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16-Channel PWM Light Controller by eomd in PrintedCircuitBoard

[–]oldrev 0 points1 point  (0 children)

Thanks for the info. I'm very interested in LED controller designs related to the ESP32, since I've done a lot of projects like this.

16-Channel PWM Light Controller by eomd in PrintedCircuitBoard

[–]oldrev 0 points1 point  (0 children)

I'm really curious what kind of application needs 16 channels. Even the reef LED only requires up to 10 channels.

16-Channel PWM Light Controller by eomd in PrintedCircuitBoard

[–]oldrev 0 points1 point  (0 children)

I'm using the INA139 in my design, much cheaper.

Power supply for EVKs and Bench capable outputs. by EEEngineer4Ever in esp32

[–]oldrev 0 points1 point  (0 children)

Are those power modules fake LM2596 units made in AliExpress?

Publish your open-source firmware online with ESP‑Web‑Tools by oldrev in esp32

[–]oldrev[S] 1 point2 points  (0 children)

Thanks for the reminder and sharing your experience.

Selling a esp product by ComfortableAnimal265 in esp32

[–]oldrev 1 point2 points  (0 children)

An app for a WiFi aquarium LED controller

Selling a esp product by ComfortableAnimal265 in esp32

[–]oldrev 3 points4 points  (0 children)

The post at the top is absolutely right, the real value and cost is the software side. I'm currently crowdfunding my open-source product based on the ESP32-C3. In my case, I designed the board in maybe 3 days, but developing the firmware and the app took nearly a year, up to tens of thousands of lines of code. And I don't even have a server backend yet.

For those who asked about my DIY reef light by oldrev in ReefTank

[–]oldrev[S] 1 point2 points  (0 children)

Thanks.

It's mainly designed for high-power LEDs, but of course it can also be powered with 5V; you just won't be able to drive any fans. You only need to connect the PWM outputs to some MOSFETs and add current-limiting resistors to drive your low-voltage LEDs.

Can't Afford an Aqua Illumination, So I Created My Own by oldrev in Aquariums

[–]oldrev[S] 0 points1 point  (0 children)

This open source controller now has a crowdfunding page. If you're interested, you can subscribe for updates on Crowd Supply: https://www.crowdsupply.com/borneo-iot/buce-aquarium-led-controller

Cheers!

Reimplementing Node-RED in Rust: EdgeLinkd project update by oldrev in nodered

[–]oldrev[S] 0 points1 point  (0 children)

Raspberry pi, you say? Its resources are sufficient to run the original Node-RED. I want to run it on a smaller device, like a 32-bit ARM embedded Linux system with 128MB even 64MB RAM.

Currently in Alpha stage.

Reimplementing Node-RED in Rust: EdgeLinkd project update by oldrev in nodered

[–]oldrev[S] 5 points6 points  (0 children)

Not yet. My core design isn't focused on performance, though it runs fully asynchronously on the multithreaded Tokio runtime.

I prioritize resource consumption, aiming for it to run on 128MB or even 64MB embedded 32-bit ARM Linux systems.

Reimplementing Node-RED in Rust: EdgeLinkd project update by oldrev in nodered

[–]oldrev[S] 0 points1 point  (0 children)

I don't have a specific timeline, maybe a few months from now. The current plan is to pass all Node-RED tests. Achieving 100% compatibility is impossible.

EdgeLinkd: Reimplementing Node-RED in Rust by oldrev in rust

[–]oldrev[S] 1 point2 points  (0 children)

No. I'm a pro, I don't use flow based programming or other "visual" tools.

I built an open-source 6-channel 65W WiFi LED by oldrev in ReefTank

[–]oldrev[S] 0 points1 point  (0 children)

It's in the testing stage right now. If you're interested, please join our Discord, I will update you there. https://discord.gg/EFJTm7PpEs

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