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トップに関する質問BME280で取得した数値によってLEDの出力を変えたい（言語：C）

編集履歴

質問編集履歴

3

誤字

2018/07/11 06:57

投稿

Shokotao
Shokotao

スコア8

test CHANGED
File without changes
test CHANGED
@@ -502,13 +502,13 @@
502
502
 
503
503
  sketch/BME280_MOD-1022.h:41:21: warning: extra tokens at end of #ifndef directive
504
504
 
505
- #ifndef __BME280_MOD-1022_H
505
+ ＃ifndef __BME280_MOD-1022_H
506
506
 
507
507
  ^
508
508
 
509
509
  sketch/BME280_MOD-1022.h:42:21: warning: ISO C99 requires whitespace after the macro name
510
510
 
511
- #define __BME280_MOD-1022_H
511
+ ＃define __BME280_MOD-1022_H
512
512
 
513
513
  ^
514
514
 

2

誤字

2018/07/11 06:57

投稿

Shokotao
Shokotao

スコア8

test CHANGED
File without changes
test CHANGED
@@ -494,7 +494,7 @@
494
494
 
495
495
  するとこの様なエラー文が表示されました。
496
496
 
497
- > Arduino：1.8.5 (Mac OS X), ボード："Arduino Nano, ATmega328P"
497
+ Arduino：1.8.5 (Mac OS X), ボード："Arduino Nano, ATmega328P"
498
498
 
