I got this for christmas last year and just started to play around with it, I've ran into a bump though, whenever I upload the example it gives me this error: sketch_jun11a.ino:4:19: error: notes.h: No such file or directory sketch_jun11a:7: error: 'RedBotMotors' does not name a type sketch_jun11a.ino: In function 'void loop()': sketch_jun11a:118: error: 'motors' was not declared in this scope sketch_jun11a:147: error: 'motors' was not declared in this scope sketch_jun11a:151: error: 'motors' was not declared in this scope sketch_jun11a:157: error: 'motors' was not declared in this scope sketch_jun11a:163: error: 'motors' was not declared in this scope sketch_jun11a:167: error: 'motors' was not declared in this scope sketch_jun11a.ino: In function 'void bump()': sketch_jun11a:176: error: 'motors' was not declared in this scope sketch_jun11a.ino: In function 'void horn()': sketch_jun11a:187: error: 'noteG5' was not declared in this scope sketch_jun11a:189: error: 'noteE5' was not declared in this scope sketch_jun11a:191: error: 'noteC5' was not declared in this scope sketch_jun11a:197: error: 'noteD5' was not declared in this scope sketch_jun11a:201: error: 'noteF5' was not declared in this scope If you could get back to me quickly that would be preferable

I seem to have a problem and I'm pretty sure I installed the library. sketch_jan03a.ino:5:19: error: notes.h: No such file or directory sketch_jan03a.ino: In function 'void horn()': sketch_jan03a:188: error: 'noteG5' was not declared in this scope sketch_jan03a:190: error: 'noteE5' was not declared in this scope sketch_jan03a:192: error: 'noteC5' was not declared in this scope sketch_jan03a:198: error: 'noteD5' was not declared in this scope sketch_jan03a:202: error: 'noteF5' was not declared in this scope

I am having trouble with the code listed below. My goal is to send a two-character command from the X-CTU app on my laptop that has an XBee connected to its USB port to my RedBot with an XBee installed. I have two Series 1 XBees and they are communicating with each other just fine. I see "RedBot waiting for command..." in my X-CTU terminal window when I press the reset button. When I type "st", I see "Stop command received...". Good so far.

As soon as it executes a motor function, I get a "RedBot waiting for command...", with the exception that motor.stop() seems to work as expected. If I enter "tr" (for turn right) or "tl" (for turn left), I don't get the "Received turn right command..." or "Received turn left command...". In the redbotForward() function I commented out the motor function and I get "Received forward command...". If I un-comment the motor command, I get "RedBot waiting for command..." I can't seem to figure out what the problem is. Anybody have any ideas?

include <RedBot.h>

RedBotMotor motor;

define FWDSPD 175

// Buffer to store incoming commands from serial port String inData = "";

void setup() { Serial.begin(9600); Serial.println("RedBot waiting for command..."); }

void loop() { while (Serial.available() > 0) { char charIn = Serial.read();

  if(charIn == 13) {
     if(inData == "gf") {
        redbotForward();
     } else if(inData == "st") {
        redbotStop();
     } else if(inData == "tr") {
        redbotTurnRight();
     } else if(inData == "tl") {
        redbotTurnLeft();
     } else {
        Serial.println("Command not recognized...");
     }
     inData = ""; // Clear received buffer
  } else {
     inData += charIn; 
  }

} }

void redbotStop() { Serial.println("Received stop command..."); motor.stop(); }

void redbotForward() { Serial.println("Received forward command..."); // motor.drive(FWDSPD); }

void redbotTurnRight() { Serial.println("Received turn right command..."); motor.rightDrive(FWDSPD); }

void redbotTurnLeft() { Serial.println("Received turn left command..."); motor.leftDrive(FWDSPD); }

