RC Phase Shift Oscillator using op amp 741
While working on signal testing and basic R&D setups, I often need a simple sine wave…
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ESP32 Interfacing with DHT22 Humidity and Temperature Sensor
When I started working with ESP32 microcontroller board one of the first real use sensors I…
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Frequency to Period Converter
As we know frequency and period calculation can be done easily using simple formula T=1/f or…
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Simple Signal Amplifier with Gain Control Circuit
While working on signal testing and R&D activities on my work bench, I often felt need…
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Simple online LC Tank circuit Resonance Calculator
While working with RF circuits, oscillators, or even simple band pass filters, one basic calculation always…
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Simple way to Interface ESP32 and HC SR04 Ultrasonic Sensor
HC SR04 Ultrasonic Sensor is very popular among electronics makers and engineers, we can use it…
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API Mini Weather Station using ESP 01 and OLED display
Sometimes I wondered why we struggle so much with sensors like DHT11 or DHT22 on ESP…
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How to Code ESP 01 module using Arduino nano
It is important to understand few things before start to code ESP 01 or ESP 01s…
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ESP32 Wireless OLED Display
Most of the time when I’m working on display based project then i end up using…
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ATtiny85 based Mini Weather Station Display
Monitoring Temperature and Humidity around us is very helpful in may ways, We can now easily…
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