I’ll be gone from Saturday, 15 October 2011 to late Monday, 24 October 2011. There’s really no good way to get in touch with me in the interim.
I’m going to Maker Faire this weekend, May 21st & 22nd! Most of the time, I’ll be in or around the Maker Shed, explaining how vitally important it is to have more blinky LEDs in your life. I’ll also be making a couple of short presentations. Saturday at 11am I’ll be talking about the Breadboard Arduino project. Sunday at 4:30pm I’ll demonstrate the Tiny Wanderer robot. If you can, please come out and say hi!
I ran out of black jumper wire for the Breadboard Arduino kits. This was entirely a planning failure on my part. I started using blue wire. I hope you don’t mind too much.
In no particular order, here are my reasons (justifications?) for making the change. I didn’t want to hold orders until more black wire could be obtained. I didn’t want to continue buying Velleman hookup-wire sampler kits as this was not cost-effective. The blue wires are prettier, in my opinion. The red+blue motif matches the printed stripes on the power rails of the breadboards.
For those of you that are even more resistant to change than I am, let me reassure you: Blue Wires work the same as Black Wires. I promise.
You can build the Wee Blinky kit using incandescent bulbs instead of the supplied LEDs. Just omit D1, D2 (the LEDs) and R1 and R4 (the current-limiting resistors for the LEDs). Connect one lead of an incandescent bulb to the bottom lead of where the LED was supposed to go, then the other lead to the bottom lead of where the resistor was supposed to go. Repeat for the other side.
Here is a YouTube video using 12V incandescent bulbs:
It gives a very warm, retro look to the Wee Blinky! Let me know what you think.
The beautiful copper-on-black Lux Spectralis PCBs are all gone. Whimper. This actually caught me by surprise. Well, time to make some more.
I’ve re-designed the Lux Spectralis to make it simpler to assemble. I’ve omitted all the extra transistors and replaced the hard-to-find RGB LED with three individual, high-output LEDs. Now you can mix & match! How about a “Purple Haze” Lux (red, blue, UV)? Under-the-Sea Lux (green, cyan, blue)? Or a toasty Fire Lux (red, orange, yellow)?
I’ve got prototype PCBs coming in the mail and as soon as I’m happy with the new, simplified circuitry I’ll have a big batch of them built. This will take about a month, so please be patient!
If you’re heart is set on one of the older Lux Spectralis kits, a few are still available at the Maker Shed. Until the end of February 2011, buy one Lux Spectralis for $10 and get a second one for half price ($5)! Use code SHINY.
Yes, that’s what it’s called. I’m not too creative when it comes to naming products. I try to be descriptive; sometimes I succeed.
This is a minimalist USB-to-TTL adapter for use on a solderless breadboard. I designed this to use with my Breadboard Arduino class. It’s based on the FTDI USB UART chip, which is the same, identical chip used on “real” Arduinos, so it uses the same, identical drivers and works on most PCs. The only differences are that it is tiny, it plugs into a breadboard and lines up with the RESET, TXD and RXD pins of an ATmega328 chip (the Arduino main-brain) and it says “Dale Wheat’s USB to TTL” when you plug it in the first time. I make these here in the lab, by hand.
Originally I was only selling these USB-TTL adapters with the Breadboard Arduino kit, but due to popular demand, I am now selling it separately in my online store. You’re more than welcome, however, to make your own using the files provided above. The entire design is placed by me in the Public Domain. Go nuts.
There have been some USB-TTL failures in the field from the very first batch of 100. These are being investigated to try to improve their reliability. Every disappointing and frustrating failure is an opportunity for improvement. If you are having problems with your USB-TTL adapter, please feel free to contact me to see what might be the matter with it. I expect machines and tools to perform their function without a lot of fuss. I’d also like people to use these little gizmos to build interesting and fascinating things and not have to spend lots of time trouble-shooting the components.
See the correction on the MAKE magazine web site:
The text on page 65 concerning hooking up the right-side power connection is reversed. The photos are correct. Thanks to all the sharp-eyed readers out there that caught this for me!
I’m taking my loving, talented and overworked wife on a short road trip. We leave this morning and will return Sunday. Orders placed today, Friday, 28 January 2011 will ship Monday, 31 January 2011. If you placed an order yesterday, Thursday, 27 January 2011, your order is on its way to the Post Office, but you will not receive a shipment notification (from me) until Monday.
MAKE vol 25 features a little article I wrote about building a “Breadboard Arduino”. You can buy a kit that contains all the parts for $40. Click on the giant “Buy Now” button to order one today!
The kit includes everything you need: a solderless breadboard, jumper wires, a pre-programmed ATmega328P with pin label, USB adapter and basic components to perform the basic “software experiments” in the article. You need: a computer with a spare USB port that can run the free Arduino IDE software and a USB A to mini-B cable.
The first 99 buyers also get the “Li’l Larson LED Scanner Expansion Pack”, for free! OK, it’s just 5 red LEDs and some more jumper wires but you do get a really nice, custom laser-cut LED bezel for maximum Cylon (or K.I.T.T.) action!