Collecting pollen and particulate matter from the air, to be analyzed later under a microscope.
DTMF quick dial box
Programmable phone dialer with 16 numbers memory, adjustable dialing speed, and other useful features.
Red Light for Astronomy Observing
PIC-controlled adjustable brightness red LED lamp for astronomy observing.
Controlling LCD display over IR link
Serial communication between two PIC microcontrollers via infrared link.
Multi-byte math library
PIC assembly library - multibyte addition, subtraction, multiplication, division, modulus, and logical operations.
LCD Screenshot Generator
Tool for creating LCD display screenshots. Different display sizes and colors are supported.
Seven-Segment LED image gallery
7-segment LED display images for project documentation, web-sites, etc.
Electronics shops in the San Francisco Bay Area
My favorite electronics shops, with focus on the South San Francisco Bay.
Crochet Sphere Pattern Generator
An online calculator for creating crochet sphere patterns (can also be used for knitting).
Generator for 3D crochet objects. Draw the object outline, press a button, get the crochet pattern.