<![CDATA[Can I use an Atom Echo to 'smarten' an LED string]]>I have an Oliver Bonas LED light string that has stopped working after only 2 Christmases. I also have a spare Atom Echo that I'm not using. I was wondering if I can use one of the pin outs from the Atom to control the LED string?

I have disassembled the control unit and the 3 AA (1.5v but series so 4.5v) batteries are wired straight to the LED +ve wire out so I thought the 5v output pin of the atom would work (with the right resistor) but I found a post that suggests that the 5v pinout is always powered. The same post said that the other output pins (G21 / G25) are only 3.3V which I don't think is enough power for the LEDs.

Any advice would be greatly apricated! Including any where I can get some starting code to make them fade in / out - assuming that's even possible.

Thanks.

]]>https://community.m5stack.com/topic/7211/can-i-use-an-atom-echo-to-smarten-an-led-stringRSS for NodeTue, 14 Apr 2026 00:08:09 GMTFri, 17 Jan 2025 16:48:44 GMT60<![CDATA[Reply to Can I use an Atom Echo to 'smarten' an LED string on Thu, 23 Jan 2025 19:46:34 GMT]]>@robski

Thanks, I'll have a look.

]]>https://community.m5stack.com/post/28006https://community.m5stack.com/post/28006Thu, 23 Jan 2025 19:46:34 GMT<![CDATA[Reply to Can I use an Atom Echo to 'smarten' an LED string on Thu, 23 Jan 2025 19:45:56 GMT]]>@kuriko

Multi-pole switch and chip. The chip also dims the lights but that's not essential.

Battery terminal > multi pole switch to different pins to a chip > LED

]]>https://community.m5stack.com/post/28005https://community.m5stack.com/post/28005Thu, 23 Jan 2025 19:45:56 GMT<![CDATA[Reply to Can I use an Atom Echo to 'smarten' an LED string on Mon, 20 Jan 2025 13:22:47 GMT]]>you would need something like PWM kit to do what you need ...

https://shop.m5stack.com/products/atomic-pwm-base-fdd8447l

]]>https://community.m5stack.com/post/27956https://community.m5stack.com/post/27956Mon, 20 Jan 2025 13:22:47 GMT<![CDATA[Reply to Can I use an Atom Echo to 'smarten' an LED string on Mon, 20 Jan 2025 10:02:48 GMT]]>@SilentSquirrel
How do you control your LED? Is it simply on/off or is there a driver chip?

]]>https://community.m5stack.com/post/27955https://community.m5stack.com/post/27955Mon, 20 Jan 2025 10:02:48 GMT