. Our team is happy to open all packages and will assist in the inspection process. We will then reseal packages for safe transport. We encourage all customers to bring furniture pads or blankets to protect the items during transport as well as rope or tie downs. Shopify Shop will not be responsible for damage that occurs after leaving the store or during transit. It is the purchaser’s responsibility to make sure the correct items are picked up and in good condition.Delivery
Customers are able to pick the next available delivery day that best fits their schedule. However, to route stops as efficiently as possible, Shopify Shop will provide the time frame. Customers will not be able to choose a time. You will be notified in advance of your scheduled time frame. Please make sure that a responsible adult (18 years or older) will be home at that time.In preparation for your delivery, please remove existing furniture, pictures, mirrors, accessories, etc. to prevent damages. Also insure that the area where you would like your furniture placed is clear of any old furniture and any other items that may obstruct the passageway of the delivery team. Shopify Shop will deliver, assemble, and set-up your new furniture purchase and remove all packing materials from your home. Our delivery crews are not permitted to move your existing furniture or other household items. Delivery personnel will attempt to deliver the purchased items in a safe and controlled manner but will not attempt to place furniture if they feel it will result in damage to the product or your home. Delivery personnel are unable to remove doors, hoist furniture or carry furniture up more than 3 flights of stairs. An elevator must be available for deliveries to the 4th floor and above.
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