Licky's Column

IR Sensor vs. Ultrasonic Sensor: What is the difference?

by Licky Li

IR Sensor vs. Ultrasonic Sensor: What is the difference?

What is the difference between IR sensors vs. Ultrasonic sensors? The biggest difference between IR sensor vs. ultrasonic sensors is the way in whi...

Build a great sounding audio amplifier (with bass boost) from the LM386

by Licky Li

Build a great sounding audio amplifier (with bass boost) from the LM386

LM386 BASICS The LM386 is quite a versatile chip. Only a couple resistors and capacitors are needed to make a working audio amplifier. The chip has...

What is RF Antenna? Definition, Design, Types, & Uses

by Licky Li

What is RF Antenna? Definition, Design, Types, & Uses

RF Antenna Definition An antenna is a specialized transducer that converts signals from an electronic transmission line to electromagnetic waves t...

How to use servos on the Raspberry Pi?

by Licky Li

How to use servos on the Raspberry Pi?

HOW SERVOS WORK To understand how servos work, take a look at the internal structure of a servo: Servo motor internal structure The diagram abo...

How to use a real-time clock module with the arduino?

by Licky Li

How to use a real-time clock module with the arduino?

WHY KEEP TRACK OF THE DATE AND TIME? Keeping track of the current date/time for an Arduino has many purposes. One use for it is for recording/log p...

Everything you need to know about flip flop circuits

by Licky Li

Everything you need to know about flip flop circuits

Electronic flip flop circuits are electronic circuits with two stable states used to store binary data. They are essential in data storage devices....

How to setup 9-axis sensors on the arduino ?

by Licky Li

How to setup 9-axis sensors on the arduino ?

9-axis sensors combine a magnetometer, accelerometer, and a gyroscope into a single sensor. The small size and low weight of these sensors make the...

How ro make a solar powered raspberry PI?

by Licky Li

How ro make a solar powered raspberry PI?

HOW TO CHOOSE A SOLAR PANEL To power a Raspberry Pi, the solar panel needs to output at least 5V. The wattage and current ratings of the solar pane...

OHM’S LAW, POWER AND ENERGY

by Licky Li

OHM’S LAW, POWER AND ENERGY

Energy is an object’s ability to do work. Even a block of wood on your table possesses energy. It has kinetic energy as it can do work as it falls,...

How RC circuits work?

by Licky Li

How RC circuits work?

HOW RC CIRCUITS WORK A capacitor can store energy, and a resistor placed in series with it will control the rate at which it charges or discharges....

Arduino DS3231 Real Time Clock (RTC) with Temperature Monitor

by Licky Li

Arduino DS3231 Real Time Clock (RTC) with Temperature Monitor

Components Required: To design Arduino & DS3231 Based Real Time Clock (RTC) & Temperature Monitor, we need the following components. Ardui...

How to setup an LCD on the Raspberry Pi ?

by Licky Li

How to setup an LCD on the Raspberry Pi ?

If you plan on using an LCD with your Raspberry Pi, there’s a good chance you’ll need to program it in Python at some point.  Python is probably th...