Ricky


Marsenne Primes — 2147483647

Introduction to Marsenne Primes Prime numbers are numbers that are only divisible by 1, and themselves of course.   Prime numbers (perfect numbers) are important for encryption, and very interesting to math enthusiasts who love to study their patterns.    Obviously,  with large numbers, prime numbers become more rare. An understanding Read More »

Keypad

Nest Thermostat E

Introduction to the Nest Thermostat E The Nest Thermostat E allows you to automate the heating and cooling systems in your home.    With this thermostat, you can view and control your heating and cooling from anywhere in the world!    I purchased this thermostat a few months ago, and Read More »

Nest thermostat E

Creating a VPS

Introduction to creating a VPS (Virtual Private Server) A VPS is handy for anyone who wishes to have their own server on the Internet.    In this document we will be creating a VPS.  This can be used to store data, serve web pages, create a VPN and much more!  Read More »

Linode Deploy

Transistor as an Amplifier

Introduction to using a transistor as an amplifier We generally use a transistor in two different ways.    We will use a transistor as a switch, or we will use a transistor as an amplifier.    There are also two main types of transistors:  NPN, and PNP.   The NPN transistor Read More »

Transistor High Speed

DSO150 Oscilloscope

Introduction to the DSO150 Oscilloscope The DSO150 Oscilloscope is a kit that you can purchase and assemble yourself.    There are several versions of this kit.   This particular kit is the surface mount version, and requires an external 9 volt power supply. The purpose of an oscilloscope is to monitor Read More »

Waveform

Arduino Bottom Feed Vape Mod 2

Introduction to Arduino Bottom Feed Vape Mod The purpose of this post is to simply show you how I built my Arduino Bottom Feed Vape Mod.    If you choose to implement any of this documentation in any way, please be responsible.   There are many dangers associated with using both the Lithium Read More »

Vape Mod BF

Schmitt Trigger 2

Introduction to the Schmitt Trigger Generally, We use the schmitt trigger to “clean up” a digital signal.    When digitial data is passed through a cable, you will have capacitance.   Furthermore, the longer the cable is, the more capacitance you will have.  We know that capacitance opposes a change in Read More »

Schmitt Trigger clean

MOSFET

Introduction to the MOSFET A MOSFET is a Metal Oxide Semiconductor Field Effect Transistor.   That might sound intimidating, but basically, a MOSFET is a switch.  There are two types of MOSFETS:  Enhancement mode, and depletion mode.   Unquestionably, the most common type of FET is the Enhancement mode.    We will Read More »

MOSFET held high

Transistors

Introduction to Transistors Transistors can act as a switch, or as an amplifier.    Using a transistor, we can control a large load with a small amount of current.  Micropressors, such as the Atmega328 are allowed a maximum of 40mA of current per output pin.   Loads such as a motor, Read More »

Motor Circuit Full

Inductance

Introduction to Inductance We provide inductance with “coils”.   You may also call them “Chokes”.    The unit of inductance is a “Henry”.  We know that capacitors oppose a change in voltage, but an inductor opposes a change in current flow.  We use inductors to filter noise in a circuit, for Read More »

Inductor