BEACON Mode

Overview

BEACON is the default and primary mode. On a fixed interval the device wakes, transmits the configured Morse payload on every frequency in the plan, then deep-sleeps. Runtime on a 2000 mAh cell is roughly 65 hours at a 10 s interval, up to 175 hours at 60 s.

TX Cycle

1. WiFi and Bluetooth are disabled (saves ~120 mA).
2. The Morse payload is built: base message + name + GPS if enabled.
3. The radio initializes in CW mode at the first frequency.
4. The payload is transmitted, repeated N times per frequency.
5. The OLED shows the frequency, TX progress bar and scrolling payload.
6. The device enters deep sleep for the configured interval.
7. RTC RAM preserves the mode, counters and last GPS fix.

OLED Layout

Area	Content
Header	TX BEACON + cycle number + battery icon
Center	Large frequency (logisoso24)
Info line	Channel, power, WPM
Progress	TX progress bar
Bottom	Scrolling payload, GPS state, battery %, sleep countdown

Payload Configuration

Setting	NVS key	Default
Base message	msg	SOS
Include name	namen	false
First name	fname	empty
Last name	lname	empty
Include GPS	gpsbeac	false
Repeat count	rep	1

Power and Sleep

Sleep interval	Est. runtime (2000 mAh)
10 s	~65 h
30 s	~130 h
60 s	~175 h

Related Pages

• Operating Modes
• Morse Code Engine
• Power Management
• GPS Integration