Humidity Sensor – Humidity to Frequency Output

Humidity Sensor – Humidity to Frequency Output

This sensor board provides frequency output as per relative humidity value. The project is based on a unique capacitive cell, this relative humidity sensor is designed for high volume, cost-sensitive applications such as office automation, automotive cabin air control, home...

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LED Fading Effect / LED Strobe using 555

LED Fading Effect / LED Strobe using 555

In general, generating an LED fade effect requires a microcontroller or another expensive circuit. We have built this low-cost LED fading board using an inexpensive 555 Timer. The 555 timer is used as an astable multivibrator, which generates low-frequency pulses, further, this pulse...

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60W LED Dimmer for 12V LEDs using 555 Timer

60W LED Dimmer for 12V LEDs using 555 Timer

The project shown here is a cheap 60W LED dimmer for 12V LEDs/12V LED strips. The circuit is based on the very popular, versatile, and low-cost 555 timer IC, NE555 IC generates a PWM signal and IRF540 MOSFET works as output driver for the LEDs. In this circuit the 555 IC used in an...

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