Is ATS Mini Controller free?

Yes. It is completely free, with no subscription or feature gating.

Does it work with my firmware version?

USB remote control works on any reasonably recent ATS Mini firmware. Bluetooth LE, fast direct tuning and the theme editor’s newer command set require firmware 2.34+; the app detects the version automatically and adapts.

Why doesn’t it work in Safari or Firefox?

Those browsers do not implement the Web Serial or Web Bluetooth APIs the app depends on. A banner in the app tells you when your browser is unsupported.

Should I pick USB or Bluetooth?

USB transfers screenshots in a second or two but couples power-rail noise into the radio’s audio output. Bluetooth keeps the radio on battery for clean audio streaming, though screenshots take much longer (about 30 seconds) due to the firmware’s BLE throughput cap.

Can the app transmit?

No. The ATS Mini is a receiver; the app only listens and controls receiver settings.

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About ATS Mini Controller

Name: ATS Mini Controller
Author: Grzegorz Zajac

ATS Mini Controller is a free web application that turns a Chromium browser into a remote control for the ATS Mini, a pocket-sized ESP32-S3 / SI4732 radio receiver covering FM, longwave, mediumwave and shortwave with SSB support. The app talks to the radio's firmware over USB (Web Serial API) or Bluetooth LE (Web Bluetooth API). There is nothing to install, and radio traffic never leaves your computer.

What you can do with it

Tune remotely. Type any frequency and the app drives the radio there, switching band, mode and step for you. On firmware 2.34+ it uses the firmware's fast direct-tune path.
Control everything. Band, mode (FM/AM/LSB/USB), bandwidth, tuning step, AGC/attenuator, volume, backlight, calibration and sleep, from on-screen buttons or keyboard shortcuts.
Manage memory. Read, edit and upload the radio's 99 memory slots with post-upload verification, and save or load them to a local file.
Browse EiBi schedules. The full EiBi shortwave broadcast database, cached offline in your browser, filterable by what is on air now, distance and language. Tune to a station with one click.
Scan the spectrum. Sweep a frequency range and chart RSSI/SNR to spot activity, then tune to a peak.
Capture screenshots. Grab the radio's display, optionally after every command, with a session gallery.
Edit display themes. Change the firmware's on-screen colours from the browser.
Stream audio. Route the radio's audio output into the browser tab.
Watch propagation. Live solar data (solar flux, A/K index, band conditions) and local weather for portable use.

Requirements

An ATS Mini receiver. USB remote control works on older firmware; Bluetooth LE and fast tuning require firmware 2.34 or newer.
A Chromium-based browser: Chrome, Edge or Opera on desktop (USB and Bluetooth) or Chrome on Android (Bluetooth only). Safari and Firefox do not implement Web Serial / Web Bluetooth.
On the radio: Settings → USB Port → Ad hoc for USB, or Settings → Bluetooth → Ad hoc for BLE.

How to connect

Open the app and choose the transport, USB or Bluetooth (baud rate stays at 115200).
Click Connect and pick your radio in the browser's device chooser. Browsers require this choice to be made by hand, for security.
The app reads the radio's status and you are in control. Press ? in the app for keyboard shortcuts.

New to this? The guide has a full walkthrough of connecting over USB or Bluetooth, including the firmware Ad hoc setting and which browsers work.

Privacy & data

The app is free and stores its settings (and the EiBi schedule cache) only in your browser. Serial and Bluetooth traffic stays between your browser and the radio. The app fetches external data from exactly three sources: the EiBi schedule file (proxied through this site), solar propagation data from hamqsl.com, and (only if you enable the weather widget and share a location) weather from Open-Meteo. Cloudflare Web Analytics collects anonymous, cookie-free page metrics.

Frequently asked questions

Is ATS Mini Controller free?: Yes. It is completely free, with no subscription or feature gating.
Does it work with my firmware version?: USB remote control works on any reasonably recent ATS Mini firmware. Bluetooth LE, fast direct tuning and the theme editor’s newer command set require firmware 2.34+; the app detects the version automatically and adapts.
Why doesn’t it work in Safari or Firefox?: Those browsers do not implement the Web Serial or Web Bluetooth APIs the app depends on. A banner in the app tells you when your browser is unsupported.
Should I pick USB or Bluetooth?: USB transfers screenshots in a second or two but couples power-rail noise into the radio’s audio output. Bluetooth keeps the radio on battery for clean audio streaming, though screenshots take much longer (about 30 seconds) due to the firmware’s BLE throughput cap.
Can the app transmit?: No. The ATS Mini is a receiver; the app only listens and controls receiver settings.

Author & contact

Built by Grzegorz Zajac. ATS Mini Controller is an independent project, not affiliated with the ATS Mini firmware project or any hardware vendor.

Questions, bug reports or feedback? Email contact@atsminiradio.com.