This tutorial shows how to use rotary encoder with STM32 Blue Pill board where the position of the rotary encoder is printed on a 4-digit seven-segment display module based on TM1637 driver. The STM32 Blue Pill development board is based […]
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This STM32 Blue Pill board project shows how to build a digital counter with TM1637 4-digit 7-segment display module. This counter automatically increments from 0 to 9999 with a predefined delay time between each two increments. The STM32 Blue Pill
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This electronic project shows how to generate a sine wave using Arduino board with the ability to control frequency and amplitude of the generated sinewave signal. A two potentiometer connected to the Arduino board are used to control the amplitude
A simple diode bridge rectifiers provide a fixed output voltage only and to obtain a controlled output voltage we need to replace the diodes by a phase-control thyristors, such as a Silicon Controlled Rectifier (SCR) semiconductor devices. The output voltage
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Isolation in electrical engineering involves separating one part of a circuit from another to avoid direct physical electrical connection, allowing signals and power to be transferred without a direct conductive path to prevent accidental contact, protect sensitive electronics, and ensure
Adding a display to an embedded system can bring several benefits, making the device more user-friendly and functional. Displays can be used for diagnostics by showcasing error messages, system logs, or sensor readings in real-time. This can aid in identifying
Adding a display to an embedded system can significantly enhance its functionality by providing visual feedback and an interactive user interface. This tutorial shows how to interface Arduino development board with ST7789 color TFT display. Abbreviations: TFT: Thin-Film Transistor. SPI:
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This Arduino tutorial shows how to interface the Uno board with ILI9341 TFT display. The ILI9341 TFT module contains a display controller with the same name: ILI9341. It’s a color display that uses SPI interface protocol and requires 4 or
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A zero crossing detector is an electronic circuit used to detect the exact moment when the voltage of an alternating current (AC) signal passes through zero volts. In other words, the zero-crossing detection circuit detects when an AC signal voltage
This post shows the design of a low cost precision analog isolation amplifier using HCNR201 (HCNR200) optocoupler where input signal is galvanically isolated from output signal. The HCNR201/HCNR200 can be used to isolate analog signals in a wide variety of
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