futz f&ts v.i. To tinker experimentally; to change something just to see what it does

I love my 2-wire LCDs and use them all the time, but since I started tinkering with the PIC10F322 chip that has only 4 I/O pins I decided to have a closer look at Roman Black's "Shift1" system. I could really use that one extra pin!

Shift1 uses a 74HC595 shift register with a couple RC circuits...

Continue Reading...

I got my PC boards from OSH Park. The top boards are just some SOT23 breakouts to make breadboarding easier. Soldering wire legs onto SOT23s is a little difficult, and they don't hold up well to plugging and unplugging.

The bottom boards are my PIC10F322 general purpose board. OSH Park shorted...

Continue Reading...

I was recently looking at Microchip's PIC10F322 microcontroller and thought it was a very capable little MCU for its price (and size). It has some really interesting peripherals onboard, like the Configurable Logic Cell (CLC), the Numerically Controlled Oscillator (NCO) Module and the...

Continue Reading...

13 Jun

New Site

I'm playing with a new flat-file CMS called Grav, and building a new site with it. I've had my fill of the giant database-driven CMSs like Joomla and WordPress. They're good for what they're good for, but for my dinky little site they're just massive bloatware overkill. I'm looking for...

Continue Reading...

In a recent Ebay China toy order I grabbed four HY-SRF05 ultrasonic rangefinder sensors to play with. Can't beat the price at $1.89 USD each with free shipping. They'd be dirt cheap at twice that price.

Here I'm controlling the SRF05 with a PIC18F2680 and displaying the results on my "Predko"...

Continue Reading...