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46: Buzzer Sequence ​

Play a sequence of buzzer sounds

Payload ​

FieldNameDescriptionTypeUnit
6FrequenciesArray of requested frequencies in kHz as floats; zero is a restfloat32[]
7TimingsArray of timings in ms as uint16uint16[]

Examples ​

Play a complex sequence of sounds
Protocol
03
3
Length
23100
231 bytes
Type
4600
46 (Buzzer Sequence)
Header Count
0100
1
Header Types
01
1
Message ID
0468000000
68
Payload Count
0200
2
Payload Types
0607
6, 7
Frequencies
14017471225620000000017471225620000000017471225620000000033176178620000000084227056300000000174712256200000000331761786200000000842270563000000
0.4399999976158142,0,0.4399999976158142,0,0.4399999976158142,0,0.3490000069141388,0,0.5230000019073486,0,0.4399999976158142,0,0.3490000069141388,0,0.5230000019073486,0,0.4399999976158142,0,0.6589999794960022,0,0.6589999794960022,0,0.6589999794960022,0,0.6980000138282776,0,0.5230000019073486,0,0.41499999165534973,0,0.3490000069141388,0,0.5230000019073486,0,0.4399999976158142
Timings
7014401500014401500014401500044015000100005000144015000440150001000050003203500014401500014401500014401500044015000100005000144015000440150
400,50,400,50,400,50,300,50,100,50,400,50,300,50,100,50,800,50,400,50,400,50,400,50,300,50,100,50,400,50,300,50,100,50,800
Checksum
21948
12507
📡 Real example from RH2 ESP32 Toit on 2025-10-14This example is captured from an RH2 device as part of normal communications over I2C with the ESP32 co-processor, where Toit on the ESP32 made the request.
Play the classic Nokia tune
Original monophonic arrangement of the Gran vals phrase by Francisco Tárrega (1902), widely known as the classic Nokia tune. Underlying composition: public domain in the UK; no recording included. Nokia branding/trademark rights are separate. METHOD_SET, message ID 72; 25 segments, 3300 ms encoded duration. Frequencies use requested kHz; zero is a rest. Hardware playback may differ.
Protocol
3
3
Length
1740
174 bytes
Type
460
46 (Buzzer Sequence)
Header Count
20
2
Header Types
15
1, 5
Message ID
472000
72
Method
11
1 (SET)
Payload Count
20
2
Payload Types
67
6, 7
Frequencies
10024119616863000058911506300002331116163000020916284630000226234141630000702221246300005891226300002411964063000
1.3185101747512817,0,1.174659013748169,0,0.7399888634681702,0,0.8306093811988831,0,1.1087305545806885,0,0.9877666234970093,0,0.5873295068740845,0,0.6592550873756409,0,0.9877666234970093,0,0.8799999952316284,0,0.5543652772903442,0,0.6592550873756409,0,0.8799999952316284
Timings
50140010014001003411003411001400100140010034110034110014001001400100341100341100882
140,10,140,10,290,10,290,10,140,10,140,10,290,10,290,10,140,10,140,10,290,10,290,10,600
Checksum
12025
6520
Play Fur Elise
Original monophonic arrangement of the opening of Für Elise by Ludwig van Beethoven. Underlying composition: public domain in the UK; no recording included. Left-hand accompaniment is omitted. Score: https://www.mutopiaproject.org/cgibin/piece-info.cgi?id=931 METHOD_SET, message ID 75; 40 segments, 9600 ms encoded duration. Frequencies use requested kHz; zero is a rest. Hardware playback may differ.
Protocol
3
3
Length
81
264 bytes
Type
460
46 (Buzzer Sequence)
Header Count
20
2
Header Types
15
1, 5
Message ID
475000
75
Method
11
1 (SET)
Payload Count
20
2
Payload Types
67
6, 7
Frequencies
16024119640639763163241196406397631632411964063702222526258912263201243563174712256200002012431336224119616862174712256270222252620000241196168
0.6592550873756409,0.622253954410553,0.6592550873756409,0.622253954410553,0.6592550873756409,0.49388331174850464,0.5873295068740845,0.5232511162757874,0.4399999976158142,0,0.2616255581378937,0.32962754368782043,0.4399999976158142,0.49388331174850464,0,0.32962754368782043,0.41530469059944153,0.49388331174850464,0.5232511162757874,0,0.32962754368782043,0.6592550873756409,0.622253954410553,0.6592550873756409,0.622253954410553,0.6592550873756409,0.49388331174850464,0.5873295068740845,0.5232511162757874,0.4399999976158142,0,0.2616255581378937,0.32962754368782043,0.4399999976158142,0.49388331174850464,0,0.32962754368782043,0.5232511162757874,0.49388331174850464,0.4399999976158142
Timings
802000200020002000200020002000200014412000200020002000144120002000200020001441200020002000200020002000200020002000200014412000200
200,200,200,200,200,200,200,200,400,200,200,200,200,400,200,200,200,200,400,200,200,200,200,200,200,200,200,200,200,400,200,200,200,200,400,200,200,200,200,800
Checksum
119174
44663
Play the William Tell overture
Original monophonic arrangement of the gallop theme from William Tell by Gioachino Rossini. Underlying composition: public domain in the UK; no recording included. Violin melody raised one octave, at a moderate tempo. Source: Breitkopf & Härtel 1899 full score (arr. Fritz Hoffmann), pages 28–29, pickup and bars 244–250. https://vmirror.imslp.org/files/imglnks/usimg/6/6d/IMSLP33461-PMLP07234-Rossini_-_Guillaume_Tell_Overture_(full_score).pdf METHOD_SET, message ID 77; 60 segments, 8120 ms encoded duration. Frequencies use requested kHz; zero is a rest. Hardware playback may differ.
Protocol
3
3
Length
1281
384 bytes
Type
460
46 (Buzzer Sequence)
Header Count
20
2
Header Types
15
1, 5
Message ID
477000
77
Method
11
1 (SET)
Payload Count
20
2
Payload Types
67
6, 7
Frequencies
24070222252620000702222526200007022225262000070222252620000702222526200007022225262000070222252620000702222526224119640
0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0.6592550873756409,0.7399888634681702,0.8306093811988831,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0.6592550873756409,0.7399888634681702,0,0.7399888634681702,0,0.7399888634681702,0.622253954410553,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0,0.49388331174850464,0.6592550873756409,0.7399888634681702,0.8306093811988831,0.6592550873756409,0.8306093811988831,0.9877666234970093,0.8799999952316284,0.8306093811988831,0.7399888634681702
Timings
12012002001200200412001200200120020041200120020014002412412411200200120020041200120020014002411200200120020
120,20,120,20,260,20,120,20,120,20,260,20,120,20,140,280,280,280,120,20,120,20,260,20,120,20,140,280,120,20,120,20,280,280,260,20,120,20,120,20,260,20,120,20,120,20,260,20,120,20,140,280,280,280,140,140,700,140,140,140
Checksum
57147
37689

Code ​

For convenience, the following constants can be used to reference this message type.