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Wave JT – LED chaser with Joule Thief

Wave JT is a multi-function LED chaser/scanner/sequencer. Wave JT incorporates Joule Thief to power the LEDs, so it operates on just a single AA battery.
Wave JT has over 16 sequence patterns, and speed can be adjusted by double/triple tapping the button. It’s the most compact yet versatile LED chaser.

Sequence patterns include many variation of the classic “Larson Scanner” from “Knight Rider”, random sparks, fade in/out, flashing, etc.

Even though there is only one button switch on Wave JT, you can control many things with it.



> Purchase Wave JT kit or PCB


Wave JT – Kit and PCB



Wave JT is a tiny LED sequencer or “Larson Scanner” on steroid. It has over 16 sequence patterns, and speed can be adjusted by double/triple tapping the button. It’s the most versatile LED chaser.

Unlike other LED chasers, Wave JT controls each LED in smooth 7 bit (128 levels) brightness levels. The brightness curve is gamma-corrected like Aurora series, so the fades are visually pleasing.

Not only Wave JT versatile, it’s also energy efficient. Wave JT runs on a single AA battery, and the battery lasts for days!

> See more pictures and video

Please view technical details and assembly instructions at instructables.

Wave JT is made with 100% through hole parts. No surface mount parts!

Kit Contents
8x 3mm or 5mm Super Bright LED of your choice
1x 4.7k ohm (R1)
1x 100k ohm (R2)
8x 39 ohm (R3-10)
1x 10pF Ceramic Capacitor (C1)
1x 0.1uF Ceramic Capacitor (C3)
1x 33uF 10V Electrolytic Capacitor (C2)
1x 47-100uH Axial Inductor (L1)
1x Schottky Diode (D1)
1x 5.1V 500mW Zener Diode (D2)
2x MPS2222A or equivalent NPN BJT (Q1-2)
1x PIC16F1823 or PIC16F1824
1x Tactile Switch (SW1)
2x Battery Clips

Note: As of Oct. 1, 2012, all Wave JT kits are shipping with preprogrammed PIC. You do not need a PIC programmer to assemble Wave JT kits!

*** Purchase Here ***