I got this error can anyone help, fast please. Library_Test:39: error: 'RedBotMotor' does not name a type Library_Test:43: error: 'RedBotAccel' does not name a type Library_Test:46: error: 'RedBotEncoder' does not name a type Library_Test:51: error: 'RedBotSensor' does not name a type Library_Test:52: error: 'RedBotSensor' does not name a type Library_Test:57: error: 'RedBotBumper' does not name a type Library_Test:58: error: 'RedBotBumper' does not name a type Library_Test:65: error: 'RedBotSoftwareSerial' does not name a type Library_Test.ino: In function 'void setup()': Library_Test:101: error: 'swsp' was not declared in this scope Library_Test.ino: In function 'void loop()': Library_Test:118: error: 'xl' was not declared in this scope Library_Test:130: error: 'encoder' was not declared in this scope Library_Test:130: error: 'BOTH' was not declared in this scope Library_Test:134: error: 'swsp' was not declared in this scope Library_Test:134: error: 'encoder' was not declared in this scope Library_Test:134: error: 'RIGHT' was not declared in this scope Library_Test:150: error: 'motors' was not declared in this scope Library_Test:179: error: 'lSen' was not declared in this scope Library_Test:179: error: 'rSen' was not declared in this scope Library_Test:179: error: 'motors' was not declared in this scope Library_Test:181: error: 'rSen' was not declared in this scope Library_Test:183: error: 'motors' was not declared in this scope Library_Test:187: error: 'lSen' was not declared in this scope Library_Test:189: error: 'motors' was not declared in this scope Library_Test:193: error: 'lSen' was not declared in this scope Library_Test:193: error: 'rSen' was not declared in this scope Library_Test:195: error: 'motors' was not declared in this scope Library_Test:199: error: 'motors' was not declared in this scope Library_Test.ino: In function 'void bump()': Library_Test:208: error: 'motors' was not declared in this scop

Hi, I was able to run the first example that simply drives the robot forward, stops a little and forward again. However I noticed the two motors do not rotate at the same speed, thus making the robot always turning to one side. Is there a way to fix this? Thank you in advance.

Hello, I downloaded and imported the RedBot-Master Library, but ran into the following error when compiling "redbot_first_robot" example:

Shalls_first_robot:25: error: 'RedBotMotor' does not name a type Shalls_first_robot.ino: In function 'void loop()': Shalls_first_robot:41: error: 'motor' was not declared in this scope

I'm pretty sure I have imported the library, it shows up at the bottom in the menu Sketch->ImportLibrary.

Any suggestions? Thank you in advance.

hello im new at robotics and i would like some help. we are trying to get the redbot to move! im ten years old and every sketch i upload has errors. can anybody suggest anything?

Drive control code does not look right for Case #4.

// Case 4: both sensors see dark

Unless I am missing something (which is very possible), I think Case #4 should be moved up in front of Case #2. As it stands now, Case#4 will never be reached because at least Case 2 or 3 will be met first.

Drive control code does not look right for step #4. Unless I am missing something (which is very possible), I think Case #4 should be moved up in front of Case #2. As it stands now, Case#4 will never be reached because at least Case 2 or 3 will be met first.

if (!bumped) { // Line following code: turn away from any sensor that is above the line // threshold. // Case 1: both white. Drive forward! if (lSen.read() < bgLevel && rSen.read() < bgLevel) motors.drive(100); // Case 2: right sensor is on black. Must recenter. if (rSen.read() > lineLevel) { motors.rightDrive(-100); motors.leftBrake(); } // Case 3: left sensor is on black. Must recenter. if (lSen.read() > lineLevel) { motors.leftDrive(-100); motors.rightBrake(); } // Case 4: both sensors see dark if (lSen.read() > lineLevel && rSen.read() >lineLevel) { motors.leftDrive(-100); motors.rightDrive(-100); } } else motors.brake();

The 404 error for https://github.com/sparkfun/RedBot/tree/master/Arduino/RedBot has returned!

How about adding a hall effect switch to the robot? We at UNB often use line following robots (following a black electrical tape) and embed a magnet at the end of the track. Detection of the magnet can be used to either inform the robot that it has reached a "dead end" of a maze or to actuate a motor or servo to perform a function. We use it to shoot a dart gun.

I get a 404 from https://github.com/sparkfun/RedBot/tree/master/Arduino/RedBot. https://github.com/sparkfun/RedBot works fine.

How can I connect Nintendo WII Nunchuk to RedBot?

I can connect it to Arduino UNO. But RedBot is difficult. Anybody knows?

When I upload Demo program to a Rebot, I encountered an error.

