Why my light meter's values are blank on Arduino Serial Monitor?
I tried to represent the values of TSL 2591 Adafruit light sensor on my Arduino Serial Monitor, but for some reason, I could not do that. The Arduino Serial Monitor just enters some blank values and scrolls down.
Here is the code:
uint16_t x = tsl.getLuminosity(TSL2591_VISIBLE);
y = float(tsl.getLuminosity(TSL2591_VISIBLE));
z = (y, DEC);
Serial.write((byte)z);
x, y, and z are floats initially.
serial sensors
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
migrated from stackoverflow.com Nov 15 '18 at 13:55
This question came from our site for professional and enthusiast programmers.
add a comment |
I tried to represent the values of TSL 2591 Adafruit light sensor on my Arduino Serial Monitor, but for some reason, I could not do that. The Arduino Serial Monitor just enters some blank values and scrolls down.
Here is the code:
uint16_t x = tsl.getLuminosity(TSL2591_VISIBLE);
y = float(tsl.getLuminosity(TSL2591_VISIBLE));
z = (y, DEC);
Serial.write((byte)z);
x, y, and z are floats initially.
serial sensors
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
migrated from stackoverflow.com Nov 15 '18 at 13:55
This question came from our site for professional and enthusiast programmers.
Did you enabled the serial communication on arduino by usingSerial.begin(9600)?
– svtag
Nov 15 '18 at 9:22
1
What'sz = (y, DEC);supposed to do?
– Gerben
Nov 15 '18 at 16:18
Yes, I enabled it. What if I change 9600 to another value? @svtag
– Асмир Абдимажитов
Nov 16 '18 at 9:46
I think it converts the values to decimals @Gerben
– Асмир Абдимажитов
Nov 16 '18 at 9:47
add a comment |
I tried to represent the values of TSL 2591 Adafruit light sensor on my Arduino Serial Monitor, but for some reason, I could not do that. The Arduino Serial Monitor just enters some blank values and scrolls down.
Here is the code:
uint16_t x = tsl.getLuminosity(TSL2591_VISIBLE);
y = float(tsl.getLuminosity(TSL2591_VISIBLE));
z = (y, DEC);
Serial.write((byte)z);
x, y, and z are floats initially.
serial sensors
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
I tried to represent the values of TSL 2591 Adafruit light sensor on my Arduino Serial Monitor, but for some reason, I could not do that. The Arduino Serial Monitor just enters some blank values and scrolls down.
Here is the code:
uint16_t x = tsl.getLuminosity(TSL2591_VISIBLE);
y = float(tsl.getLuminosity(TSL2591_VISIBLE));
z = (y, DEC);
Serial.write((byte)z);
x, y, and z are floats initially.
serial sensors
serial sensors
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
edited Nov 26 '18 at 14:52
gre_gor
1,51041225
1,51041225
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
asked Nov 15 '18 at 7:04
Асмир АбдимажитовАсмир Абдимажитов
31
31
migrated from stackoverflow.com Nov 15 '18 at 13:55
This question came from our site for professional and enthusiast programmers.
migrated from stackoverflow.com Nov 15 '18 at 13:55
This question came from our site for professional and enthusiast programmers.
Did you enabled the serial communication on arduino by usingSerial.begin(9600)?
– svtag
Nov 15 '18 at 9:22
1
What'sz = (y, DEC);supposed to do?
– Gerben
Nov 15 '18 at 16:18
Yes, I enabled it. What if I change 9600 to another value? @svtag
– Асмир Абдимажитов
Nov 16 '18 at 9:46
I think it converts the values to decimals @Gerben
– Асмир Абдимажитов
Nov 16 '18 at 9:47
add a comment |
Did you enabled the serial communication on arduino by usingSerial.begin(9600)?
– svtag
Nov 15 '18 at 9:22
1
What'sz = (y, DEC);supposed to do?
