Note: "L" = Logic Low (0V), "H" = Logic High (3.3 or 5V). Do not exceed these values, even momentarily, to avoid permanent damage.
// Set microstepping (example: 1/16 step = 3200 steps/rev for 1.8° motor) // MS1,MS2,MS3 all HIGH Mx1616 Motor Driver Datasheet
The has emerged as a popular choice in the mid-range stepper motor driver market. Known for its balance between power efficiency, microstepping accuracy, and thermal management, the Mx1616 is often compared to legacy drivers like the A4988 and the more modern TMC2209. Note: "L" = Logic Low (0V), "H" = Logic High (3
Choose Mx1616 when you need a step up from A4988 in thermal performance but do not require the silent, high-resolution features of TMC drivers. 9. Application Case Study: CNC Pen Plotter Project: A 2-axis pen plotter (X and Y axis) Motors: NEMA 17, 1.5A, 1.8° step Driver choice: Two Mx1616 drivers running at 1/8 microstep, 18V supply. Application Case Study: CNC Pen Plotter Project: A
Unlike some drivers that use a potentiometer (like the A4988), the Mx1616 often sets current via sense resistor values on the board or via a digital potentiometer in advanced versions. Check your specific module. Calculating Maximum Current The Mx1616 uses a reference voltage (VREF) internally. If your board provides a VREF pin:
| Pin # | Name | Type | Description | | :--- | :--- | :--- | :--- | | 1 | | Input | Enable driver (Low = driver ON; High = all outputs disabled) | | 2 | MS1 | Input | Microstep selection bit 1 (see truth table) | | 3 | MS2 | Input | Microstep selection bit 2 | | 4 | MS3 | Input | Microstep selection bit 3 (for 1/16 step) | | 5 | RST | Input | Reset active low – resets the translator to home position | | 6 | SLP | Input | Sleep mode (Low = sleep; High = normal operation) | | 7 | STP | Input | Step clock input (each rising edge advances the motor) | | 8 | DIR | Input | Direction control (High = CW, Low = CCW) | | 9 | VDD | Power | Logic supply voltage (3.3-5V) | | 10 | GND | Ground | Logic ground (must connect to system ground) | | 11 | VM | Power | Motor power supply (8-36V) | | 12 | PGND | Ground | Power ground (for motor return path) | | 13 | 1B | Output | Motor coil B – Phase 1 | | 14 | 2B | Output | Motor coil B – Phase 2 | | 15 | 2A | Output | Motor coil A – Phase 1 | | 16 | 1A | Output | Motor coil A – Phase 2 | Microstep Selection Truth Table (MS1, MS2, MS3) | MS1 | MS2 | MS3 | Microstep Resolution | | :--- | :--- | :--- | :--- | | L | L | L | Full Step | | H | L | L | 1/2 Step | | L | H | L | 1/4 Step | | H | H | L | 1/8 Step | | H | H | H | 1/16 Step |
stepper.setMaxSpeed(1000); // steps/second stepper.setAcceleration(500); stepper.moveTo(6400); // 2 full rotations (if 200 steps/rev * 16 microsteps)
Note: "L" = Logic Low (0V), "H" = Logic High (3.3 or 5V). Do not exceed these values, even momentarily, to avoid permanent damage.
// Set microstepping (example: 1/16 step = 3200 steps/rev for 1.8° motor) // MS1,MS2,MS3 all HIGH
The has emerged as a popular choice in the mid-range stepper motor driver market. Known for its balance between power efficiency, microstepping accuracy, and thermal management, the Mx1616 is often compared to legacy drivers like the A4988 and the more modern TMC2209.
Choose Mx1616 when you need a step up from A4988 in thermal performance but do not require the silent, high-resolution features of TMC drivers. 9. Application Case Study: CNC Pen Plotter Project: A 2-axis pen plotter (X and Y axis) Motors: NEMA 17, 1.5A, 1.8° step Driver choice: Two Mx1616 drivers running at 1/8 microstep, 18V supply.
Unlike some drivers that use a potentiometer (like the A4988), the Mx1616 often sets current via sense resistor values on the board or via a digital potentiometer in advanced versions. Check your specific module. Calculating Maximum Current The Mx1616 uses a reference voltage (VREF) internally. If your board provides a VREF pin:
| Pin # | Name | Type | Description | | :--- | :--- | :--- | :--- | | 1 | | Input | Enable driver (Low = driver ON; High = all outputs disabled) | | 2 | MS1 | Input | Microstep selection bit 1 (see truth table) | | 3 | MS2 | Input | Microstep selection bit 2 | | 4 | MS3 | Input | Microstep selection bit 3 (for 1/16 step) | | 5 | RST | Input | Reset active low – resets the translator to home position | | 6 | SLP | Input | Sleep mode (Low = sleep; High = normal operation) | | 7 | STP | Input | Step clock input (each rising edge advances the motor) | | 8 | DIR | Input | Direction control (High = CW, Low = CCW) | | 9 | VDD | Power | Logic supply voltage (3.3-5V) | | 10 | GND | Ground | Logic ground (must connect to system ground) | | 11 | VM | Power | Motor power supply (8-36V) | | 12 | PGND | Ground | Power ground (for motor return path) | | 13 | 1B | Output | Motor coil B – Phase 1 | | 14 | 2B | Output | Motor coil B – Phase 2 | | 15 | 2A | Output | Motor coil A – Phase 1 | | 16 | 1A | Output | Motor coil A – Phase 2 | Microstep Selection Truth Table (MS1, MS2, MS3) | MS1 | MS2 | MS3 | Microstep Resolution | | :--- | :--- | :--- | :--- | | L | L | L | Full Step | | H | L | L | 1/2 Step | | L | H | L | 1/4 Step | | H | H | L | 1/8 Step | | H | H | H | 1/16 Step |
stepper.setMaxSpeed(1000); // steps/second stepper.setAcceleration(500); stepper.moveTo(6400); // 2 full rotations (if 200 steps/rev * 16 microsteps)