Binary sketch size: 5,814 bytes (of a 32,256 byte maximum) processing.app.SerialNotFoundException: Serial port 'COM3' not found. Did you select the right one from the Tools > Serial Port menu? at processing.app.Serial.<init>(Serial.java:191) at processing.app.Serial.<init>(Serial.java:77) at processing.app.debug.Uploader.flushSerialBuffer(Uploader.java:77) at processing.app.debug.AvrdudeUploader.uploadViaBootloader(AvrdudeUploader.java:175) at processing.app.debug.AvrdudeUploader.uploadUsingPreferences(AvrdudeUploader.java:67) at processing.app.Sketch.upload(Sketch.java:1671) at processing.app.Sketch.exportApplet(Sketch.java:1627) at processing.app.Sketch.exportApplet(Sketch.java:1599) at processing.app.Editor$DefaultExportHandler.run(Editor.java:2380) at java.lang.Thread.run(Thread.java:619)

First, thanks for a great kit; my 10-year-old son and I had a great time putting it together and getting it to do what we wanted. We're still using it as yet another Arduino platform for experimenting.

We found that we had to reverse the wiring on one of the motors to compensate for a possible misinstallation. The motors initially turned opposite each other; reversing the wire made them turn in sync. No problem.

Most important for our success was the contrast of the surface and the line we asked the robot to follow. We started with the dark line inset in our wood flooring. Despite no end of variation on the dark level and motor speeds the RedBot would only go round in circles, presumably looking for a dark-enough line! We switched to black marker on off-white paper, then bluish-black paint on off-white paper with a little better result. The RedBot wanted to follow the lines but kept getting off track. Finally we settled on black electrical tape cut in half lengthwise on white foam board (the kind used in science fair posters) and the RedBot performed like a champ, hugging the lines with only occasionally having to spin around to relocate a line at a cross or triple point. A dark level of 120 and speeds of 115 and 125 for search and go made the Bot act like a bloodhound on a strong scent. Yay! It works!

We have plans for this RedBot including adding a better bump response, some signal lights, and IR remote control. It's a terrific platform for the budding (10-year-old) roboticist.

The line sensors don't seem to want to follow the line. When I hooked the sketch up to Serial Monitor and printed out the values from the bot's line sensor it get: rLevel = rSen.read(); lLevel = lSen.read(); cLevel = cSen.read();

I get about 940 when there is no black line and it is just sitting on a white poster board. When I move the line sensor directly under a black sharpie line or black electrical tape, I about 980. This is true even when very close. If I put my figure over the sensor I get about 300. It seems like the sensor just isn't giving much feedback when it is on a black line. Any help would be appreciated.

My robot just seems to be going straight and not detecting any lines. I've uploaded the sketch to the bot but I can't seem to get it to work. Are there any other steps i'm missing? I've downloaded the library and uploaded the sketch to ‘Arduino Mini w/ATMega328’. Nothing seems to work for me

I have added the library correctly, however unsure what board to select from tools menu. I would have assumed the library would give me the RedBot board or similar, but i'm not seeing that anywhere. I tried a similar board with same chip (Uno) which appears to work uploading, but never runs or gives serial feedback.

Anyone having problems getting this to follow a line? I put a piece of cardboard down and took a marker and made a 10" circle with a black marker. It detects the line and starts to follow it, but it drive too fast to keep on the line. I’ve slowed it down as much as I could to keep above the stall voltage. Also one of the motor shafts is cracked. I didn’t notice it until I put it together, and it doesn’t seem to be affecting performance as far as I can tell.

I followed the instructions as you mentioned but there is still error

Demo1:65: error: 'followNoCal' was not declared in this scope

when I uploaded Demo.ino into the mainboard of Redbot, there was error message,

Demo:24: error: 'RedBotMotor' does not name a type Demo:29: error: 'RedBotSensor' does not name a type Demo:30: error: 'RedBotSensor' does not name a type Demo:31: error: 'RedBotSensor' does not name a type Demo:35: error: 'RedBotAccel' does not name a type Demo.ino: In function 'void setup()': Demo:49: error: 'xl' was not declared in this scope Demo.ino: In function 'void loop()': Demo:61: error: 'xl' was not declared in this scope Demo:65: error: 'followNoCal' was not declared in this scope

Please explain how to solve it. Thanks.