Table of Contents

List 5: Test PWM Output

⚠️
SAFETY FIRST: Ensure proper multimeter/oscilloscope connections before applying power.
1

Measurement Setup

  • Connect multimeter red probe to GPIO.4 (green terminal)
  • Connect multimeter black probe to GND
  • (Alternative: Use oscilloscope for measurement)
2

PWM Mode Activation

  • Enter command: M6 T1
  • Switch to PWM mode
3

PWM Output Testing

  • Enter command: M3 S5000 - Output should change from 0V to 2.5V
  • Enter command: M3 S10000 - Output should change from 0V to 5V
  • Enter command: M5 - Output should return to 0V
4

Mosfet ON/OFF Test (Optional)

  • Connect red probe to MOSFET Vmot-main (orange terminal)
  • Connect black probe to IO.4-MOS-GND (orange terminal)
  • Enter command: M3 S10000 - Output:Vmot-main
  • Enter command: M5 - Output: 0V
  • used to drive inductive loads such as solenoid valves
✅

Expected Results

  • M3 S5000: Output changes from 0V to 2.5V
  • M3 S10000: Output changes from 0V to 5V
  • M5: Output returns to 0V
  • Mosfet output Vmot-main or turn off

Image shows

Coming soon!

Video demonstrations

# Begin PWM  
pwm:
  pwm_hz: 5000
#   direction_pin: NO_PIN
  output_pin: gpio.4
  enable_pin: NO_PIN
  disable_with_s0: false
  s0_with_disable: true
#   spinup_ms: 0
#   spindown_ms: 0
  tool_num: 1
  speed_map: 0=0.000% 10000=100.000%
  off_on_alarm: false

This version of the WIKI is still being edited. You can check out previous videos.

Beginner upload firmware set webUI tutorial

The V4.9 plus and V4.8A V4.9A is similar config, different is the v4.9 plus step/dir model onboard driver “MS3 pin” need set in yaml.

// Relay // PWM // Laser // 0~10V // Output Test //

The V4.9 plus and V4.8A V4.9A is similar config, different is the v4.9 plus step/dir model onboard driver “MS3 pin” need set in yaml.

// Connect hardware // Limits // Probe // Motor // Relays

The V4.9 plus and V4.8A V4.9A is similar config, different is the v4.9 plus step/dir model onboard driver “MS3 pin” need set in yaml.