499
499
 
500
500
 

1

誤字、追加

2018/07/11 06:56

投稿

Shokotao
Shokotao

スコア8

test CHANGED
@@ -1 +1 @@
1
- Arduinoについて
1
+ BME280で取得した数値によってLEDの出力を変えたい（言語：C）
test CHANGED
@@ -1,10 +1,220 @@
1
+ Arduino nanoとBME280、そしてC言語を使って、電子おもちゃを作ろうとしております。
2
+
3
+ 動作としては、BME280で得た気温の数値によってLEDの光り方を変化させるというものです。
4
+
5
+
6
+
7
+ それを作るべくC言語をいろいろ編集していたところ、IF文の作成のところで躓いてしまいました。
8
+
9
+
10
+
11
+
12
+
13
+ 最初、BME280から気温等をインプットし、シリアルモニタに出力するコードを作りました。
14
+
15
+ そして、無事出力できました。
16
+
17
+ ```C
18
+
19
+ void printFormattedFloat(float x, uint8_t precision) {
20
+
21
+ char buffer[10];
22
+
23
+ dtostrf(x, 7, precision, buffer);
24
+
25
+ Serial.print(buffer);
26
+
27
+ }
28
+
29
+
30
+
31
+ // print out the measurements
32
+
33
+ void printCompensatedMeasurements(void) {
34
+
35
+ float temp, humidity, pressure, pressureMoreAccurate;
36
+
37
+ double tempMostAccurate, humidityMostAccurate, pressureMostAccurate;
38
+
39
+ char buffer[80];
40
+
41
+ temp = BME280.getTemperature();
42
+
43
+ humidity = BME280.getHumidity();
44
+
45
+ pressure = BME280.getPressure();
46
+
47
+ pressureMoreAccurate = BME280.getPressureMoreAccurate();
48
+
49
+ tempMostAccurate = BME280.getTemperatureMostAccurate();
50
+
51
+ humidityMostAccurate = BME280.getHumidityMostAccurate();
52
+
53
+ pressureMostAccurate = BME280.getPressureMostAccurate();
54
+
55
+ printFormattedFloat(tempMostAccurate, 2);
56
+
57
+ Serial.print(" ");
58
+
59
+ printFormattedFloat(humidityMostAccurate, 2);
60
+
61
+ Serial.print(" ");
62
+
63
+ printFormattedFloat(pressureMostAccurate, 2);
64
+
65
+ Serial.println();
66
+
67
+ }
68
+
69
+
70
+
71
+
72
+
73
+ // setup wire and serial
74
+
75
+
76
+
77
+ void setup()
78
+
79
+ {
80
+
81
+ Wire.begin();
82
+
83
+ Serial.begin(9600);
84
+
85
+ pinMode(16,INPUT);
86
+
87
+ pinMode(17,OUTPUT);
88
+
89
+ digitalWrite(17,0);
90
+
91
+ }
92
+
93
+
94
+
95
+ // main loop
96
+
97
+ void loop()
98
+
99
+ {
100
+
101
+ uint8_t chipID;
102
+
103
+ chipID = BME280.readChipId();
104
+
105
+ Serial.print("ChipID = 0x");
106
+
107
+ Serial.print(chipID, HEX);
108
+
109
+
110
+
111
+ // need to read the NVM compensation parameters
112
+
113
+ BME280.readCompensationParams();
114
+
115
+
116
+
117
+ BME280.writeOversamplingPressure(os1x);
118
+
119
+ BME280.writeOversamplingTemperature(os1x);
120
+
121
+ BME280.writeOversamplingHumidity(os1x);
122
+
123
+
124
+
1
- bme280とArduinoを使って作品を作っています。
125
+ BME280.writeMode(smForced);
126
+
2
-
127
+ while (BME280.isMeasuring()) {
128
+
129
+ Serial.println("Measuring...");
130
+
131
+ delay(50);
132
+
133
+ }
134
+
135
+ Serial.println("Done!");
136
+
137
+ // read out the data - must do this before calling the getxxxxx routines
138
+
139
+ BME280.readMeasurements();
140
+
141
+ Serial.print("Temp=");
142
+
143
+ Serial.println(BME280.getTemperature()); // must get temp first
144
+
145
+ Serial.print("Humidity=");
146
+
147
+ Serial.println(BME280.getHumidity());
148
+
3
- if文で書いた文章が{not declared}と表示されてしまいます。
149
+ Serial.print("Pressure=");
150
+
4
-
151
+ Serial.println(BME280.getPressure());
152
+
153
+ Serial.print("PressureMoreAccurate=");
154
+
155
+ Serial.println(BME280.getPressureMoreAccurate()); // use int64 calculcations
156
+
157
+ Serial.print("TempMostAccurate=");
158
+
159
+ Serial.println(BME280.getTemperatureMostAccurate()); // use double calculations
160
+
161
+ Serial.print("HumidityMostAccurate=");
162
+
163
+ Serial.println(BME280.getHumidityMostAccurate()); // use double calculations
164
+
165
+ Serial.print("PressureMostAccurate=");
166
+
167
+ Serial.println(BME280.getPressureMostAccurate()); // use double calculations
168
+
169
+
170
+
171
+ // Example for "indoor navigation"
172
+
173
