Space-Time Productions

The personal Computer Revolution started with the introduction of an 8 bit computer with switches for input and blinking LEDs for outp...

"Faster Erase Times" is the title of an article I wrote way back at the start of the computer revolution (1977 - publishd in '...

When it comes to attention, most people like paying as little as possible. That can be a very high price. A partial counter to that is...

Figuring out the switch debounce circuit was not the difficult part of the problem. That only took a few hours to solve. The most diffic...

Today I did a Google search on - Eliminate SPST Debounce Delay with an SR Latch - and my blog post didn't show up even after looking f...

The above image was obtained by doing a Google search on "zero delay debounce" a few days ago. The source page says delay is re...

If it is not a glitch, the switch is changing position. Corollary Dont confuse glitches with switches. Zero Debounce Dela...

I was looking into switch debounce problems for a project I was working on that required a foot switch. I solved that problem satisfactorily...

I have been using FreePCB to layout the boards I design. It is getting a little old and no longer has all the capabilities I desire. But it...

If you build a lot of prototype boards as I do, you know the problems of getting surface mount LEDs and diodes oriented properly for mountin...

I was looking around the net for this January 1975 Popular Electronics Magazine cover. The start of the Computer Revolution. I knew it the m...

For anyone doing RF work on Printed Circuit Boards, and with rise times on the order of 1 nS these days who isn't, the Saturn PCB Desig...

You can read more about it at Step-Down dc-dc Converter Eliminates Ferrite Cores at 50kHz Enabling Power Supply on Chip with One-Cycle Tran...

Since I last wrote about loading software into an LPC111x board I have changed the procedure some. I'm going to use our latest LPC1115...

I believe "C" is more a progenitor of this mess than JAVA. Engineering is the art of making what you want from what you can get...

Rockford Maker Space and I are getting together a class to teach soldering. Well, we needed something to solder. Some of the Makers suggest...

When you look at the design requirements of most ICs they commonly require a .1uF bypass capacitor, with one larger bypass capacitor (on the...

Ben Tongue of Blonder-Tongue Laboratories has written extensively on crystal radios and crystal detectors. You can find the articles here ....

I have the very initial schematic of the radio receiver done. You can see the first page here. Click on the image for a larger view) And...

While I'm working on a few projects, I thought it would be good to get something done. So I did. A little logic level tester. This one i...

I have a long time interest in amateur radio. This got me noodling around the 'net and I found the most interesting circuit. A SSB recei...

The first and most important part of making soldering surface mount parts easy is to design the PCB for hand soldering. The trick is to doub...

I'm in the process of designing a WWVB Frequency Receiver and Clock that can receive either the amplitude modulated time signals or the...

My latest project is an oldie but goodie. I'm reviving Bringing a Little Light To The World ™ . What is it? It is an emergency flashli...

Clyde has added some more FISHes to the repertoire. One for the NXP LPC1115 which has 8K of RAM and 64K of Flash. Plus updated versions (V1...

Clyde has updated FISH Forth to Version 1.5 . He has made some improvements. I'm just going to cover the major ones. There are now two v...

The TTL to USB board is a board that can interface to a USB computer port and deliver UART serial communications to any device that can acc...

The LPC1114LQFP Devl is a USB powered board that has both a parallel port and an I2C port on board. This board is similar to our LPC812 De...

So why are we "pushing" Forth on single chips? To get you prepared to do it on an array of 144 Forth Engines on a chip. Engine...

This is a Relative Humidity and Temperature Sensor that attaches to the I2C Bus. It has a relative humidity accuracy of 3% a precision of ...

This fun little board is mainly for those new to I2C. It gives you an easy way to write and test code that will control an I2C device and s...

The LPC812 MCU board in the picture plugs into, communicates with, and is powered by a USB port. It has 8 parallel port pins which can als...

There is a new release of FISH Forth software that now includes LPC812 support and LPC1114 support. FISH_NXP_M0_PubRel_v1.3.zip . I will be ...

Our resident software genius (ably assisted by his long distance friend Vic) has updated the FISH Forth for the LPC1114. You can find it her...

All the boards we have recently released TTL To RS-232 DB9 M&F TTL to USB TTL to I2C I2C-4SW-4LED 9Sept2012 were aimed at th...

Now that you have your I2C interface working you will need to test it out on something. I have a nice little board for that. The I2C-4SW-4L...

Since I'm using 5 volts as the standard I2C bus voltage, I need a way to translate from the 3.3 volts the MCU uses to the 5 volts the I2...