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  • Unsolved Prop freezing with stepper

    Hi Everyone.

    Solved a problem with noise in the prop board a while ago. Now to my next problem

    The problem i’m having is that the prop seams to freeze up when i’m running the stepper. Or better to say the stepper goes on by it self and the prop waits for it to be finished with it’s process.

    I tried to narrow it down by launching the stepper process on a separate cog and the in the main have a repeat loop looking for a button. It “felt” the button but the stepper just went on and on. And using a cogstop for that cog does not matter.

    some of that code:

    Code:

  • Hi. Writing a code for my bot and I ran into this problem... The following is a piece of my code for moving the stepper motors. Code : STEPS macro number movlw number movwf STEPCOUNT endm STEPPER macro dir movlw dir movwf PORTB WAIT .100 DECF STEPCOUNT,1 btfsc STATUS,Z goto loop endm and to move 10 steps forward: Code : STEPS .10 forward STEPPER 0x88 STEPPER 0x9A STEPPER 0x12 STEPPER 0x56 STEPPER 0x44 STEPPER 0x65 STEPPER 0x21 STEPPER 0xA9 goto forward The problem is, that how can ...
    STEPPER EQU P1 KEY EQU P2 KEY_1 EQU P2.0 KEY_2 EQU P2.1 KEY_3 EQU P2.2 KEY_4 EQU P2.3 Org 0h Ljmp Main Org 0200h Main: Mov A, #00h Mov Stepper, A Mov Key, A Setb Key_1 Mov A, Key Jnz Ant_clk clk_wise:mov Stepper, #0ch Acall Delay_1ms Mov Stepper, #06h Acall Delay_1ms Mov Stepper, #03h Acall Delay_1ms Mov Stepper, #09h Acall Delay_1ms Sjmp Main Ant_clk:mov Stepper, #09h Acall Delay_1ms Mov Stepper, #03h Acall Delay_1ms Mov Stepper, #06h Acall Delay_1ms Mov Stepper, #0ch Acall Delay_1ms Ret DELAY_1MS: MOV R6, #231D ; 1 MILLISECONDS DELAY GOTO: NOP NOP DJNZ R6, GOTO RET i have problem in this code. the ant_clk loop runs only once on next time program enters to the ant_clk loop but its not completing the loop. the program is returing to the line one of the program after desplaying ...
    I am in the process of sourcing parts for a LM8UU Prusa Mendel and I was wondering if someone could recommend a place to order my Nema 17 stepper motors and stepper driver boards for my Sanguino I got coming. For both, the Wiki links to a sites outside of the US. I am more concerned about getting the right stepper motors because it seems there are two types of NEMA 17 stepper motors (high and low voltage). Thanks in advance. I'm looking at these right now: Nema 17 Stepper Motors A4988 Stepper Motor Driver Carrier or StepStick BE
    I need to control the direction and start stop of a stepper using momentary type switches. i.e. Press button 1 and stepper moves forward. Release button 1 and stepper stops immediately. Same with button 2, in reverse. My current code seems to accumulate step requests in the loop so the motor runs for a while after I have released button in order to empty it's backlog Is there a way to interrupt the execution of the step requests so that I get an immediate stop or another way of doing this so that I get the above??
    Hi, MY IDEA : I am doing a project for students on microstepping using Stepper Motor.I want the stepper motor to turn around 1degree (i.e 0.7 degree or 1.8 degree). MY PROBLEM AND QUESTIONS : 1) Can i implement the above said idea using any stepper motor or should i use any specific stepper motor ? 2) If i am supposed to use any specific stepper motor for this purpose can u please ,guide me with the name and specifications of the stepper motor ? 3) what is stepper motor driver?should i buy them seperately or will be in the stepper motor itself? 4) Is stepper motor ...
    I have just made one circuit for the Unipolar stepper motor using the L293B driver chip with arduino using the following code #include ltStepper.hgt // steps value is 360 / degree angle of motor #define STEPS 200 // create a stepper object on pins 4, 5, 6 and 7 Stepper stepper(STEPS, 4, 5, 6, 7); void setup() { } void loop() { stepper.setSpeed(60); stepper.step(200); delay(100); stepper.setSpeed(20); stepper.step(-50); delay(100); } However i intend to control five stepper ...
    I am having trouble making a serial connection between two props. I am only using one wire connected to TX pin of primary prop and to the RX pin of secondary prop (both pin 27) with both running FullDuplexSerialPlus as ToSecondary and FromPrimary. On Primary ToSecondary.start(-1,27,0,57600) On Secondary FromPrimary.start(27,-1,0,57600) When button is pressed on Primary it sends ToSecondary.dec(1) In a repeat loop on Secondary: Code:
    My assignment is to make the stepper motor move without the use of the stepper library. Is this how you approach that? void setup() { // set the speed of the motor to 120 RPMs stepper.setSpeed(120); } void loop() { stepper.step(96); //on revolution delay(2000); //wait 2 seconds }
    I just opened the Prop, Prop clip, read the manual through, circuits etc. and read quite a lot, what I could find on these forums. So when the Prop boots up, Cog0 looks for a PC connection first. If it's available, it'll load the program into memory. This mean the EEPROM is optional as long as I have a good PC connection running Propeller Tool right? Is there anything I need to do to terminate those open pins on the Prop then? I'll have more, don't worry
