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  • Arduino Clock Based on PCF8563

    2016-02-18 01:30:22116

    In this tutorial, the Arduino displays the time and date on a LCD (optional) and in the Arduino IDE serial monitor window. A PCF8563 real time clock (R...

  • Gated Alarm(TLC556CN)

    2016-02-18 01:22:0474

    This article briefly describes the Gated Alarm (TLC556CN). This principle is easy to understand, but also very practical. Depth understanding of circui...

  • Provide Remote Alarm for Smoke Detector

    2016-02-18 01:21:5364

    Ionization-based smoke detectors are efficient and cheap, so they are often installed in the house, other outbuildings, and? the garage. The Locations ...

  • Motorbike Alarm Circuit diagram

    2016-02-18 01:15:2579

    This simple to build alarm can be fitted in bikes to protect them from being stolen. The tiny circuit can be hidden anywhere, without any complicated w...

  • Use 1N4001 MPS3702 and will signal the alarm circuit

    2016-02-18 01:08:2468

    This article is to introduce the use 1N4001 MPS3702 and will signal an alarm circuit. For your better understanding of the circuit, we first introduce ...

  • A No Doze Loudness Tone Alarm Circuit

    2016-02-18 00:59:2867

    A No Doze Loud Tone Alarm Circuit prevents you from falling asleep by beeping when your head starts to nod forward.perfect for truck drivers on long st...

  • A burglar alarm description

    2016-02-18 00:48:1561

    VN:F [1.6.9_936]This article is a burglar alarm is introduced. In order to you to master the principle of more efficient, we suggest that you combine t...

  • Luggage Security Alarm Schematic(BC337)

    2016-02-18 00:48:0471

    This article describes the Luggage Security Alarm Schematic (BC337). The principle is very simple, very practical. The circuit components can help you ...

  • Module Alarm Logic Schematic in the 300V Micro Family DC DC

    2016-02-18 00:41:0662

    The schematic below shows PC/SC module alarm logic of the 300V Micro Family DC DC Converter Module. It contains watchdog circuitry which monitors input...

  • Burglar Alarm Works for Both N.O and N.C Contacts (BC327)

    2016-02-18 00:26:4682

    This article describes a Burglar Alarm Works for Both NO and NC Contacts (BC327). The principle is very simple, very practical. The circuit components ...

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