J. Mike Rollins (Sparky) [rollins@wfu.edu]
Hyperbola New
My Cats New
Kitty New
Mike is on
Green Cycle Design Group
  My Stuff  
  My Truck  
   AC Inverter
   Taz (My EV)
   PIC Switch
   LM3524 Motor Control
   SMP with 317
   Power Supply
   Function Gen
   Simulator: Zener
   Charge Controller
   IR Audio
   PWM with 555
   Entertainment Center
   GPS & WD-C2401P
Jacob's Ladder
My House
My Cars
My Cats New
My Jokes
Pi Poetry
Toro Mower
Speed of a Piston
Not a Pipe

Disclaimer:The following are my notes. As I am learning electronics, I am making my notes available. I hope they will be of benefit. However, I do not guarantee the accuracy of my work. I recommend the reader exercise critical thinking.

Here is my electronics page. In Jan 2008, I started working with circuits. This set of pages documents some of my work.

My To-Do List
  • Make a second version of the PIC Switch device using PIC32 chips.
    Status: Concept stage.
    • I now have a method to program the PIC32 chip using the PIC Kit 3.
    • Need to learn how to solder a SMD.
  • Finish the AC inverter for my truck.
    Status: Prototype is done!
    • Make PCB.
    • Determine optimal inductor design.
    • Explore dsPIC
  • Make a new device to control the startup sequence for my truck.
    Status: Prototype is done ... but it is overly complex.
    • Need to revise design.
  • Do something with RF and PIC.
    Status: Concept.
    • I need special inductor and capacitors for something called a Balun.
    • Need antenna.
    • Need level shifting chip for 3.3v to 5v for SPI Bus.
  • Make a new function generator allowing the user to select the voltage level and amplitude.
    Status: Initial schematic is almost done.
    • Thinking about a method to draw the wave form using LCD graphics.
  • Solar tracking system
    Status: Prototype and web page are done.
    • Trying to decide where to go from here.
  • Solar Charging for my truck.
    Status: Concept.
    • Explore solar tracking systems: Done.
    • Explore power conversion: Done.
    • Measure energy usage for my truck: Hmmm... new project.
  • Energy meter to measure how much power I use when driving my truck.
    Status: Concept.
    • Learn how to measure and record volts, amps and watts in real-time.
    • Learn about shunts and current sensing inductors.
  • Redo the thermostat for entertainment center.
    Status: Concept.
    • This was my first electronics project. I now know of many, many ways to improve on the design.
  • Make a home-made power controller for my truck.
  • Make an AM radio that can tune more than one station.
Items of interest: