The Maximite can make sound using the ‘SOUND’ command. The SOUND command accepts a frequency to play for the sound and a duration to play that sound.
MMIDE has an Applet that plays Ode to Joy.
On the CGMMSTICK the audio connection is NOT on J1 along with all of the port lines. Instead it is at the top of the board on an unpopulated header named J5.
On J5 the top connection is ground, the bottom (square) hole is the audio line.
If you have a small amplifier, you can connect the amp to these two lines and run the Ode to Joy Applet that is in MMIDE.
CGMMSTICK1 audio connection.
Using the Ode to Joy Applet in MMIDE to play a tune.
The Ode to Joy Applet downloads a MMBasic program to the CGMMSTICK and then runs that program. Below is the program that is sent. You might notice that there is a test for data where the frequency could be 0. If the frequency is 0 no note is played, just a delay.
I asked my 15 year old son to write this program. He used a frequency/note chart to get the frequencies right, but the notes for Ode to Joy were in his head – he didn’t have to look them up.
His frequency table was a little bit different than the table that I reproduced after the program below.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 |
10 FOR a=1 TO 65 20 READ fr,du 30 IF fr=0 THEN 40 PAUSE du 50 ELSE 60 SOUND fr,du 70 ENDIF 80 PAUSE du 90 PAUSE 30 100 NEXT a 110 DATA 493.88,300,493.88,300 120 DATA 523.25,300,587.33,300 130 DATA 587.33,300,523.25,300 140 DATA 493.88,300,440.00,300 150 DATA 392.00,300,392.00,300 160 DATA 440.00,300,493.88,300 170 DATA 493.88,450,440.00,200 180 DATA 440.00,300 190 DATA 0,200 200 DATA 493.88,300,493.88,300 210 DATA 523.25,300,587.33,300 220 DATA 587.33,300,523.25,300 230 DATA 493.88,300,440.00,300 240 DATA 392.00,300,392.00,300 250 DATA 440.00,300,493.88,300 260 DATA 440.00,450,392.00,200 270 DATA 392.00,300 280 DATA 0,200 290 DATA 440.00,300,440.00,300 300 DATA 493.88,300,392.00,300 310 DATA 440.00,300,493.88,150 320 DATA 523.25,150,493.88,300 330 DATA 392.00,300,440.00,300 340 DATA 493.88,150,523.25,150 350 DATA 493.88,300,440.00,300 360 DATA 392.00,300,440.00,300 370 DATA 293.66,550 380 DATA 0,200 390 DATA 493.88,300,493.88,300 400 DATA 523.25,300,587.33,300 410 DATA 587.33,300,523.25,300 420 DATA 493.88,300,440.00,300 430 DATA 392.00,300,392.00,300 440 DATA 440.00,300,493.88,300 450 DATA 440.00,450,392.00,200 460 DATA 392.00,300 |
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Note
Frequency
Note
Frequency
C
16.4
C
262
C sharp / D flat
17.3
C sharp / D flat
277
D
18.4
D
294
D sharp / E flat
19.5
D sharp / E flat
311
E
20.6
E
330
F
21.8
F
349
F sharp / G flat
23.1
F sharp / G flat
370
G
24.5
G
392
G sharp / A flat
26
G sharp / A flat
415
A
27.5
A
440
A sharp / B flat
29.1
A sharp / B flat
466
B
30.9
B
494
C
32.7
C
523
C sharp / D flat
34.7
C sharp / D flat
554
D
36.7
D
587
D sharp / E flat
38.9
D sharp / E flat
622
E
41.2
E
659
F
43.7
F
698
F sharp / G flat
46.3
F sharp / G flat
740
G
49
G
784
G sharp / A flat
51.9
G sharp / A flat
831
A
55
A
880
A sharp / B flat
58.3
A sharp / B flat
932
B
61.7
B
988
C
65.4
C
1047
C sharp / D flat
69.3
C sharp / D flat
1109
D
73.4
D
1175
D sharp / E flat
77.8
D sharp / E flat
1245
E
82.4
E
1319
F
87.3
F
1397
F sharp / G flat
92.5
F sharp / G flat
1480
G
98
G
1568
G sharp / A flat
104
G sharp / A flat
1661
A
110
A
1760
A sharp / B flat
117
A sharp / B flat
1865
B
123
B
1976
C
131
C
2093
C sharp / D flat
139
C sharp / D flat
2217
D
147
D
2349
D sharp / E flat
156
D sharp / E flat
2489
E
165
E
2637
F
175
F
2794
F sharp / G flat
185
F sharp / G flat
2960
G
196
G
3136
G sharp / A flat
208
G sharp / A flat
3322
A
220
A
3520
A sharp / B flat
233
A sharp / B flat
3729
B
247
B
3951
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