    Hello. I'm a beginner. I have a Arduino NG and a Motorshield on top of it. First problem is the reset button. Continuity check was successful but the motorshield reset button doesn't do anything. Second problem is my stepper motor (28BYJ-48) which only vibrates but does not turn! It get's warm when there's no sketch running. The motorshield is powered with 9V DC and I probably didn't have the jumper in place in the beginning..... I do still have current on the 5 pins going to the stepper motor. As mentioned it just vibrates.... Thanks for helping
    Is the Quickstart the cheapest Prop board being sold? I think it's $25 from Parallax, more through other vendors. The new FTDI FT231 chip has me thinking about how cheap a Prop board could be... I also noticed yesterday that Digikey has Props for $5 in qty. 100. Haven't gone through the numbers extensively, but it seems that very basic Prop board could be made for ~$10 in parts... $5 Prop $2 FT231X $1 USB connector $1 EEPROM $1 Crystal + passives Add in a dollar or two for the PCB and maybe you have something that can be sold for $15?
    I have an Ardumoto shield that I am planning use to run spark fun stepper SM-42BYG011-25. I'm not clear on how to define the pins for the stepper function. Stepper(steps, pin1, pin2, pin3, pin4) The Ardumoto is using pins 3,11,12,13 but I don't if the order of definition matters. If any one has code for running a stepper from the Ardumoto that would be very helpfull
    Hi everybody...new poster here I'm trying to control a unipolar stepper motor but I'm having some problems. The code I designed only makes the motor move a certain number of steps and then it returns back to the posotion it started at. I did a simulation of my circuit on ISIS Proteus and it does work but not on breadboard. Any help will be appreciated I have attached the schematic of my circuit and I will provide the code. Other information: the driver being used is an ULN2803 and the step angle is 1.8 degrees. Code: #include ltmega16.hgt #include ltstdio.hgt ...
    Now, first of all, i don't know if this even i posible.. But i have this stepper motor, that im trying to run with an L298N driver. I have connected it this way on the L298N: OUT1 -gt Stepper wire 1 VS -gt 24v + ENA -gt 5v (arduino) GND -gt 24v - CSA -gt Arduino GND OUT2 -gt Stepper wire 2 IN1 -gt Digital pin 2 IN2 -gt Digital pin 3 VLS -gt 5v (arduino) ENB -gt 5v (arduino) OUT3 -gt Stepper wire 3 CSB -gt Arduino GND IN3 -gt Digital pin 4 IN4 ...
    Hey everyone, I'm using the stepper driver V1.2 with Keling KL23H51-24-08B steppers. I've been having a hard time getting the steppers to run smoothly. I've followed the instructions on the wiki, and have wired everything up correctly (to the best of my knowledge...), but whenever I run the stepper tester program, the steppers won't rotate smoothly - they just vibrate. I tried swapping the polarity on one of the coils (switched A with , but to no avail. At first I thought the issue was because we made our own circuit boards, so I purchased a stepper driver kit from ...
    I'm trying to get a stepper motor to replicate the movement of a second hand on a clock. so i have wired up a unipolar stepper as in the two wire diagram on : http://arduino.cc/en/Reference/StepperUnipolarCircuit except without the dioide back into the com pin I've also done a simple piece of code to get it to tick. my problem is that the ULN2003A I'm using gets very hot quickly and then starts to fail. I'm running the stepper on the VIN power (9v from mains or battery, both tried). is it likely to be the lack of diode causing this?
    Hi maybe you can help me i am using this code: Code: // Stepper #include ltStepper.hgt // steps value is 360 / degree angle of motor #define STEPS 200 // create a object on pins 6 and 7 Stepper stepper(STEPS, 6,7); void setup() { } void loop() { ///// Turn the stepper 200 steps with a 1 sec delay between steps at 60rpm /// then reverse the direction ...
    Im new to stepper motors and this question may have been asked and answered already. I have a stepper that steps at 1.8 deg. If I want to move it 90 deg with the stepper library i give it a value of 50. As I understand this is a integer can I feed the it a float value to move the stepper a fraction of a deg?
    Apologies if this topic has been covered, but I couldn't find quite what I was looking for. Basically what I'm trying to do is control a stepper motor's speed and direction with a potentiometer. When the pot is in the middle, the stepper should be stationary, and either extreme will dive the stepper at speed in that direction. I know a little about electronics, but programming an Arduino is not something I've done before. Looking through various websites, I've found a curious thing called stepper shields. Are these required to drive a stepper, or just useful? I know I need to ...