Author Archives: Skye Sweeney

On watchdog timers

For many embedded software engineers, the watchdog timer is something that is designed in at the end. The thought is you just turn it on prior to shipping and “She’ll be right”. But this is a terrible travesty.

Posted in AVC, Processors | Leave a comment

XBee radios

I had gotten a pair of 1 mW XBee radios a while ago. I had wanted to use them to communicate with my robot while it was running. Normally I use an RS-232 cable in the lab, but in the … Continue reading

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IMU heater

I am using a Pololu 9-DOF module as the IMU for my robot. Its a very small device (1.0*0.8″) using MEMS bases gyro, accelerometer, and magnetometers. The trouble is these sensors have some drawbacks. The first is that MEMS sensors … Continue reading

Posted in AVC, Pololu 9DOF IMU | Leave a comment

It has been a while

Life got in the way. I hate it when it does that. Why can’t things like work, taxes, dishes, and doctors appointments just take care of themselves? Why must I be involved? But over the last few weeks I got … Continue reading

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Incredible optical encoder

I was cleaning up my lab at work when I stumbled upon a contraction from a research project that never went anywhere. I got in touch with the researchers and asked them how they wanted me to disposition the equipment. … Continue reading

Posted in Personal | 1 Comment

Sailboat start timer revisited

I have been stalled in my work on my robot. Current bug just seems insurmountable. I would come home and avoid the thing like the plague. So I decided to purposefully work on something else for a while.

Posted in PIC, Sailboat Race Timer | Leave a comment

Microscope (AmScope SM-3T)

My eyes are getting old. I can no longer focus on close items. For the last few years I used a magnification visorĀ for close up work. But in recent time, even thatĀ is not good enough. To get close enough to … Continue reading

Posted in AmScope | 3 Comments

Radio Shack is dead to me

I know it is not news, but Radio Shack is dead. My local store did not shutter when they went bankrupt. It has now been remodeled to bring in a cell phone store in a good 1/4 of the store. … Continue reading

Posted in Personal | 1 Comment

Saleae Logic-8

I just was given a Saleae Logic-8 logic analyzer probe as a birthday gift. I am in love with not only the giver (my wife), but the unit itself. Admittedly I have only had it for an hour, but everything … Continue reading

Posted in Product reviews | 2 Comments

First 3D printed part

My employeer has graciously allowed employees to use their top of the line 3D printer for personal projects subject to a bunch of conditions. My SUNDAR project falls within the guidlines for using minimal amount of materials and time. So … Continue reading

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