+ // We'll switch into normal mode for regular automatic samples
174
+
175
+
176
+
177
+ BME280.writeStandbyTime(tsb_0p5ms); // tsb = 0.5ms
178
+
179
+ BME280.writeFilterCoefficient(fc_16); // IIR Filter coefficient 16
180
+
181
+ BME280.writeOversamplingPressure(os16x); // pressure x16
182
+
183
+ BME280.writeOversamplingTemperature(os2x); // temperature x2
184
+
185
+ BME280.writeOversamplingHumidity(os1x); // humidity x1
186
+
187
+ BME280.writeMode(smNormal);
188
+
189
+
190
+
5
- 解決策を教えてください。
191
+ while (1) {
192
+
6
-
193
+ while (BME280.isMeasuring()) {
194
+
7
-
195
+ }
196
+
197
+
198
+
199
+ // read out the data - must do this before calling the getxxxxx routines
200
+
201
+ BME280.readMeasurements();
202
+
203
+ printCompensatedMeasurements();
204
+
205
+ delay(1000); // do this every 5 seconds
206
+
207
+ }
208
+
209
+ }
210
+
211
+ ```
212
+
213
+
214
+
215
+ そしてその後、if文を追加しました。そのコードが以下となります。
216
+
217
+ ```C
8
218
 
9
219
  #include "BME280_MOD-1022.h"
10
220
 
@@ -16,9 +226,9 @@
16
226
 
17
227
  char buffer[10];
18
228
 
19
- dtostrf(x, 7, precision, buffer);
229
+ dtostrf(x, 7, precision, buffer);
20
-
230
+
21
- Serial.print(buffer);
231
+ Serial.print(buffer);
22
232
 
23
233
  }
24
234
 
@@ -34,43 +244,43 @@
34
244
 
35
245
  char buffer[80];
36
246
 
37
- temp = BME280.getTemperature();
247
+ temp = BME280.getTemperature();
38
-
248
+
39
- humidity = BME280.getHumidity();
249
+ humidity = BME280.getHumidity();
40
-
250
+
41
- pressure = BME280.getPressure();
251
+ pressure = BME280.getPressure();
42
-
252
+
43
- pressureMoreAccurate = BME280.getPressureMoreAccurate();
253
+ pressureMoreAccurate = BME280.getPressureMoreAccurate();
44
-
254
+
45
- tempMostAccurate = BME280.getTemperatureMostAccurate();
255
+ tempMostAccurate = BME280.getTemperatureMostAccurate();
46
-
256
+
47
- humidityMostAccurate = BME280.getHumidityMostAccurate();
257
+ humidityMostAccurate = BME280.getHumidityMostAccurate();
48
-
258
+
49
- pressureMostAccurate = BME280.getPressureMostAccurate();
259
+ pressureMostAccurate = BME280.getPressureMostAccurate();
50
-
260
+
51
- printFormattedFloat(tempMostAccurate, 2);
261
+ printFormattedFloat(tempMostAccurate, 2);
52
-
262
+
53
- Serial.print(" ");
263
+ Serial.print(" ");
54
-
264
+
55
- printFormattedFloat(humidityMostAccurate, 2);
265
+ printFormattedFloat(humidityMostAccurate, 2);
56
-
266
+
57
- Serial.print(" ");
267
+ Serial.print(" ");
58
-
268
+
59
- printFormattedFloat(pressureMostAccurate, 2);
269
+ printFormattedFloat(pressureMostAccurate, 2);
60
-
270
+
61
- Serial.println();
271
+ Serial.println();
272
+
62
-
273
+ }
274
+
275
+
276
+
277
+ // ここにLEDの変数を追加しました。
278
+
63
- int ledPin1;
279
+ int ledPin1;
64
-
280
+
65
- int ledPin2;
281
+ int ledPin2;
66
-
282
+
67
- int ledPin3;
283
+ int ledPin3;
68
-
69
- }
70
-
71
-
72
-
73
-
74
284
 
75
285
 
76
286
 
@@ -84,31 +294,29 @@
84
294
 
85
295
  {
86
296
 
87
- Wire.begin();
297
+ Wire.begin();
88
-
298
+
89
- Serial.begin(9600);
299
+ Serial.begin(9600);
90
-
300
+
91
- pinMode(16,INPUT);
301
+ pinMode(16,INPUT);
92
-
302
+
93
- pinMode(ledPin1,OUTPUT);
303
+ pinMode(ledPin1,OUTPUT);
94
-
304
+
95
- pinMode(ledPin2,OUTPUT);
305
+ pinMode(ledPin2,OUTPUT);
96
-
306
+
97
- pinMode(ledPin3,OUTPUT);
307
+ pinMode(ledPin3,OUTPUT);
98
-
308
+
99
- digitalWrite(17,0);
309
+ digitalWrite(17,0);
310
+
311
+
312
+
100
-
313
+ // それぞれの番号の場所に刺す様にしました。
101
-
102
-
314
+
103
- ledPin1=9;
315
+ ledPin1=9;
104
-
316
+
105
- ledPin2=6;
317
+ ledPin2=6;
106
-
318
+
107
- ledPin3=3;
319
+ ledPin3=3;
108
-
109
-
110
-
111
-
112
320
 
113
321
  }
114
322
 
@@ -120,152 +328,218 @@
120
328
 
121
329
  {
122
330
 
123
- uint8_t chipID;
