This is a placeholder topic for “PiicoDev 3x RGB LED Module” comments.
Add dazzle to your project with three individually controllable RGB LEDs.
Read moreHi all, How many PiicoDev 3x RGB LED Modules can be daisy chained together.
Thanks Rob
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Hey there, @Rob308771, and welcome to the forum. Glad to have you here.
Technically, there’s a couple of different answers to this question.
To give you the easy and realistic answer: 5 or 6.
Slightly more complicated answer: 8. Using the binary switches, you can assign each board to one of the addresses 0x08->0x17. You might need to cut the I2C PullUp Resistors for that to work, however, as outlined below:
Hi Jane, Thankyou for the prompt reply. Most helpful Thankyou
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No worries, Rob. Have a lovely weekend.
This is an interesting case for the CE07910. Using them with a Jetson Orin Nano devkit they seem to take out the i2c bus. I have attached about 7 other types of piicodev modules that all work fine. The LED RGB modules (tried 4 different ones) always kills the i2c bus. I have tried cutting the pull up connections, still kills the bus. I can only think maybe the 100KHz speed is the issue but I need it for imus.
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Hey there, @Nigel164388,
It’s killing the I2C bus just by connecting it to the Jetson Nano?
When you say kills, I am presuming you mean that it completely stops any communications occurring with anything on the bus.
If the RGB Module is the only thing connected to the bus, I take it it’s still down and not working. What kind of error messages are you getting in the code? If you perform an I2C scan, is anything showing up?
Hi Core.
How can I disable the power LED? The guide says there’s jumper on the back but I don’t see one identified for this LED. There are 4 jumpers for I2C, PU (Pull up?), ID3 and ID4.
Cheers.
Mark
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Hi Mark,
Smart modules (like the RGB LED), let you control them in software.
There’s a heading in the Pico guide covering this API: https://core-electronics.com.au/guides/raspberry-pi-pico/piicodev-rgb-led-module-raspberry-pi-pico-guide/#pwrLED
All of the other PiicoDev modules have the LED solder jumper. Sorry about the mix up, could you please send a link to where the guide mentions it? We’ll fix that up.
Liam
Thanks Liam.
I was seconds away from posting that I’d found that code on github.
The jumper is described in the schematic.
Cheers.
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Hi Mark,
Already all over it! The GitHub code fleshes everything out a bit more.
Ahhh, it looks like a remenant from the template used - should be fixed soon!
Liam
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