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Smarter Life

7 Posts authored by: steveturner
steveturner

UnCoStat #5

Posted by steveturner Dec 22, 2013
In my last post I went through the steps for selecting and designing a linear regulator power supply. This post will go through the steps for a switching power supply. I have a lot of experience with linear regulators and only a little bit with switchers, but I’ve picked up a little knowledge.   Switching Power Supply: The Simple Method Step 1. Go to your favorite supplier (I’ve used Texas Instruments and Linear Technology, but there are many others). Step 2. Enter your values ...
I'm still struggling with the e-paper display. I am sure it is in my software; the display is changing, just not the way I want. I've set that aside for a bit and am focusing on the other parts of the design.   Voting is open for the Smarter Life Design Challenge. Please DON’T VOTE! Ok Don’t vote yet. I have been too busy to post much and I can see that I am way behind the other competitors. I have more time now and several posts will be coming in the next few days so I hope you ...
When I start a new project one of the first tasks is matching the needed IO to the resources available on the microprocessor. I create a spreadsheet to keep track of the connections and any changes as I move through the design steps. I've done a few PSoC projects now and thought I would share my spreadsheet. Perhaps others will find them helpful.   If you find any errors, please post them in the comments or send a message to me.   PSoC Family Resources The attachment named "PSoC_Por ...
Frustration and Delay It has been a frustrating few weeks with very little progress and time ticking away to the deadline. First, my computer crashed 4 days before I left for Europe. The new computer was mostly set up before my flight, but I got very little else done. I thought this trip would be an easy visit with lots of free time. When I got there they had an itinerary for me every day from 8:30 in the morning until 10 pm and I usually had a few hours of work to do in the hotel after that. I ...
I’ve been thinking about a portable prototyping box for a while when I saw this pencil box in the after school markdown bin at my local Staples, I think it was $4. It is the right size and I thought it might make a decent box to transport and protect my projects. The box is made of pressed fiber panels, it is very easy to drill, but I am concerned about its durability. The metal frame is thin aluminum, but should be OK for my use and it is lined with a polyester like fabric that was not ve ...
The UnCoStat (Unnecessarily Complex Thermostat) design process has officially kicked off! I received my PSoC4 Pioneer kit yesterday and ordered a bunch of parts today.   Concept and Block Diagram First I started with a block diagram to get a handle on all the different pieces. Then I want to see what is new or difficult and what needs to be done first. I think graphically, so this is what I sketched: I sort the pieces into priority. I make it a high priority if other things depend on it, i ...
Hello e14 community. My proposal for the design challenge is for a smart thermostat, but that sounds really boring, so I call it The UnCoStat for The Unnecessarily Complex Thermostat!. I have been thinking about the ideal thermostat since our 20 year old programmable thermostat broke last spring. We bought a new one, but neither my wife nor I am completely happy with it. I have looked at a lot of other thermostats but nothing is exactly what we want. Once I started contemplating what the ideal t ...