# OT Tcu control

> OT Tcu control (iPhone/iPad app by Optimum Tracker.)

- Source: https://appshunter.io/ios/app/ot-tcu-control/id6758148987 (this page in markdown: same URL + `.md`)
- Developer: [Optimum Tracker](https://appshunter.io/developer/1529310751)
- Category: Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 25 MB
- Languages: American English
- Released: 2026-03-08
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/ot-tcu-control/id6758148987/reviews.md

## What is OT Tcu control?

OT Control establishes a Bluetooth Low Energy (BLE) connection to Optimum Tracker’s Solar Tracker Control Unit (TCU) and provides a real-time overview of the tracker’s operational status.

The application allows technicians to:

Discover nearby TCU devices via Bluetooth

Connect securely to a tracker control unit

Monitor device status and operational values

Configure essential system parameters

Perform maintenance and diagnostics

OT Control communicates with Digi XBee 3 devices via Bluetooth. These devices are connected to the tracker controller through a serial interface and expose operational data through a Modbus RTU interface.

This application provides a safe and convenient interface for interacting with the tracker control system used in Optimum Tracker solar installations.

OT Control is intended for use by trained technicians operating Optimum Tracker equipment.


## Version history (last 2 releases)

### 0.6.3 — 2026-03-17

visual differentiation when connecting to a TCU v1 or V2

### 0.6.2 — 2026-03-09

No release notes.

## More apps by Optimum Tracker

- [AgriTrack](https://appshunter.io/ios/app/agritrack/id6651824574)

All apps by Optimum Tracker: https://appshunter.io/developer/1529310751

## Related topics

[ot tcu control](https://appshunter.io/ios/topics/ot-tcu-control)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-14.*