New! We have upgraded these strips from the old HL1606 chipset to the latest and greatest, the LPD8806 - a chip that has hi-speed full-color PWM built in! The old HL1606-based strips did not have PWM built in (they could only display 9 colors by default) the new ones can display 2 MILLION colors per pixel These LED strips are fun and glowy. There are 32 RGB LEDs per meter, and you can control each LED individually! Yes, that's right, this is the digitally-addressable type of LED strip. You can set the color of each LED's red, green and blue component with 7-bit PWM precision (so 21-bit color per pixel). The LEDs are controlled by shift-registers that are chained up down the strip so you can shorten or lengthen the strip. Only 2 digital output pins are required to send data down. The PWM is built into each chip so once you set the color you can stop talking to the strip and it will continue to PWM all the LEDs for you
We used to carry the
HL1606 chipset LED strip - this is the most common strip you'll find being made. The good news about the HL1606 is that it is low cost and well understood. The bad news is that the HL1606
doesn't have PWM which means you can only set the LEDs on or off. If you want any more colors than that you have to write to the strip by hand to PWM it - a big pain and requires a lot of CPU and doesn't look as good as it ought to! We wanted to upgrade the strip so we had the factory make us an upgraded version using the LPD8806. This chip has
built in 1.2 MHz high speed 7-bit PWM for each channel - that means it can do 21-bit color per LED (way more than the eye can easily discern). Once you set the brightness level for the LEDs, your microcontroller can go off and do other things, no need to continuously update it, or clock it. The best part is that compared to the WS2801 which can only run one LED at a time, this chip can drive 2 RGB LEDs which means the price stays the same as the older HL1606 strip, nice!
The strip is made of flexible PCB material, and comes with a waterproof sheathing. You can cut this stuff pretty easily with wire cutters, there are cut-lines every 2.5"/6.2cm (2 LEDs each). Solder to the 0.1" copper pads and you're good to go. Of course, you can also connect strips together to make them longer, just watch how much current you need!
You must use a 5V DC power supply to power these strips, do not use higher than 6V or you will destroy the entire strip They come in 5 meter reels with a 4-pin JST SM connector on each end. These strips are
sold by the meter! If you buy 5m at a time, you'll get full reels with two connectors. If you buy less than 5m, you'll get a single strip, but it will be a cut piece from a reel which may or may not have a connector on it.
To wire up these strips we suggest picking up some
JST SM plug and receptacle cables.
Technical specs (newer LPD8806 type):
- 16.5mm (0.65") wide, 4mm (0.16") thick with casing on, 62.5mm (2.45") long per segment
- 32 LEDs per meter
- Removable IP65 weatherproof casing
- Maximum 5V @ 120mA draw per 2.5" strip segment (all LEDs on full brightness)
- 5VDC power requirement (do not exceed 6VDC) - no polarity protection
- 2 common-anode RGB LEDs per segment, individually controllable
- LED wavelengths: 630nm/530nm/475nm
- Connector: 4-pin JST SM
Technical specs (older HL1606 type):
- 19mm (0.75") wide, 4.5mm (0.18") thick with casing on, 62.5mm (2.45") long per segment
- 32 LEDs per meter
- Removable IP65 weatherproof casing
- Maximum 5V @ 120mA draw per 2.5" strip segment (all LEDs on full brightness)
- 5VDC power requirement (do not exceed 6VDC) - no polarity protection
- 2 common-anode RGB LEDs per segment, individually controllable
- LED wavelengths: 630nm/530nm/475nm
- HL1606 LED controller chip with 'SPI'-like protocol (Chinese Datasheet) We also have a link to the english datasheet but since the pinout is incorrect we don't know how trustworthy it is. YMMV
We have a detailed tutorial showing wiring, power usage calculations, example code for usage, etc. Please check it out!