[FL-2998] IR TV Universal Remote refactor and docs (#2052)

* Rename signals for IR TV universal remote
* Update UniversalRemotes.md

Co-authored-by: あく <alleteam@gmail.com>

applications/main/infrared/scenes/infrared_scene_universal_tv.c

@@ -24,7 +24,7 @@ void infrared_scene_universal_tv_on_enter(void* context) {
         &I_Power_hvr_25x27,
         infrared_scene_universal_common_item_callback,
         context);
-    infrared_brute_force_add_record(brute_force, i++, "POWER");
+    infrared_brute_force_add_record(brute_force, i++, "Power");
     button_panel_add_item(
         button_panel,
         i,
@@ -36,7 +36,7 @@ void infrared_scene_universal_tv_on_enter(void* context) {
         &I_Mute_hvr_25x27,
         infrared_scene_universal_common_item_callback,
         context);
-    infrared_brute_force_add_record(brute_force, i++, "MUTE");
+    infrared_brute_force_add_record(brute_force, i++, "Mute");
     button_panel_add_item(
         button_panel,
         i,
@@ -48,7 +48,7 @@ void infrared_scene_universal_tv_on_enter(void* context) {
         &I_Vol_up_hvr_25x27,
         infrared_scene_universal_common_item_callback,
         context);
-    infrared_brute_force_add_record(brute_force, i++, "VOL+");
+    infrared_brute_force_add_record(brute_force, i++, "Vol_up");
     button_panel_add_item(
         button_panel,
         i,
@@ -60,7 +60,7 @@ void infrared_scene_universal_tv_on_enter(void* context) {
         &I_Up_hvr_25x27,
         infrared_scene_universal_common_item_callback,
         context);
-    infrared_brute_force_add_record(brute_force, i++, "CH+");
+    infrared_brute_force_add_record(brute_force, i++, "Ch_next");
     button_panel_add_item(
         button_panel,
         i,
@@ -72,7 +72,7 @@ void infrared_scene_universal_tv_on_enter(void* context) {
         &I_Vol_down_hvr_25x27,
         infrared_scene_universal_common_item_callback,
         context);
-    infrared_brute_force_add_record(brute_force, i++, "VOL-");
+    infrared_brute_force_add_record(brute_force, i++, "Vol_dn");
     button_panel_add_item(
         button_panel,
         i,
@@ -84,7 +84,7 @@ void infrared_scene_universal_tv_on_enter(void* context) {
         &I_Down_hvr_25x27,
         infrared_scene_universal_common_item_callback,
         context);
-    infrared_brute_force_add_record(brute_force, i++, "CH-");
+    infrared_brute_force_add_record(brute_force, i++, "Ch_prev");
 
     button_panel_add_label(button_panel, 6, 11, FontPrimary, "TV remote");
     button_panel_add_label(button_panel, 9, 64, FontSecondary, "Vol");

documentation/UniversalRemotes.md

@@ -1,7 +1,19 @@
 # Universal Remotes
+## Televisions
+Adding your TV set to the universal remote is quite straightforward. Up to 6 signals can be recorded: `Power`, `Mute`, `Vol_up`, `Vol_dn`, `Ch_next`, `Ch_prev`. Any of them can be omitted if not supported by the TV.
+
+Each signal is recorded using the following algorithm:
+1. Get the remote and point it to Flipper's IR receiver.
+2. Start learning a new remote if it's the first button or press `+` to add a new button otherwise.
+3. Press a remote button and save it under a corresponding name.
+4. Repeat steps 2-3 until all required signals are saved.
+
+The signal names are self-explanatory. Don't forget to make sure that every recorded signal does what it's supposed to.
+
+If everything checks out, append these signals **to the end** of the [TV universal remote file](/assets/resources/infrared/assets/tv.ir).
+
 ## Audio Players
-### Recording signals
+Adding your audio player to the universal remote is done in the same manner as described above. Up to 8 signals can be recorded: `Power`, `Play`, `Pause`, `Vol_up`, `Vol_dn`, `Next`, `Prev`, `Mute`. Any of them can be omitted if not supported by the player. 
-Adding your audio player to the universal remote is quite straightforward. 8 signals can be recorded: `Power`, `Play`, `Pause`, `Vol_up`, `Vol_dn`, `Next`, `Prev`, `Mute`. Any of them can be omitted if it is not supported by the device. 
 
 The signal names are self-explanatory. 
 On many remotes, the `Play` button doubles as `Pause`. In this case record it as `Play` omitting the `Pause`.
@@ -9,12 +21,7 @@ Make sure that every signal does what it's supposed to.
 
 If everything checks out, append these signals **to the end** of the [Audio players universal remote file](/assets/resources/infrared/assets/audio.ir).
 
-The order of signals is not important, but they must be preceded by a following comment: `# Model: <Your model name>` in order to keep the library organised.
-
-When done, open a pull request containing the changed file.
-
 ## Air Conditioners
-### Recording signals
 Air conditioners differ from most other infrared-controlled devices because their state is tracked by the remote.
 The majority of A/C remotes have a small display which shows current mode, temperature and other settings.
 When the user presses a button, a whole set of parameters is transmitted to the device, which must be recorded and used as a whole.
@@ -49,6 +56,7 @@ Test the file against the actual device. Make sure that every signal does what i
 
 If everything checks out, append these signals **to the end** of the [A/C universal remote file](/assets/resources/infrared/assets/ac.ir).
 
+## Final steps
 The order of signals is not important, but they must be preceded by a following comment: `# Model: <Your model name>` in order to keep the library organised.
 
 When done, open a pull request containing the changed file.