I can't get UART communication working with ESP32 ( BPI-Leaf-S3 - Banana Pi Wiki clone of ESP32-S3-DevKitC-1) with MKS TMC2209 v2. Here is my wiring diagram: [image] I'm using following Adruino code ( TMC2209/TestConnection.ino at main · janelia-arduino/TMC2209 · GitHub ) to test the connection. I…

[image] tomas_albrektas: Is my wiring right? Does not look right. Help us help you.

if you are using Serial1 you need to define the pins, e.g. example code // ESP32 Serial1 test - for loopback test connect pins 16 and 15 - lines marked with <<< #define RXD1 16 // <<<<<<<< #define TXD1 15 // <<<<<<<<< void setup() { // initialize both serial ports: Serial.begin(1…

Regarding specification the TMC2209 communicates over a UART serial port using a single wire interface, allowing bi-directional operation for full control and diagnostics. The UART single wire interface allows control of the TMC2209 with any set of microcontroller UART serial TX and RX pins. The si…

[Idahowalker] thank you for the feedback. Adding information regarding your comments. Code that I'm using: #include <Arduino.h> #include <TMC2209.h> HardwareSerial & serial_stream = Serial2; const long SERIAL_BAUD_RATE = 115200; const int DELAY = 3000; // Instantiate TMC2209 TMC2209 stepper_dri…

Hi tomas_albrektas! Currently I am working on simillar setup (the only difference is I am using Arduino MEGA instead of ESP32). It seems that your circuit is missing very important connection, namely - enable pin (EN) is not connected. According to TMC2209 manual, chip is enabled when EN pin state …

The other issue you got is not having motor power, the driver wont work without the motor power. Motor power needs to be connected first. You can solder EN directly to GND to enable the driver, and use UART to turn it on/off. You also need STEP & DIR pins, you can't control the motor via UART unle…

@oogryzek , @monkeyfist thank you for your answers. This weekend I will try to implement your suggestions!

Ok got some updates. Regarding DEV board specifications UART1 should be on pins 17 and 18 but I have purchased a Logic analyzer and found out that my RX and TX pins are 16 and 15 pins. Hardware serial library decided to change those pins regarding my MP type... So when I changed pins UART communica…

Hi tomas_albrektas! I am not sure if this will change anything, but you choose wrong TMC stepper, i.e. TMC2208 instead of TMC2209. To be honest - I encountered very similar problem with the library you are using and that was the main reason I switched to FlexyStepper.

Question regarding UART communication with ESP32 dev board

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UKHeliBob February 6, 2023, 10:07am 2

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Question regarding UART communication with ESP32 dev board

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