![]() If that does not help then you need to post the code that causes the smooth running. What happens if you use runSpeedToPosition() (i.e. Reverse default microstep mode functionĭigitalWrite(dir, HIGH) //Pull direction pin low to move "forward"įor(x= 1 x<300 x++) //Loop the forward stepping enough times for motion to be visibleĭigitalWrite(stp,HIGH) //Trigger one step forwardĭigitalWrite(stp,LOW) //Pull step pin low so it can be triggered againĪre you using micro-stepping for both tests? Reset Easy Driver pins to default states Serial.println("Invalid option entered.") User_input = Serial.read() //Read user input and trigger appropriate functionĭigitalWrite(EN, LOW) //Pull enable pin low to allow motor control Serial.begin(9600) //Open Serial connection for debugging (but I get the same response as in the video)ĪccelStepper stepper(AccelStepper::DRIVER, 2, 3) I can get closer to the 2A spec of the motor when turning down the input Voltage. When I try to go much higher with the current pot on the EasyDriver (at 30V) the motor spins out of control. I am supplying the EasyDriver 30V, and my power supply reads ~0.3A when the motor runs. The motor becomes very noisy and vibrates heavily (see the screw fly off the motor in the video). The 2nd half of the video shows INPUT=1, using AccelStepper. It shows how the motor is running with INPUT=3 (see code below), this is using a half-step loop through EasyDriver. When running the stepper simply through my BigEasyDriver (at similar speeds) it runs very smooth. SERIAL_PORT.I am having trouble getting my stepper to run smoothly at "low speeds" (details below) using AccelStepper library. While(!Serial) // Wait for serial port to connect Serial.begin(250000) // Init serial port and set baudrate TMC2209Stepper driver(&SERIAL_PORT, R_SENSE, DRIVER_ADDRESS ) ĭigitalWrite(STEP_PIN, !digitalRead(STEP_PIN)) #define R_SENSE 0.11f // E_SENSE for current calc. #define DRIVER_ADDRESS 0b00 // TMC2209 Driver address according to MS1 and MS2 #define SERIAL_PORT Serial2 // TMC2208/TMC2224 HardwareSerial port SERIAL_PORT.begin(115200, SERIAL_8N1, RX2, TX2) įull code example for the TMCStepper library is here: #include I used the example from here but you shall use the Hardware-Serial on ESP32, so I connected the Tx and Rx to pins 16 and 0 and had to initialize the Serial connection as: #define RX2 16 ![]() I was even able to use the TMCStepper library, even thought it might not be completely supported on ESP32 for the TMC2209. So at least I got all the information summarized. Moving the EN to the right spot - the one on the edge solved a week of me-pulling-my-hair-out. Here few links to the stepper driver: Silent2209 - FYSETC WIKIĪccording to the description on the board I though the EN pin is the the second one from the edge but this is the MS1. I can confirm, that the ESP32 is running, I can see the "High"/"Low" messages in the serial console, I was able to blink the internal LED (the commented out code). PinMode(33, OUTPUT) // Set the pin as output A connection diagram can be found in the schematics.ĭigitalWrite(EN_PIN, HIGH) //deactivate driver (LOW active)ĭigitalWrite(DIR_PIN, LOW) //LOW or HIGHĭigitalWrite(EN_PIN, LOW) //activate driver Note: You also have to connect GND, 5V/VIO and VM. Other examples/libraries can be found here: I used the code from this example and adapted it to match my wiring: /*
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