Posts made by johnyradio

hello

i've purchased some hi-watt RGB LED's, similar to these:

https://www.ebay.com/itm/100W-100Watt-RGB-Red-Green-Blue-High-Power-LED-Light-Lamp-Panel-Chip-DIY/401361314623

i want to make an addressable string of 50 of these big guys , preferably using 4-wire protocol (with clock wire).

How? I don't mind if it's a chip or a whole module. Also don't mind if it uses some other protocol-- does not have to be a standard.

I cannot find a discreet APA102 or SK9822-- those chips seem only to be available on a board with an LED.

Could any of these work?
https://www.ebay.com/itm/PCA9685-16-Channel-PWM-Servo-RGB-LED-Driver-I2C-12-Bit-For-Arduino-BS1/262847153393

https://www.ebay.com/itm/RGB-LED-Light-Modulator-Programmable-PWM-Controller-for-Arduino/362113940268

https://www.ebay.com/itm/PCA9685-16-Channel-PWM-Servo-RGB-LED-Driver-I2C-12-bit-Part-for-Arduino-Hot/382170803578

https://www.ebay.com/itm/9-channels-RGB-bi-color-LED-driver-w-256-level-PWM-TM1809-arduino-RGB-LED-strip/121039360751

https://www.ebay.com/itm/10pc-Worldsemi-WS2801SO-3-Channel-RGB-Constant-Current-PWM-LED-Driver-WS2801/151850734726

thx

@zboblamont said in LED Strip: Heat vs. Waterproofing:

@johnywhy If the surface to which it is to be attached gets quite hot, perhaps insulation from that surface might be a solution?

Good suggestion!

@ThetaDev said in LED Strip: Heat vs. Waterproofing:

the ones with some clear and flexible gunk on the top side covering the LEDs can be heatsinked pretty easily by just sticking it on top of an aluminum profile

• How do you make or obtain the aluminum profile?
• Where/how do you make holes in the strip?

What would be your use case for the strips?

Bolted to things which might get warm (to the touch), in a warm environment, which might be exposed to rain.

The strip will not be underwater.

thx

Hi

Any tips on waterproofing an LED strip,
while allowing heat to escape?

Or, heat-sinking an already waterproofed strip,
or strip with waterproofed LED's?

thx