ive been reading up and i understand that this means it returned 1 error but i'm not sure how to locate it on my own.i'm hoping someone with more experience can help
int sensor_pin=A0;
int output_value;
const int motorIn1 = 9;
const int motorIn2 = 10;
char val;
void setup() {
Serial.begin(9600);
{
pinMode(motorIn1,OUTPUT);
pinMode(motorIn2,OUTPUT);
}
}
void loop() {
output_value= analogRead(sensor_pin);
output_value= map(output_value,
550,0,0,100);
if(Serial.available())
{
val =Serial.read();
}
if( val == 'A' )
{
analogWrite(motorIn1,400);
}
if( val == 'B' )
{
analogWrite(motorIn1,0);
}
if(output_value < 30)
{
analogWrite(motorIn1,400);
}
}
smart_plant_water2.ino (561 Bytes)
I just tried the code configured for an Uno and it had no errors compiling. Can you post your exact error?
Arduino: 1.8.3 (Mac OS X), Board: "Arduino/Genuino Uno"
/Applications/Arduino.app/Contents/Java/arduino-builder -dump-prefs -logger=machine -hardware /Applications/Arduino.app/Contents/Java/hardware -tools /Applications/Arduino.app/Contents/Java/tools-builder -tools /Applications/Arduino.app/Contents/Java/hardware/tools/avr -built-in-libraries /Applications/Arduino.app/Contents/Java/libraries -libraries /Users/chrisfisher/Documents/Arduino/libraries -fqbn=arduino:avr:uno -ide-version=10803 -build-path /var/folders/vq/93q1xgpx4v30m70p7zmzhn_w0000gn/T/arduino_build_378849 -warnings=none -build-cache /var/folders/vq/93q1xgpx4v30m70p7zmzhn_w0000gn/T/arduino_cache_147696 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.avr-gcc.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -prefs=runtime.tools.arduinoOTA.path=/Applications/Arduino.app/Contents/Java/hardware/tools/avr -verbose /Users/chrisfisher/Documents/Arduino/smart_plant_water2/smart_plant_water2.ino
collect2: error: ld returned 1 exit status
Looks like this has been asked before.
That reply was a while ago. If you happen to have the same older version, maybe try updating instead of downgrading the board. Works in v1.6.18 for me.
bDeters:asked before.
That reply was a while ago. If you happen to have the same older version, maybe try updating instead of downgrading the board. Works in v1.6.18 for me.
Yeah..... I had weird stuff like that happening when I was using an older version of arduino IDE ... like 1.6.5 or something on my win 8 system. And then.... after a heck of a lot of time trying to figure out the issue... I updated to 1.8 .... and magically everything was ok after that.
i've got 1.8.3. If i go online and verify it with arduino create i don't have a problem, but the downloaded software for arduino create don't work, it has an error when installing.
crash111f:
I wasn't talking about the IDE. The version number I was referring to was the board profile version as shown in that post I linked. I was using v1.6.18 but the latest is v1.6.19 for the Uno.
i have the latest version. i even went into board mngr and tried downloading some of the older versions but none of them worked.
pert
July 9, 2017, 3:08pm
9
Try Arduino IDE 1.6.9 with Arduino AVR Boards 1.6.11