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This circuit conducts a rapid battery test without requiring an external power supply or costly moving-coil voltmeters. It offers two testing ranges: when switch SW1 is configured as indicated in the circuit diagram, it can evaluate batteries ranging from...
The alarm circuit operates as follows: When the power switch SW1 is turned on, the alarm system becomes active. If a magnet is brought close to the spring, the magnetic field attracts the spring, causing the dynamic and static...
This incredibly simple thermometer plugs on any free serial port. Does not make use of any programmable components as microcontrollers. It gives temperature readings accurate to 0.5°C with no calibration. It's cheap, so I've put one on any PC...
The common addition circuit is illustrated, with Figure (a) depicting the inverting adder circuit. The input-output relationship is expressed as Vo = -(Vi1 + Vi2). For phase addition, the circuit shown in Figure (b) can be utilized, with the...
A schematic for a 16-channel passive summing mixer has been developed based on information gathered from various forums and online resources. The 16-channel passive summing mixer is designed to combine multiple audio signals into a single output while maintaining the...
Atmel has joined NXP, ST, Luminary Micro (now TI), and Toshiba as a microcontroller vendor utilizing the ARM Cortex-M3 processor core. The company's initial Cortex-M3 aims to stand out by providing high-speed USB functionality, firmware protection, differential input ADC,...
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