124
-
125
- chipID = BME280.readChipId();
126
-
127
- Serial.print("ChipID = 0x");
128
-
129
- Serial.print(chipID, HEX);
130
-
131
-
132
-
133
- // need to read the NVM compensation parameters
134
-
135
- BME280.readCompensationParams();
136
-
137
-
138
-
139
- BME280.writeOversamplingPressure(os1x);
140
-
141
- BME280.writeOversamplingTemperature(os1x);
142
-
143
- BME280.writeOversamplingHumidity(os1x);
144
-
145
-
146
-
147
- BME280.writeMode(smForced);
148
-
149
- while (BME280.isMeasuring()) {
150
-
151
- Serial.println("Measuring...");
152
-
153
- delay(50);
154
-
155
- }
156
-
157
- Serial.println("Done!");
158
-
159
- // read out the data - must do this before calling the getxxxxx routines
160
-
161
- BME280.readMeasurements();
162
-
163
- Serial.print("Temp=");
164
-
165
- Serial.println(BME280.getTemperature()); // must get temp first
166
-
167
- Serial.print("Humidity=");
168
-
169
- Serial.println(BME280.getHumidity());
170
-
171
- Serial.print("Pressure=");
172
-
173
- Serial.println(BME280.getPressure());
174
-
175
- Serial.print("PressureMoreAccurate=");
176
-
177
- Serial.println(BME280.getPressureMoreAccurate()); // use int64 calculcations
178
-
179
- Serial.print("TempMostAccurate=");
180
-
181
- Serial.println(BME280.getTemperatureMostAccurate()); // use double calculations
182
-
183
- Serial.print("HumidityMostAccurate=");
184
-
185
- Serial.println(BME280.getHumidityMostAccurate()); // use double calculations
186
-
187
- Serial.print("PressureMostAccurate=");
188
-
189
- Serial.println(BME280.getPressureMostAccurate()); // use double calculations
190
-
191
-
192
-
193
-
194
-
195
-
196
-
197
- if(temp>=20&&temp<25)
198
-
199
- {
200
-
201
- digitalWrite(ledPin1,1);
202
-
203
- delay(1000);
204
-
205
- digitalWrite(ledPin1,0);
206
-
207
- }
208
-
209
- else if(temp>=25&&temp<30)
210
-
211
- {
212
-
213
- digitalWrite(ledPin2,1);
214
-
215
- delay(1000);
216
-
217
- digitalWrite(ledPin2,0);
218
-
219
- }
220
-
221
- else if(temp>=30)
222
-
223
- {
224
-
225
- digitalWrite(ledPin3,1);
226
-
227
- delay(1000);
228
-
229
- digitalWrite(ledPin3,0);
230
-
231
- }
232
-
233
-
234
-
235
- // Example for "indoor navigation"
236
-
237
- // We'll switch into normal mode for regular automatic samples
238
-
239
-
240
-
241
- BME280.writeStandbyTime(tsb_0p5ms); // tsb = 0.5ms
242
-
243
- BME280.writeFilterCoefficient(fc_16); // IIR Filter coefficient 16
244
-
245
- BME280.writeOversamplingPressure(os16x); // pressure x16
246
-
247
- BME280.writeOversamplingTemperature(os2x); // temperature x2
248
-
249
- BME280.writeOversamplingHumidity(os1x); // humidity x1
250
-
251
- BME280.writeMode(smNormal);
252
-
253
-
254
-
255
- while (1) {
256
-
257
- while (BME280.isMeasuring()) {
258
-
259
- }
260
-
261
-
262
-
263
- // read out the data - must do this before calling the getxxxxx routines
264
-
265
- BME280.readMeasurements();
266
-
267
- printCompensatedMeasurements();
268
-
269
- delay(1000); // do this every 5 seconds
270
-
271
- }
331
+ uint8_t chipID;
332
+
333
+ chipID = BME280.readChipId();
334
+
335
+ Serial.print("ChipID = 0x");
336
+
337
+ Serial.print(chipID, HEX);
338
+
339
+
340
+
341
+ // need to read the NVM compensation parameters
342
+
343
+ BME280.readCompensationParams();
344
+
345
+
346
+
347
+ BME280.writeOversamplingPressure(os1x);
348
+
349
+ BME280.writeOversamplingTemperature(os1x);
350
+
351
+ BME280.writeOversamplingHumidity(os1x);
352
+
353
+
354
+
355
+ BME280.writeMode(smForced);
356
+
357
+ while (BME280.isMeasuring()) {
358
+
359
+ Serial.println("Measuring...");
360
+
361
+ delay(50);
362
+
363
+ }
364
+
365
+ Serial.println("Done!");
366
+
367
