5V–24V 8A PWM Controller — Precision frequency, pulse, and speed control in one compact module
Whether you need to regulate motor speed, generate a precise signal, or automate a timed sequence, this 5V–24V 8A PWM controller module handles it all without the need for software, PCs, or complex programming. Featuring two distinct operating modes — PWM and PULSE — it is perfectly suited for everything from rapid prototyping to repeatable industrial automation tasks.
Note: While the module accepts a supply voltage of DC 3.3V–30V, we recommend a nominal range of 5V–24V for driving motors or other loads, ensuring you stay within the 8A output limit.
Why choose this model? (Key Advantages):
- Adjustable 1Hz–150KHz frequency — from slow, multi-second timing to high-speed signals for brushless motor control or low-frequency RF applications.
- 0–100% duty cycle with fine adjustment — allows for complete load shut-off, full power, or any precise increment in between.
- Cyclic timer with 0.001s precision — configure ON duration, OFF duration, start-up delay, and exact pulse counts (1–9999 or continuous).
- 8A output current — robust enough for medium-power DC motors, 12V/24V solenoid valves, or LED strips up to 192W at 24V.
- On-board programming — dedicated buttons and an integrated LCD display mean no drivers, laptops, or libraries are required.
- Non-volatile memory — your settings are saved automatically, so the module returns to your exact configuration upon restart.
- Wide operating temperature range (−20°C to +85°C) — reliable performance in workshops, outdoor environments, or industrial control panels.
Performance and Technical Details
In PWM mode, you can independently set the frequency and duty cycle; the output remains continuously active, making it ideal for DC motor speed control or stable LED dimming. In PULSE mode, you define a complete sequence: positive pulse width, negative pulse width, start-up delay, and total cycle count. Once the sequence finishes, the output automatically returns to 0V — no manual intervention or supervision required.
Switching between modes is as simple as holding down the SET button, and the OUT indicator provides visual confirmation of the output status. Its compact 79 × 43 × 26 mm dimensions allow for easy integration into any enclosure or control panel.
| Parameter | Value / Detail |
|---|---|
| Supply Voltage | DC 3.3V – 30V |
| Recommended Operating Voltage | DC 5V – 24V |
| Max Output Current | 8A |
| PWM Frequency Range | 1Hz – 150KHz |
| Duty Cycle | 0.00% – 100% |
| Positive / Negative Pulse Width | 0.000s – 9999s |
| Start-up Delay | 0.000s – 9999s |
| Configurable Pulse Count | 1 – 9999 or Infinite (—-) |
| Operating Modes | PWM (frequency + duty cycle) / PULSE (timer + pulses) |
| Operating Temperature | −20°C … +85°C |
| Operating Humidity | 0% – 95% RH (non-condensing) |
| Dimensions | 79 × 43 × 26 mm |
Programming and Usage Instructions
- PWM Mode (Factory Default): Upon power-up, the module defaults to PWM mode (indicated by the % symbol). Use the FREQ+/FREQ− buttons to set the frequency between 1Hz and 150KHz. Adjust the duty cycle using DUTY+/DUTY− from 0.00% to 100%. Press ON briefly to activate the output; the OUT indicator will confirm it is active.
- Switching to PULSE Mode: Press and hold the SET button for approximately 6 seconds. The % symbol will disappear, indicating the module is now in PULSE mode.
- Pulse Configuration (PULSE Mode): Use P+/P− to set the positive pulse width and N+/N− for the negative pulse width. Values are in seconds with 0.001s precision.
- Timer and Pulse Count: Press and hold SET for 2 seconds — the screen will display SET in the bottom-left corner. Set the delay time using P+/P− and the pulse count using N+/N− (setting to —- enables infinite mode).
- Starting a Timed Sequence: Press ON briefly — the module will wait for the configured delay, generate the set number of pulses, and then automatically shut off the output.
- Returning to PULSE Interface: Press and hold SET for 2 seconds from the timer sub-menu.
- Returning to PWM Mode: Press and hold SET for approximately 6 seconds while in PULSE mode.
Package Contents
- 1x 5V–24V 8A PWM Controller / Signal Generator / Timer Module
Frequently Asked Questions
Can it control DC motors directly without extra circuitry?
Yes. With an 8A output, the module can directly control small to medium-power DC motors. For larger motors or highly inductive loads, we recommend adding a MOSFET driver or power relay between the module and the motor.
What is the practical difference between PWM and PULSE modes?
PWM mode generates a continuous signal, which is perfect for speed regulation or LED dimming. PULSE mode provides full control over a sequence: you define the number of pulses, the duration of each, and the start-up delay. This is ideal for solenoid valves, automation, and any application where you need to count cycles.
Does it work for RC servos at 50Hz?
Yes. The frequency range starts from 1Hz, so 50Hz is well within its capabilities. For precise position control, use PULSE mode and set the pulse width between 1ms and 2ms, which is the standard requirement for most servos.
Are settings lost when the power is turned off?
No. The module automatically saves your frequency, duty cycle, pulse widths, and timer parameters to its internal memory. Everything will be exactly as you left it when you power it back on.
Can it be used as a dimmer for RGB LED strips?
Yes, for monochromatic 5V–24V LED strips drawing under 8A. For RGB strips, use a separate module for each colour channel to allow for independent adjustment.
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