Robojack

Arduino Loop Increment Issue Fix

@Athena, I am currently running the following code on an Arduino Mega to adjust a variable iteratively: cpp float psudoActCrs = 90.7550; float actualCourse = 92; while (true) { if (psudoActCrs actualCourse) { psudoActCrs -= 0.1; } Serial.print("psudoActCrs: "); Serial.println(psudoActCrs, 4); Serial.print("actualCourse: ");...

Improving IR Sensor Efficiency Javascript

Hi @Athena, I am working on repeatedly pulsing a Sharp IR sensor using JavaScript within my ARC project. Here's a snippet of my current script: javascript var increment = 3; var irValue = 50; var lowIR = ADC.get(2); sleep(10); // IR THRESHOLD FOR A HIT if (lowIR <= irValue) { missCount = 0; cycleCount++; kick = false; if (scanDir == 0) { negHit...

DSSERVO 3225 Servo Compatibility Inquiry

Hi @Athena, I am curious about the compatibility of a 25 kg DSSERVO 3225 digital servo, which operates at 4.8 to 6.8 volts DC, with my EZBv4. Additionally, I'm considering placing a 10F capacitor between the positive and negative wires. Would this assist or interfere with the servo's operation when using the EZBv4? Thank you, Jack

Troubleshooting Rovers IR Sensor Issue

Hi @Athena, I need some assistance troubleshooting an issue I've encountered with my robot. The setup involves a rover powered by four stepper motors, each controlled by a motor driver board connected to an Arduino Mega 2560. The Arduino handles motor control using PWM, while an EZ-B v4 is tasked with executing scripts to synchronize an IR sensor...

UART Communication Between EZ-B And Arduino

Hi @Athena, I am seeking assistance for a project where I need to establish UART communication between an EZ-Robot EZ-B v4 controller and an Arduino Mega 2560. My objective is to send and receive integer values in the range of 0 to 180 between these two devices. On the EZ-B v4 side, I will be utilizing JavaScript within the Synthiam ARC...

Improving Digital Write Efficiency Arduino

Hi , I am working on increasing the efficiency of my digital write statements in C++ on an Arduino Mega 2560. I've read that the digitalWriteFast.h library can help with this. Here is my current digital write statement in C++: cpp #include desiredCourseScaled = round(desiredCourse); if (desiredCourseScaled != lastDesiredCourseScaled) { int byte0 =...

Help With Sorting Array Implementation

Hello @Athena, I'm currently working on a project where I need to sort values and utilize the lowest value within my script using Synthiam ARC. I believe that utilizing an array in JavaScript is the appropriate approach. Although I have researched JavaScript commands and sorting techniques, I would appreciate some assistance to jumpstart my...

Assistance With C++ Map Function

Hi @Athena, I am experiencing some difficulty with the implementation of the map function in C++. Could you help me review the following code snippet to determine if it is correct? The code is designed to adjust the speed of two stepper motors based on a variable, psudoDesCrsDiffSum, which can take values from -500 to 500. cpp // leftSpeed = speed...

Triggering UART At Travel Milestones

Hello @Athena, I'm working on a project using an Arduino Mega 2560 to control stepper motors and need help with setting up recurring events that trigger at specific points during the movement. Specifically, I want to send a signal when the motors have traveled 33% and 66% of the total path endpoint distance. Here's a code snippet representing the...

Switching Voltage For Sharp Sensor

Hi @Athena, I have a question about powering the Sharp IR Distance Measuring Sensor #GP2Y0A02YK0F, which I am using in my rover project. I've been experimenting with this sensor, and it has worked very well for object detection when powered with 5V DC. During my tests, I found that for specific tasks, the sensor needs to detect a reflector instead...

Sending Float Value Via UART

Hello @Athena, I would like some assistance with sending a floating-point value via UART from an EZ-B v4 using JavaScript to an Arduino Mega using C++. Here's a snippet of my current code: EZ-B v4 JavaScript Code: js UART.initHardwareUart(0, 9600); var actualCourse = 91.55; // Need an appropriate method to send the floating-point value correctly...

Sending Larger Variables Via UART

Hello @Athena, I am seeking guidance on how to effectively communicate larger variable values from Synthiam ARC to an Arduino via UART. Previously, I worked with smaller values using the following variable configurations: plaintext setVar("$pathTotalDistance", 2450); // Set value in steps setVar("$pathEndpointDistance", 1895);...

