Connect multipe ESP

[jack1999]

@djtomybcn

Hello, I am planning to use WLED in a Carnival Parade. And I would like to be able to synchronize all the lights.

I don’t know if there is a possibility of making some type of network in which all the ESPs are connected to each other (we are talking about about 80) and works like a zigbee where the devices are used to communicate with more distant devices.

Sorry if I’m saying something crazy. But I think it could be a very fun project.

Thanks in advance!

That sounds like an exciting project! Synchronizing 80 ESP devices in a carnival parade is definitely a challenge, but it’s possible with some planning. Here are a few approaches you could consider:

1. Wi-Fi Mesh Networking

• ESP-MESH: You could set up a mesh network using ESP-MESH, which allows multiple ESP32 devices to communicate with each other over Wi-Fi. This would enable your devices to relay messages between one another, extending the range and reliability of the network.
• Pros: Scalable and can cover larger areas.
• Cons: Might require more setup and configuration to manage the mesh.

2. ART-NET or sACN

• ART-NET: This protocol is designed for lighting control and can work over Wi-Fi. You could set one ESP32 as a master controller and the others as slaves. This way, you can send commands from the master to synchronize the lights.
• sACN: Similar to ART-NET, sACN is another protocol that supports DMX over Ethernet.
• Pros: Well-supported in lighting applications and can handle multiple devices.
• Cons: May require additional libraries and setup.

3. Bluetooth or BLE

• If you’re looking for a more localized solution, you could explore Bluetooth Low Energy (BLE). Some ESP32 libraries support BLE mesh networking, allowing devices to communicate without Wi-Fi.
• Pros: Good for short distances and avoids Wi-Fi interference.
• Cons: Limited range compared to Wi-Fi.

4. Broadcasting Synchronization Commands

• You could use a single device to broadcast synchronization commands (like color changes or effects) to all others using UDP or multicast messages. This approach doesn’t require a mesh but can be effective if the devices are within range of the broadcast.
• Pros: Simple to implement.
• Cons: Range limitations and potential packet loss.

Implementation Steps

1. Choose a Communication Protocol: Decide which of the above methods fits your needs best.
2. Set Up One Master Controller: This device will send out synchronization commands to the others.
3. Test in Small Groups: Before the event, test with a smaller number of devices to ensure synchronization works.
4. Deploy and Test in the Field: On the day of the parade, set up your devices and do a final test to ensure everything works as expected.

Additional Considerations

• Power Supply: Ensure that all devices have a reliable power supply, as long parade durations may drain batteries quickly.
• Signal Interference: Consider potential interference from other devices in a carnival setting, especially if using Wi-Fi. https://www.pneda.com/

With careful planning, your project can definitely bring a spectacular visual experience to the parade. If you have further questions or need more specific guidance on any of these options, feel free to ask!