Home – KTechlab

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A cool looking emulator.  I'm going to give this a look tonight and see if I can start understanding how to build something with a PIC.

KTechlab provides a powerful environment for electronic circuits and microcontrollers. This includes simulation of a variety of components (logic, integrated, linear, nonlinear and reactive), simulation and debugging of PIC microcontrollers via gpsim, and its own closely-linked and complementary high level languages: FlowCode and Microbe.

It has also been designed to be as easy to use and unintrusive as possible; all components and FlowParts have context sensitive help, and simulating electronics is as simple as dragging components onto the work area and creating connectors that autoroute themselves between their pins. FlowCode allows users new to PICs to instantly create their own programs, while the electronic simulation allows stepping through a PIC's assembly program inside a circuit.



Future project idea. If for no other reason than to learn how IR remotes work.

This project describes an innovative multimedia thermometer of great visual impact.* The temperature is shown on an ordinary TV with crisp, full color graphics.
* To add more magic, pictures can be animated, and stereo CD-quality audio announcements can accompany every temperature change.
* Pictures can be varied according to the application.

CORE Team bike ride

espada.JPGWent out biking with a couple other guys who work at Rackspace on Sunday. We rode the Mission Trail in San Antonio from near Concepción to Espada. Total of 19 miles and I'm not nearly as sore as I thought I'd be this morning.

For those not familiar with the Mission Trail, it is mostly a wide paved sidewalk with modest hills and a gentle slope. The scenery is interesting and there are few cars to fight. We saw a number of birds, including a Snowy Egret, Comerant, Cardinals, Red Tailed Hawk, and a Vulture circling over us.

AT Commands for EVDO Cards

Just bought another EVDO card off ebay cheap and went looking for the AT commands so I could find the ESN.  I'm hoping that this PC-5220 is a bit more reliable than the PC-5740 that I'm using now.  The 5220 at least has an antenna connection and that should work better than my soldered hack on the current card.


Some cards won't require the trailing question mark. The signal strength varies from card to card also but 31 appears to be the max signal for any card. Some cards report integers 0-31 and other only report 0, 7, 15, 23, and 31. A strength of 7 or better should work but your speed and reliability will be affected.
Card's ESN: (in hex) AT+GSN
+GSN: 60223620

Firmware: AT+GMR
+GMR: S/W VER: p12203v0 .

Signal Strength: AT+CSQ?
+CSQ: 21, 99

Server's SID: AT+CSS?
+CSS: 2, B , 4182
Band Class: 0-unsupported, 1-800Mhz, 2-1900Mhz
Band: A-F System registered, Z not registered.
SID: Station ID (Tower?) Look up the SID here: http://www.mountainwireless.com/sid.htm
Profile:0 Enabled
Home Addr:
Primary HA:
Secondary HA:
Rev Tun:1

Win Prizes by Using Blingo Search


Blingo Search

This looks legit, and might be worth a try. Get in early and you should have a better chance of winning.  If you don't like the prize you can choose a visa gift card. 🙂

How Blingo works: 1. We pick a bunch of random winning times. 2. Search at the right time and you win. No registration required. 3. Then tell us where to send your prize.

DIY Live » DIY Archive » Electronics Tutorial

Greg links to a few good sites for anyone interested in learning about electronics.  This is great timing since I just had a question yesterday on another post about step by step directions.

I know that starting out in Electronics can be intimidating. There is a lot that you have to understand in order to really get a grasp of electronics. Sure, you can find some schematics, and put them together, but without understanding what resistor to put with a LED, and why you pick that resistor for that LED, then you can’t really do much except for just copy other people’s designs. I decided to find a few links for everyone to go to that will help them understand circuits, and circuit design.