add tones to readme.

README.md

@@ -7,8 +7,7 @@ All the mesh chat functionality was directly ported from https://github.com/7h30
 
 ## Hardware
 
-- **Board**: We used a non-standard CYD variant; [1005008564907457] from Aliexpress, mostly for the price and USB-C connector. The peripheral
+- **Board**: We used a non-standard CYD variant; [1005008564907457] from Aliexpress also known as E32R28T, mostly for the price and USB-C connector. The peripheral connectors are placed a little differently from the commonly documented ESP32-2432S028R. The pin configuration in this project is specific to this board and may not work on other CYD revisions without changes to the GPIO assignments.
-connectors are placed a little differently from the commonly documented ESP32-2432S028R. The pin configuration in this project is specific to this board and may not work on other CYD revisions without changes to the GPIO assignments.
 
 ESP32-32E/ESP32-D0WD-V3, no PSRAM, 320×240 ST7789 display, resistive touch.
 - **Keyboard**: M5Stack CardKB v1.1, wired to the board's 1.25 mm
@@ -41,10 +40,9 @@ All values have hardcoded defaults, so any key can be left out entirely.
 |---|---|
 | `nick` | Set nickname. Max 15 characters, no spaces. `/nick <name>` in the app also updates this. |
 | `brightness` | Backlight, 0 (off) - 255 (max). Default 200 |
-| `snd_msg_freq`, `snd_msg_ms` | Frequency and duration (ms) of the incoming-message beep. |
-| `snd_sys_freq`, `snd_sys_ms` | Frequency and duration (ms) of the join/leave beep. |
 | `touch_threshold` | Threshold for touch to wake on Touch7 pin. Higher = easier to trigger. Not recommended for now. |
 | `color_*` | 6-digit hex RGB (no `#`), same format as CSS, e.g. `ff0000` is red. See the table below for which UI element each one controls. |
+| `tones_msg` and  `tones_sys` | Set the new message and system message melodies in MML format, see below. |
 
 | Color key | Controls |
 |---|---|
@@ -59,6 +57,21 @@ All values have hardcoded defaults, so any key can be left out entirely.
 Colors can also be changed from the device itself with `/set <key> <hex>`
 (e.g. `/set color_bg ff0000`), see below.
 
+## Sounds
+
+You can set the new message [`tones_msg`] and system message [`tones_sys`] sounds (like a new user entering the chat) using a MML music notation string using the `/set` command. 
+
+Example:
+`/set tones_msg t300 o4`
+
+The defaults are:
+- New message: `t300 d8 a+4`, Tempo 300bpm, D for 1/8, A for 1/4
+- System message: `t300 a8 d+4`, Tempo 300bpm, A for 1/8, D for 1/4
+
+More information here: https://github.com/maxint-rd/MmlMusic
+And to listen to a MML string: https://matarillo.github.io/mmlplayer/
+
+
 ## Chat commands
 
 Typed into the input line, same as any chat message:
@@ -71,6 +84,7 @@ Typed into the input line, same as any chat message:
 | `/clear` | Clear the chat window |
 | `/clearnotes` | Erase all saved notes |
 | `/set <color_key> <hex>` | Change a color setting; saved to `config.txt`, visible after sleep/restart |
+| `/set <tones_key> <tones>` | Change a tones setting; saved to `config.txt`, audible after sleep/restart |
 | `/bt` | Toggle BT send mode (see below) |
 | `/sleep` | Put the device to deep sleep (wake via BOOT button or touch7) |
 | `/help` | List commands on-device |

platformio.ini

@@ -31,12 +31,10 @@ lib_deps =
 build_flags =
 	-DLV_CONF_INCLUDE_SIMPLE
 	-I include
-	; use strchr instead of strchr_P
+	; NimBLE takes up too much memory, disable what we dont need.
-	-Dstrchr_P=strchr
-	; We only need HID peripheral from NimBLE
-	; saving some memory here.
 	-DCONFIG_BT_NIMBLE_ROLE_CENTRAL_DISABLED
 	-DCONFIG_BT_NIMBLE_ROLE_OBSERVER_DISABLED
+	-include src/meshberry/compat.h
 
 [env:evilchat-relay]
 platform = https://github.com/pioarduino/platform-espressif32/releases/download/stable/platform-espressif32.zip