250406

Suspend function added. It fires when

• battery cutoff voltage reached (currently 3.5V);
• suspend timeout reached (could be set in Settings menu).

When device is put into suspend mode, ESP32 enters deep sleep. In this state it only consumes a small amount of power.

To wake the device up, one should turn it off and on again.

250316

• Percieved brightness using gamma curve.
• Smooth scroll for frequency scale.

ats_mini.250316.zip

250312

• Battery icon changed
• S-meter scale cosmetic fix

ats_mini.250312.zip