– Gerben
Nov 15 '18 at 16:18
Yes, I enabled it. What if I change 9600 to another value? @svtag
– Асмир Абдимажитов
Nov 16 '18 at 9:46
I think it converts the values to decimals @Gerben
– Асмир Абдимажитов
Nov 16 '18 at 9:47
Did you enabled the serial communication on arduino by using
Serial.begin(9600)?– svtag
Nov 15 '18 at 9:22
Did you enabled the serial communication on arduino by using
Serial.begin(9600)?– svtag
Nov 15 '18 at 9:22
1
1
What's
z = (y, DEC); supposed to do?– Gerben
Nov 15 '18 at 16:18
What's
z = (y, DEC); supposed to do?– Gerben
Nov 15 '18 at 16:18
Yes, I enabled it. What if I change 9600 to another value? @svtag
– Асмир Абдимажитов
Nov 16 '18 at 9:46
Yes, I enabled it. What if I change 9600 to another value? @svtag
– Асмир Абдимажитов
Nov 16 '18 at 9:46
I think it converts the values to decimals @Gerben
– Асмир Абдимажитов
Nov 16 '18 at 9:47
I think it converts the values to decimals @Gerben
– Асмир Абдимажитов
Nov 16 '18 at 9:47
add a comment |
1 Answer
1
active
oldest
votes
Use Serial.println(x); to print a number as text. Function write() sends the raw byte and Serial Monitor shows the character with that ASCII code, which is not valid or a not visible control character.
For the z = (y, DEC); from Wikipedia:
In the C and C++ programming languages, the comma operator (represented by the token ,) is a binary operator that evaluates its first operand and discards the result, and then evaluates the second operand and returns this value (and type).
so z is always 10 (value of constant DEC), which is ASCII code for the new line character
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
Comments are not for extended discussion; this conversation has been moved to chat.
– Majenko♦
Nov 16 '18 at 18:48
add a comment |
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1 Answer
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oldest
votes
Use Serial.println(x); to print a number as text. Function write() sends the raw byte and Serial Monitor shows the character with that ASCII code, which is not valid or a not visible control character.
For the z = (y, DEC); from Wikipedia:
In the C and C++ programming languages, the comma operator (represented by the token ,) is a binary operator that evaluates its first operand and discards the result, and then evaluates the second operand and returns this value (and type).
so z is always 10 (value of constant DEC), which is ASCII code for the new line character
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
Comments are not for extended discussion; this conversation has been moved to chat.
– Majenko♦
Nov 16 '18 at 18:48
add a comment |
Use Serial.println(x); to print a number as text. Function write() sends the raw byte and Serial Monitor shows the character with that ASCII code, which is not valid or a not visible control character.
For the z = (y, DEC); from Wikipedia:
In the C and C++ programming languages, the comma operator (represented by the token ,) is a binary operator that evaluates its first operand and discards the result, and then evaluates the second operand and returns this value (and type).
so z is always 10 (value of constant DEC), which is ASCII code for the new line character
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
Comments are not for extended discussion; this conversation has been moved to chat.
– Majenko♦
Nov 16 '18 at 18:48
add a comment |
Use Serial.println(x); to print a number as text. Function write() sends the raw byte and Serial Monitor shows the character with that ASCII code, which is not valid or a not visible control character.
For the z = (y, DEC); from Wikipedia:
In the C and C++ programming languages, the comma operator (represented by the token ,) is a binary operator that evaluates its first operand and discards the result, and then evaluates the second operand and returns this value (and type).
so z is always 10 (value of constant DEC), which is ASCII code for the new line character
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
Use Serial.println(x); to print a number as text. Function write() sends the raw byte and Serial Monitor shows the character with that ASCII code, which is not valid or a not visible control character.
For the z = (y, DEC); from Wikipedia:
In the C and C++ programming languages, the comma operator (represented by the token ,) is a binary operator that evaluates its first operand and discards the result, and then evaluates the second operand and returns this value (and type).
so z is always 10 (value of constant DEC), which is ASCII code for the new line character
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
edited Nov 16 '18 at 12:22
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
answered Nov 15 '18 at 10:14
JurajJuraj
7,5802927
7,5802927
Comments are not for extended discussion; this conversation has been moved to chat.
– Majenko♦
Nov 16 '18 at 18:48
add a comment |
Comments are not for extended discussion; this conversation has been moved to chat.
– Majenko♦
Nov 16 '18 at 18:48
Comments are not for extended discussion; this conversation has been moved to chat.
– Majenko♦
Nov 16 '18 at 18:48
Comments are not for extended discussion; this conversation has been moved to chat.
– Majenko♦
Nov 16 '18 at 18:48
add a comment |
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Did you enabled the serial communication on arduino by using
Serial.begin(9600)?– svtag
Nov 15 '18 at 9:22
1
What's
z = (y, DEC);supposed to do?– Gerben
Nov 15 '18 at 16:18
Yes, I enabled it. What if I change 9600 to another value? @svtag
– Асмир Абдимажитов
Nov 16 '18 at 9:46
I think it converts the values to decimals @Gerben
– Асмир Абдимажитов
Nov 16 '18 at 9:47