I didn’t solve this circuit prototype the first time.     So I’m back at it again!    

  The easiest way to start with eTextiles is to place LEDs into your favorite dress. First – take a moment to understand the most basic of all circuits. Circuit Diagram showing the flow of electricity from the power source thru the resistor, into the LED, and then returning to the power source.   A hardwired LED circuit   How […]

  All the LEDs glowing in a row!    

  How to set up a breadboard circuit for ATtiny45 to blink five LEDs in sequence.     BREADBOARD CONNECTIONS ATtiny Pin 0 to LED positive (signal, white) ATtiny VCC (+) to power positive (+, red) ATtiny GND (-) to power negative (-, black) LED negative to resistor (breadboard connection) Resistor to negative power (-, black) repeat for Pin 1, […]

  Breadboards – whats going on behind that plastic mask?   Unfortunately most breadboards have a backing material so you can’t see the connection channels.   A side view close up showing the clips inside the breadboard which hold the jump wires in place gives you some idea of how the connection channels are laid out.   To really understand […]

  Whats on my workbench?     One of my favorite circuits! A Maxbotix Ultra Sonic Range Finder, ATtiny45, and a vibrating motor.  

  When I receive a new ‘conductive thread’ I first test for continuity and then resistance.     Set your multimeter to the continuity setting, I prefer multimeters with an audible setting. Then place the two probes along the material to be tested. In general, if the multimeter makes a beeping sound then the material demonstrates continuity and will work […]

    Current flows from the battery along the negative trace (black) thru a resistor and to the negative lead of the LED. The electrons jump the P-N Junction inside the lens cap emitting light and the depleted current returns to the battery along the positive trace (red). Other blog posts on LED’s LED Close Up  

  Copper foil tape!  For your prototyping and paper computing needs. Fold the tape for the best results.   If the tape is cut and then stuck together the continuity is impeded by the adhesive backing.   Instead fold the tape to maintain the highest continuity (least resistance).   Plan your circuit so that you can best avoid cutting the […]