{"title":"Adafruit TMC2209 Stepper Motor Driver Breakout Board","handle":"adafruit-tmc2209-stepper-motor-driver-breakout-board-ada6121","url":"/products/adafruit-tmc2209-stepper-motor-driver-breakout-board-ada6121","description":"The Adafruit TMC2209 Stepper Motor Driver Breakout Board makes controlling stepper motors easy and virtually silent. Using Trinamic's \"Stealth Chopper\" technology, this driver delivers smooth, quiet microstepping with just two control pins — no timers, PWM, or real-time microcontroller required. Simply set the DIRection pin and toggle the STEP pin to move.\n\nDesigned for prototyping, this breakout features screw terminal blocks for motor power and stepper wires, clearly labelled control pins, mounting holes, and LED indicators for direction and step signals. The board is fabricated with 2 oz copper for better current handling and heat dissipation, supporting up to 2A with adjustable current limiting via an onboard potentiometer.\n\nKey Features\n\n\nTrinamic TMC2209 Driver – Silent \"Stealth Chopper\" DMOS microstepping driver with overcurrent protection\n\n2-Pin Control – Drive steppers with just DIRection and STEP pins, no timers or PWM needed\n\nAdjustable Microstepping – Defaults to 1/8 microstep; configurable to 1/16, 1/32, or 1/64 via MS1/MS2 pins, or up to 1/256 via UART\n\nMotor Voltage – 5V to 29V DC input\n\nLogic Voltage – 3V to 5V, compatible with Arduino, ESP32, Raspberry Pi, and other boards\n\nUp to 2A Current – Adjustable current limiting via onboard potentiometer\n\nUART Interface – Optional single-pin serial port with auto-baud for advanced configuration, diagnostics, and StallGuard sensor-less stall detection\n\nLED Indicators – Red/green LEDs for direction, yellow LED for step activity\n\nIndex and Diagnostic Outputs – Index pulses at microstep zero-crossing; diagnostic output for short/open circuit and stall detection\n\nScrew Terminal Blocks – Easy connections for motor power and 4-wire bipolar stepper motors (26–20 AWG, 2.54mm spacing)\n\n2 oz Copper PCB – Better current carrying capacity and heat dissipation\n\nFour Mounting Holes – Secure board installation\n\n\n\nNote: At higher currents, both the motor driver and stepper motor may generate significant heat. A heatsink on the TMC2209 chip is recommended for sustained high-current operation.\n\n\nIdeal For\n\nCNC machines and 3D printers\nRobotics and precision motion control\nPrototyping stepper motor projects\nApplications requiring silent motor operation\n\n\nPackage Contents\n\n1× Adafruit TMC2209 Stepper Motor Driver Breakout Board (assembled and tested)\n1× Header strip (requires soldering)\n\n\nResources\n\nTMC2209 Datasheet (Analog Devices)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":666,"title":"Default Title","sku":"AF-6121","mpn":"ADA6121","price":17.58,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":101,"option1":"Default Title"}]}