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Ethernet Tally light, USB power and optional PoE, two contact inputs, ESP32S3
ESP32
LEDs
Ethernet

Note

Images to be updated - there is a white diffuser on the front.

What it is

This is designed to be a tally light for film / theatre use - to advise presentors / actors of status, camera, etc.

It is very useful to have a light that needs just one cable, Ethernet, to a PoE switch. But it can also work of USB power and Ethernet or WiFi, so a lot of flexibility.

Sometimes a button is, apparently, useful - so this allows two buttons or contacts can also be connected.

Details

  • Small PCB 40x70mm
  • ESP32-S3-MINI-1-N4-R2 Dual core, 4M flash, 2M SPIRAM, 240MHz processor
  • 20 WS2812 style LEDs on one end as Tally, plus one for status
  • USB-C for power and debug
  • Two inputs on WAGO connectors for contacts/button
  • KSZ8851SNL SPI 10/100 Ethernet
  • Optional Ag9912-LP PoE module for power
  • Black resin case - with ¼"-20 screw thread for camera mount
  • White resin diffuser for the LEDs - easy to attach text label
  • Several GPIOs exposed on test pads

Help make this better

I do not know a lot about the industry, and so very keen to get feedback. Thankfully I have one customer that does.

The software I have for now is my normal LED controller code, which has all sorts of LED effects, but can work simply as an on/off LED (strip) controlled from Home Assistant. I suspect it needs more specific code for film / theatre applications, and I understand there are some standard protocols. Do let me know what you need and I'll work on sofware. Obviously you can load your own code and do what you like.

The case design is black resin to be discrete if in shot, with a white resin diffuser on the 20 LEDs. These can light any colour and control brightness as you need (WS2812).

Links to code and documentation

Documentation (led.revk.uk)

Code (led.revk.uk)

Design Files (led.revk.uk)

Schematics (led.revk.uk)

Bom (led.revk.uk)

Product HS Code: 847330

Shipping policy

All parcels shipped with tracked shipping, usually shipped within one working day. If you find a large order has no shipping to EU, try placing smaller orders under €150. And we're sorry for US customers as it seems tariffs are now 50%.

Ethernet Tally Light and input module (opt PoE)

Sold by RevK® at Andrews & Arnold Ltd

$66.72

No tax for United States [change]
Optional PoE Adapter
Version of board
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The seller

RevK® at Andrews & Arnold Ltd

RevK® at Andrews & Arnold Ltd logo

BRACKNELL, Berks, UK
596 orders since Apr 3, 2025
Andrews & Arnold Ltd are a UK based communications company. We sell internet, telephone, SMS, and make some serious routers (FireBrick), and some PCBs.
We use a lot of open source, and give back with a lot of open source code and hardware designs on Codeberg.
We have many open source PCB designs. These are not sold as consumer products, but assembled PCBs, development boards for hobbyist use.
Suggestions and git merge requests on Codeberg always welcome.
We recommend EU customers order under €150 in one go.