[ktobias-dev]

Closes #3675

Summary

Received messages that contain certain words play short robot-style chirps, sweeps and warbles on the piezo buzzer, instead of the normal notify tune. Nothing changes on the wire: the receiver recognizes words in the plain text and synthesizes the sound locally.

Word(s)	Sound
happy	rising chirps ending in a warble
sad	long falling whistle
question	flat beep, then a rising glide
excited	shimmer, fast zig-zags, sparkle trill
alarm	accelerating siren with a double shriek
chatter	three short "words" ending like a statement
ack	beep-boop
razz	low buzzy blat
surprised	blip, then a fast whoop
hello / goodbye	cheerful wake-up chirps / two-syllable sign-off
uh-oh, uh oh, uhoh	rising "uh", buzzy falling "oh"
low battery	three drooping tones, the last sagging out
yes, y	single bell ding
no, n	low double buzz

Changes

• src/helpers/ui/botspeak_sounds.h (new): each sound is a table of 4-byte segments: start/end frequency, duration (4 ms units) and vibrato rate/depth, written with a BOT_SEG(f0_hz, f1_hz, ms, vib_hz, vib_depth_hz) macro. Also holds the word table. Only buzzer.cpp includes it.
• genericBuzzer: a non-blocking sweep player, playBot(segs, count). It glides exponentially from f0 to f1 and updates tone() every 2 ms from loop(). playWords(text) queues up to 4 matched sounds with a 150 ms gap between them. Starting an RTTTL tune stops a bot sound and vice versa, and quiet(true) stops playback. Existing RTTTL behavior is unchanged.
• ui-tiny: onMessageRecv / onChannelMessageRecv call buzzer.playWords() after notify(), so vibration still fires and a matched word replaces the tune. For channel messages the <sender>: prefix is skipped first.
• Phone setting: new NodePrefs::bot_with_phone, saved as comp.bot_ph and off by default. When off, sound words follow the existing "only when no phone is connected" rule. A new "bot speak" home page toggles it; turning it on plays "happy" as confirmation.

Notes

• Matching is plain, case-insensitive, whole-word, so normal chat like "hello all" or "happy birthday" will play sounds. That was a deliberate choice over :emoji:-style tokens, but it's easy to change if you prefer.
• Only ui-tiny is wired up so far. ui-new and ui-orig boards build with the new buzzer code but don't call playWords() yet. I can add that here or in a follow-up.
• Sounds sit mostly in the 1–4 kHz range, where small piezos are loudest.

Testing

• LilyGo_T-Echo_Card_companion_radio_ble builds on this branch (RAM 62.6%, Flash 49.8%).
• heltec_v4_r8_companion_radio_ble (ESP32, has a buzzer) built successfully with the player code before the final rename and rebase onto dev. It hasn't been rebuilt since.
• On a T-Echo Card (flashed with the same changes on a main-based build): every sound plays correctly when a direct or channel message is received, and the "bot speak" page and phone setting work as expected.

🤖 Generated with Claude Code

[LitBomb]

Please no. this would be super annoying. the ability to remotely trigger someone's devices to make sound is going to be abused for sure.