Inconsistent UART Data Transfer Issue

Hello , I am experiencing inconsistent UART data transfer from the EZ-B v4 to an Arduino Mega 2560. Single-byte transfers are very consistent between these two devices, but when I attempt to transfer 8 bytes, the reliability decreases significantly. I have attached samples of JavaScript and C++ code that I am using. Could you please examine this...

Controlling Multiple Stepper Motors Using Arduino Accelstepper Library

Hello , I am currently experiencing difficulties while attempting to use the Arduino AccelStepper Library with my robot. My setup includes small stepper motors driven by DRV8825 drivers, all controlled by an Arduino Mega. I am trying to enhance the functionality by incorporating motor acceleration and deceleration. However, I am unable to get the...

How To Implement A Ramp Function To A Motor Value Derived From A Map Function.

Hello @Athena, I am experiencing difficulties with implementing a ramp function for motor values that are determined using a map function in my C++ code. Could you please review the attached code and provide guidance on why it won't compile? The variables leftSpeed and rightSpeed are the values produced by the map function. Thank you, Jack cpp void...

UART Communication Between And EZB4 And An Arduino

Hello , I am experiencing unreliable transmission of UART data from my EZ-B v4 to an Arduino MEGA. It seems that the Arduino is not consistently reading the data as available. Sometimes the transmission works, and other times it does not. I have double-checked the wiring connections. Could you please review the JavaScript and C++ code for any...

Wheel Counting With Arduino

Hello @Athena, Could you please review the following code that I am using on my Arduino Mega 2560 to count motor pulses? I am encountering an issue with the output on the Serial Monitor. cpp int encoderValue_A = 0; int encoderValue_B = 0; void setup() { Serial.begin(9600); pinMode(2, INPUT); pinMode(3, INPUT);...

Wheel Encoder Skill

Hi Athena, I am experiencing difficulty loading the necessary library onto my Arduino Uno to ensure compatibility with the Wheel Encoder Counter Skill in Synthiam ARC. I have successfully loaded the "Servo.h" library, but I am unable to find the "SendOnlySoftwareSerial.h" library. Could you please guide me on where to locate the...

Control Command Scriptstartwait In BLOCKLY Prevents The Script From Stopping.

I'm using BLOCKLY to Control Command ScriptStartWait a certain script.  It appears that once the called for script starts it cannot shut down properly.  This only happens when using Control Command ScriptStartWait.  All other times the called for script starts and runs as expected.  This is a new phenomenon and does not occur with a previous...

Assistance With Slow Scripts

I am running 7 scripts at once.  Each is looping and looking for a variable that is generated by other scripts.  Once these variables are triggered,  each script runs a series of commands and returns back to looping. Some of my scripts have nested loops operating inside of other loops and break out as necessary. I am using FOREVER LOOPS because...

Timer Script Help

Hi Everyone, I've searched for several hours now for a solution to my problem, all to no avail. I need to start an internal timer during the normal running of a script. The timer will be started with a variable going TRUE or a servo position reached. It will be stopped in the same manner. It cannot be a typical COUNT function but must be actual...

Control Command, Resume

I am having difficulty with Command Control Resume. Can someone please provide an example in blockly how it could be used? I seem to be using START, STOP, WAIT correctly but if you have any additional info on these also I would very much appreciate it. Thanks!

4-1 Sensor Noise

Hi Everyone, I am attempting to use the 4-1 Sensor in my Roli project. The 4-1 like all similar sensors I am familiar with outputs a lot of noise. I am using a script that gets multiple samples and then averages the results. This cuts down the erratic nature of the data but degrades the ability to sense a deviation in the process. Any help here?...

Hbridge

I have a Roli HBridge that has stopped working Forward on the Right Tread only. I have checked all wiring on EZB4 and the Hbridge. After a short run(3-4) seconds in Forward the Heat Sinked IC becomes very hot, enough to burn the skin. The Hbridge intermittently cuts in and out during this time. Any suggestions? Thankyou

H Bridge Pwm Movement Control

This question is about the HBridge PWM Movement Control on the most recent version of ARC software. I have a Roli and have determined that the FWD AFT LEFT RIGHT Arrows function as they should but the "Speed Sliders" do not. Specifically the Speed Sliders operate the opposite track. When the LEFT slider is moved the Right Track speed...