Perchi Matrix vs Ulanzi TC001: buy the pixel clock and flash it, or buy the one that arrives ready?

The Ulanzi TC001 is the pixel clock the smart-home community standardised on: 8x32 WS2812 LEDs (256 pixels) in a 200.6 x 70.3 x 31.9 mm body with a 4,400 mAh battery good for about 5 hours, USB-C, a buzzer, and light, temperature and humidity sensors. It costs $45.99 at ulanzi.com and ₹7,790 on Amazon.in through Tektonic India, the only ready-made pixel clock we found on sale in India. The stock firmware does a clock, weather, a pomodoro timer, a stopwatch, a scoreboard and YouTube, TikTok and Instagram counts through Ulanzi's phone app, which needs no account.

Its real value is that Ulanzi officially lists AWTRIX and Home Assistant as supported, and the ESP32 inside can be flashed over USB-C without soldering. Reviewers call it compact, bright, retro and a blank 256-pixel canvas. The complaints: Amazon's review summary says the setup process receives criticism for being very complicated and the buttons are hard to understand; owners report the glued-in battery is hard to replace, the temperature sensor reads high because the ESP32 heats it, the stock weather source does not cover locations outside China, the AWTRIX simulator can lag, and it is only 256 pixels.

Perchi Matrix (₹4,499 including GST) is a connected LED desk display built from 8x8 WS2812B panels, 24x8 at launch, driven by an ESP32-S3 running Perchi OS. You pair it from a browser in under a minute with a 6-digit code shown on the LEDs, then install apps from a library of 70+: YouTube subscribers, GitHub stars and Actions, Vercel deploys, Razorpay payments, Stripe and Shopify sales, a calendar countdown, weather, a desk pet. Thirty-seven of them work with zero setup beyond a handle or a location. Every app is styled per app with pixel-exact previews, and 14 celebration effects fire the moment a webhook lands.

For makers there is a no-code builder, a REST API, webhooks with 15 provider presets, an MCP server for AI assistants, an SDK and CLI, and the authenticated AWTRIX-3-compatible local API with MQTT and Home Assistant discovery; see Developers. Updates are signed and roll back automatically. The 32x8, 64x16 and 64x32 sizes run the same firmware and open later on the waitlist; see sizes.

AWTRIX 3, the firmware that made the TC001 famous, is archived upstream: no new releases and no issue support. Its successor, AWTRIX NG, is a from-scratch rewrite with an API that is not compatible with AWTRIX 3, a PolyForm Noncommercial licence, authentication off by default and manual .bin updates. A TC001 owner today chooses between a frozen AWTRIX 3, a migration to NG that rewrites every automation, or ESPHome.

Perchi Matrix keeps the AWTRIX 3 surface alive: an authenticated subset of the local API (notify, custom apps, switch, settings, power, indicators) and the same MQTT topics with Home Assistant discovery, so existing Home Assistant and Node-RED flows keep working with a company behind them. It does not implement the AWTRIX NG API. The details are on Perchi Matrix vs AWTRIX and the definition on what an AWTRIX-compatible display is.

A flashed TC001 appears in Home Assistant through AWTRIX's MQTT discovery, or through ESPHome if you go that way; either path needs a flash and a YAML or MQTT setup. Perchi Matrix turns up as a light, a text entity, an app selector and sensors through MQTT discovery in bearer mode, with no flashing; the Home Assistant app page lists the entities and the rest_command recipe.

In the US the TC001 is the cheaper device by a wide margin, with a battery and a buzzer that Perchi Matrix lacks, and the DIY community's default advice is to buy a TC001 and flash it. In India the order flips: the TC001 lands at ₹7,790 through an importer and Perchi Matrix is ₹4,499 including GST, sold direct with a GST invoice, a 12-month warranty serviced in India and Shiprocket delivery. See Pricing for what is in the box.