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The microcontroller is an AT90S8535-P in a DIP40 package. It is pin-compatible with other members of the AVR analog series, such as the ATMega8535 and ATMega16, although there are significant differences among them. It is advisable to consult the...
The post discusses a simple delay ON circuit that enables a connected load to be powered on with a predetermined delay after the power switch is activated. This circuit is applicable for any scenario that requires an initial delay...
The signal from the MSP430 PWM pin is not suitable for directly driving a speaker or amplifier. To improve the signal quality, it is advisable to process it through a low-pass filter, which smooths out the sharp edges of...
A VU meter from a SONY double tape deck, model number "SONY TC-W230," has been salvaged and is intended to be integrated into a computer tower case. The process begins with identifying the connections on the printed circuit board,...
The sound card for a PC typically includes a microphone input, speaker output, and occasionally line inputs and outputs. The microphone input is specifically designed for dynamic microphones, accommodating an impedance range of 200 to 600 ohms. An adaptation...
This is the circuit diagram of a USB-powered computer speaker, commonly known as multimedia speakers for PCs. The circuit features a single-chip design, operates on a low-voltage power supply, and is compatible with USB power from a computer. The USB-powered...
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