Happy New Year.
As you were.
Happy New Year.
As you were.
Harbor Freight sells these cheap incandescent headlamps for like $3.00. For what they cost they are not half bad. Still, I’d prefer an LED over the incandescent bulb.
I had one of these Harbor Freight headlamps (HFHL) and a broken1 LED flashlight. The flashlight used a 1 watt LED mounted to an aluminium PCB. The flashlight’s driver still worked too so I used it and the LED to convert the HFHL.
A while ago the Wife Unit™ found some decorative metal numbers in a sale bin at the store. We both thought that they’d make great address numbers for the house and since they were dirt cheap we, bought them.
It didn’t take long for me to decided that I wanted to do something more than just hang them on the house. The numbers are raised, sort of reverse embossed, so the edges are exposed. My thought was to back-light the numbers for a cool nighttime effect.
Hannah is an Oregon company that offers pet adoption and care services to Oregon residents. I’d originally heard of them through their radio spots where they advertise what seems to be their main shtick – Total Lifetime Care.
According to the ads, the Total Lifetime Care program will provide you with all the care your pet needs for a small monthly fee. The video below sums up the program rather succinctly (if a bit unnervingly given the creepy voice over).
I needed to come up with a way to mount a 24″ TV in the ceiling. There was no way to mount the TV where it needed to go with more traditional/off the shelf mounts. Having thought on the issue a bit, going back an forth between ideas, I finally came up with a mount that used Kee Klamps.
We don’t have any issues with our Child Units™ (CU) playing video games. No fears of them turning into mass murderers or anything. However, the XBOX has a way of making our CU’s oblivious to the rest of the world. This creates all manner of issues, from the dogs not being let out, to chores not getting done at all or completely.
I started to think about a way to control access to the XBOX – the length of time it could be played, a way to forcefully stop game play at set intervals, and make it so that playing it was something you had to earn.
While the XBOX has “parental controls” they don’t work the way I’d like them too. You can set content restrictions and on-line restrictions but can only set a daily or weekly play limit. So, I could broadly limit the amount of playtime but I wanted more granular control and was looking for a way to stop game play and say “Let the dogs out!” or “Go finish the dishes!”
I almost immediately thought of a using a coin or token system as the access control. I took to Google, I was sure someone had done something like this already.
For this year’s Pinewood Derby race I made another remote controlled car for the Outlaw class. Unlike last year, this year I spent a little more time than the few hours before the race designing and building the car.
What I ended up with was a car powered by two micro DC motors, capable of multiple speeds, forward and reverse, controllable with an IR remote.
This year the youngest Child-Unit did the Cub Scout’s Pinewood derby again. Like last year he designed the car and I helped him with the electronics.
The fading LED was done by using a 555 timer. I believe this schematic is close to what we used. The only real difference is that R1 in that schematic was replaced by a trimmer pot so that the fade speed could be adjusted.
Power was provided by 3 CR2032 batteries connected in series for a total of 9 volts. The dome was just a scrap piece of plastic, with two metal pieces from a hard drive glued to the ends.
Unfortunately, this was one of the slowest cars at the race with a top speed of ~5.8 MPH.