433 MHz Wireless temperature Monitor with I2C LCD

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Published on: April 6, 2014

Usinga 433 MHz transmitter and receiver ,  a Dallas DS18B20, and a 16×2 LCD with an  i2c / SPI character LCD backpack we can make a simple wireless temperature monitor. I’m not going to go into the construction of the hardware here since there is plenty of resources out there for that already. !Antennas! Antenna are a big deal![...]

Bread board power wires

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Published on: January 11, 2014

  This may seem a little trivial for a post, but I did it so I thought I would share. I took a regulated 12 volt power supply and added a regulated 5 volt and adjustable supplies to it. I used some old speaker terminals I had around for the facing connections on the power[...]

How to use a Triac to switch AC Voltage on and off (Simple)

Categories: Arduino, Electronics
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Published on: December 11, 2013

This is a simple explanation of how to use a triac and opto isolator to switch AC voltages on and off to a device (load). The opto isolator is used to give a physical separation between the low voltage and the high voltage circuits. The Arduino is optional. You can substitute the signal coming from[...]

Review: Vintronics LCD, RTC, Button Shield

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Published on: November 4, 2013

A good general purpose shield for incorporating an LCD, buttons and a real time clock (RTC) into any Arduino Uno or other compatible Arduino product.                       This neatly laid out  shield incorporates a 16×2 LCD shield with a white LED back light with stand offs[...]

How to properly detach/turn off a servo with arduino.

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Published on: March 18, 2013

Lets say that you have a project that uses a servo and runs on battery. Currently there is no way in code to turn off an analog servo. Some say to use the detach command. This doesn’t work. Analog servos aren’t designed to be powered and not have a pulse being sent to them. So,[...]

Use the FTDI Basic Breakout Board to program an Atmega328P-PU With Optiboot.

Categories: Arduino
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Published on: March 5, 2013

This is if you want to program your breadboard arduino and have an atmega328P-PU with the Optiboot bootloader already on the chip. The biggest issue I have found with breadboarding any chip is that they don’t always want to fully seat into the breadboard. In my experience, I find that pressing firmly down on the[...]

Tools to Clean Viruses From Your Computer… The Free Way!

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Published on: January 5, 2013

I will not outline each and every step in this long process of virus removal. However, I will outline the tools to required to rid your computer of these pesky and dangerous inconveniences. In most cases it really is as simple as running these tools to clean your computer. Disclaimer::::::::::::::::::::::::: All actions you take are[...]

Convert SSL Certificate .crt to PEM in any OS that runs WinRAR

Categories: Computer
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Published on: January 4, 2013

Most likely your certificate authority will send you your SSL certificate in a zip file containing one or more files with the file extension .crt. If you just downloaded the certificate unzipped then you will have to put into an archive using a utility like WinRAR. I wont go into archiving here, you can find[...]

Setup a Buffalo WHR-300HP/WHR-HP-G300N as a Wireless Bridge or Repeater

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Published on: December 19, 2012

  This video walk through can be used for either the WHR-HP-G300N or the WHR-300HP Buffalo routers. For setting up the Buffalo WHR-300HP as a Wireless Bridge follow the first video. For setting it up as a repeater watch both videos. Blog this! Bookmark on Delicious Digg this post Recommend on Facebook share via Reddit[...]

Arduino 3.7 Volt LiPo Battery Meter

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Published on: December 15, 2012

There is probably room for improvement here but this is what I have come up with for a 3.7 Volt LiPo battery meter. In the picture below I am charging my battery from a 5 volt source. All the charge controlling circuitry is built into the battery. I just wanted a way to monitor the[...]

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