30pcs buzzer module

Buy 30pcs Active Buzzer Module 5V Digital Level Electronic Building Blocks for R479.98

Buy 30pcs RS232 Module with DB9 Connector RobotDyn for Arduino - products that work for R1,385.77

Feature: You can do a lot of interactive project, the most commonly used is for sound and light shows. Try to the experiment with digital sound. Buzzer module make the simplest sound. Just change the frequency, you can hear different sound (like alarm). It is used on your daily appliance, like PC, phones and so on. Technical details: Power voltage 3.3V~5V Signal input: digital (PWM) Package includes: 1 x Buzzer Module

Feature: You can do a lot of interactive project, the most commonly used is for sound and light shows. Try to the experiment with digital sound. Buzzer module make the simplest sound. Just change the frequency, you can hear different sound (like alarm). It is used on your daily appliance, like PC, phones and so on. Technical details: Power voltage 3.3V~5V Signal input: digital (PWM) Package includes: 10 x Buzzer Module

Feature: Active buzzer, no frequency signal, only need to offer signal to level can sound Suitable for button prompt, prompt warning and so on Specification: Size: 26 * 21mm Voltage: 5V Port: Digital level Platform: Arduino, microcontroller Package includes: 1 x Active Buzzer Module

Buy PIEZOELECTRIC BUZZER MODULE (EXT-OSC) KS ? / 180963 for R24.30

Buy 5pcs Buzzer Module 3.3V~5V PWM Digital Input Board... for R369.00

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BUZZER WITH INTERNAL OSCILLATOR / SELF OSCILLATING. 1.5-15VDC.

30Pcs Mini 1A Lithium Battery Charging Board Charger Module USB Interface Description: Charging method: linear charge 1% Charging current: 1A adjustable Charge accuracy: 1.5% Input voltage: 4.5V-5.5V Full charge voltage: 4.2V Charging indicator: Red charging green full charge Charging input interface: Mini USB Working temperature: -10°C to +85°C Reverse: NO Size: 25 x 19 x 10mm Note: Ampere meter can only be connected to 5V input end of the module. It is better that the charging current is 37% of the battery capacity. If you charge to the battery of 1000mAH, current of 400 is enough. The connection wire should not be too long. Make sure the connect point is good. If the input voltage is too high, like 5.2V, the current will be less than 1000mA, it is normal. It is protection function, Auto-substract the charging current to avoid burn damage to chip. Input reverse has no effect on the chip, but the output (battery terminals) reverse will burn chips. Applications: This module is used for single-or multi-section parallel lithium lithium rechargeable battery, charging from the USB port to take power. Package included: 30 x 1A lithium battery charging module