Simple Solar Charger Circuit Diagram

This is a simple solar charger circuit can be constructed using this circuit diagram .The nominal voltage of the solar charger circuit module is determined by the number of battery cells to be charged. Because of the typical voltage drop of 0.3 to 0.4 V across Schottky diode D1,...

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The Ultimate Value for Money Mid-ranger POCO X2 Review

There were some serious doubts about the future of the POCO brand after some of its top executives left the budding new venture in 2019. However, in 2020, Xiaomi’s brainchild has been reborn and it has brought something quite unexpected to the market – the POCO X2. Yes, for months,...

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How Drone Based LIDAR is Changing the Game in Various Industries

The term LiDAR stands for an acronym for Light Detection And Ranging, and most of the time Light Imaging, Detection, And Ranging, however, it had been originally a combination of the words light along with radar. LiDAR is really a property surveying system that measures the exact...

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Motorbike Alarm

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 wiring. Virtually, it suits all bikes as long as they have a battery. It doesn't drain out the battery though as the...

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Cheap Bicycle Alarm Schematics Circuit

The author wanted a very cheap and simple alarm for some of his possessions, such as his electrically assisted bicycle. This alarm is based on a cheap window alarm, which has a time-switch added to it with a 1-minute time-out. The output  pulse of the 555 replaces...

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Little Door Guard

If some intruder tries to open the door of your house, this circuit sounds an alarm to alert you against the attempted intrusion. The circuit (Fig. 1) uses readily available, low-cost components. For compactness, an alkaline 12V battery is used for powering the unit. Input...

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Simple Car Battery Voltage Monitor Circuit

This circuit is used to monitor the battery voltage to display a dual-colored LED status of the battery to. If the LED “green”battery voltage exceeds 11.9 volts. If the yellow LED, battery voltage 11.9 to 11.5 volts. If the LED is “red” If the battery voltage below 11.5 volts....

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