+ // read out the data - must do this before calling the getxxxxx routines
368
+
369
+ BME280.readMeasurements();
370
+
371
+ Serial.print("Temp=");
372
+
373
+ Serial.println(BME280.getTemperature()); // must get temp first
374
+
375
+ Serial.print("Humidity=");
376
+
377
+ Serial.println(BME280.getHumidity());
378
+
379
+ Serial.print("Pressure=");
380
+
381
+ Serial.println(BME280.getPressure());
382
+
383
+ Serial.print("PressureMoreAccurate=");
384
+
385
+ Serial.println(BME280.getPressureMoreAccurate()); // use int64 calculcations
386
+
387
+ Serial.print("TempMostAccurate=");
388
+
389
+ Serial.println(BME280.getTemperatureMostAccurate()); // use double calculations
390
+
391
+ Serial.print("HumidityMostAccurate=");
392
+
393
+ Serial.println(BME280.getHumidityMostAccurate()); // use double calculations
394
+
395
+ Serial.print("PressureMostAccurate=");
396
+
397
+ Serial.println(BME280.getPressureMostAccurate()); // use double calculations
398
+
399
+
400
+
401
+
402
+
403
+ // ここに変数を指定しました。
404
+
405
+ int tempe
406
+
407
+ tempe = BME280.getTemperature()
408
+
409
+
410
+
411
+ // ここにif文を追加しました。
412
+
413
+ if(tempe>=20&&tempe<25)
414
+
415
+ {
416
+
417
+ digitalWrite(ledPin1,1);
418
+
419
+ delay(1000);
420
+
421
+ digitalWrite(ledPin1,0);
422
+
423
+ }
424
+
425
+ else if(tempe>=25&&tempe<30)
426
+
427
+ {
428
+
429
+ digitalWrite(ledPin2,1);
430
+
431
+ delay(1000);
432
+
433
+ digitalWrite(ledPin2,0);
434
+
435
+ }
436
+
437
+ else if(tempe>=30)
438
+
439
+ {
440
+
441
+ digitalWrite(ledPin3,1);
442
+
443
+ delay(1000);
444
+
445
+ digitalWrite(ledPin3,0);
446
+
447
+ }
448
+
449
+
450
+
451
+ // Example for "indoor navigation"
452
+
453
+ // We'll switch into normal mode for regular automatic samples
454
+
455
+
456
+
457
+ BME280.writeStandbyTime(tsb_0p5ms); // tsb = 0.5ms
458
+
459
+ BME280.writeFilterCoefficient(fc_16); // IIR Filter coefficient 16
460
+
461
+ BME280.writeOversamplingPressure(os16x); // pressure x16
462
+
463
+ BME280.writeOversamplingTemperature(os2x); // temperature x2
464
+
465
+ BME280.writeOversamplingHumidity(os1x); // humidity x1
466
+
467
+ BME280.writeMode(smNormal);
468
+
469
+
470
+
471
+ while (1) {
472
+
473
+ while (BME280.isMeasuring()) {
474
+
475
+ }
476
+
477
+
478
+
479
+ // read out the data - must do this before calling the getxxxxx routines
480
+
481
+ BME280.readMeasurements();
482
+
483
+ printCompensatedMeasurements();
484
+
485
+ delay(1000); // do this every 5 seconds
486
+
487
+ }
488
+
489
+ }
490
+
491
+ ```
492
+
493
+
494
+
495
+ するとこの様なエラー文が表示されました。
496
+
497
+ > Arduino：1.8.5 (Mac OS X), ボード："Arduino Nano, ATmega328P"
498
+
499
+
500
+
501
+ In file included from /Users/KaishuYanagida/Desktop/sfc/おもちゃWS/bme280/bme280.ino:1:0:
502
+
503
+ sketch/BME280_MOD-1022.h:41:21: warning: extra tokens at end of #ifndef directive
504
+
505
+ #ifndef __BME280_MOD-1022_H
506
+
507
+ ^
508
+
509
+ sketch/BME280_MOD-1022.h:42:21: warning: ISO C99 requires whitespace after the macro name
510
+
511
+ #define __BME280_MOD-1022_H
512
+
513
+ ^
514
+
515
+ /Users/KaishuYanagida/Desktop/sfc/おもちゃWS/bme280/bme280.ino: In function 'void loop()':
516
+
517
+ bme280:94: error: expected initializer before 'tempe'
518
+
519
+ tempe = BME280.getTemperature()
520
+
521
+ ^
522
+
523
+ bme280:102: error: 'else' without a previous 'if'
524
+
525
+ else if(tempe>=25&&tempe<30)
526
+
527
+ ^
528
+
529
+ bme280:102: error: 'tempe' was not declared in this scope
530
+
531
+ else if(tempe>=25&&tempe<30)
532
+
533
+ ^
534
+
535
+ exit status 1
536
+
537
+ expected initializer before 'tempe'
538
+
539
+
540
+
541
+
542
+
543
+ 私がやりたいことは上にも書いた通り、BME280で取得した値によってLEDの出力を変えるというものです。
544
+
545
+ 至らない点が多いですが回答よろしくお願いします。