ATS Mini V4 Firmware Comparison: ats-mini vs H.J. Berndt

Sep 7, 2026 7:07pm · 22 views
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Markdown

Quick reference comparing the two main alternative firmwares for the ATS Mini V4 (ESP32-S3 + Si4732). See the full how-to for flashing steps from an Android phone.

ats-mini (esp32-si4732 / G8PTN fork)H.J. Berndt Firmware
PhilosophyBroad, actively developed, community-drivenFocused operator's tool — on-radio decoding, snappy tuning
Open sourceYes (GitHub)No — compiled binary only
Standout featureEiBi schedule support, EEPROM backup/restore via web UI, web memory editor, theme editorBuilt-in RTTY & CW/Morse decoder, signal plotter, station list overlay on frequency scale
InterfaceSingle-press encoder actions, status bar, VFO/BFO SSB tuning, optional large S-meter layoutSophisticated display layout, FM RDS visualization, NUMPAD frequency entry
ExtrasWeb status page, RDS, squelch, per-band mode memorySerial logging/screenshots, no WiFi required, ETM auto-scan, AM band monitor
Hardware mod neededNoneNone on V4 (older V1-V3 needed a one-wire solder mod)
Best forTinkerers wanting ongoing updates and web toolsUtility/maritime DX, RTTY/CW monitoring, WWV work

Links: ats-mini docs | Berndt firmware page