DC 3-12V Wireless PWM Speed Control Module

The Mini IR Remote Control DC Motor Forward/Reverse Controller is an ultra-low voltage and compact module engineered for the precise control of brushed DC motors. Utilizing the robust RZ7899 H-bridge motor driver IC, this controller delivers seamless forward, reverse, stop, and speed adjustment functions wirelessly via a dedicated Infrared (IR) remote. Consequently, it supports a wide operating voltage from 3.0 V up to 12 V DC, making it highly compatible with small battery-powered systems and toys. Featuring four distinct control modes, you can easily program the module for momentary, latching, or speed control operation. Therefore, deploy this module when your project requires versatile remote motor control in a minimal, low-voltage footprint without compromising current capability.

Key Features:

• Ultra-Low Voltage Operation: Supports a highly efficient operating voltage range typically from 3 V to 12 V DC, ideal for battery-powered projects.
• RZ7899 Integrated Driver: Incorporates the powerful RZ7899 H-Bridge IC, which provides robust bidirectional control and high current capacity.
• Infrared (IR) Wireless Control: Uses an IR remote for directional and speed adjustment, furthermore it offers responsive, line-of-sight control.
• High Current Capacity: Handles continuous working currents up to ≈3 A (with peak currents up to 4 A), suitable for miniature high-torque motors.
• Multiple Control Modes: Features four operational modes: Self-Locking (Latch), Jogging (Momentary), and two forms of Speed Regulation.

Technical Specifications:

• Driver IC: RZ7899 Monolithic H-Bridge DC Motor Driver
• Input Voltage (Typical): 3.0 V - 12 V DC (IC Max Rating: 25 V)
• Motor Type Supported: Brushed DC Motor (Bi- directional)
• Continuous Output Current: ~3 A
• Peak Output Current: ≤ 4 A
• Control Interface: Infrared (IR) Receiver
• Quiescent Current: Extremely low (≤ 2 µA in standby mode)
• Protection Features: Built-in Thermal Shutdown and Over-Current Limit.

Mechanical Specifications:

• Wiring Terminals: Small two-pin screw or wire terminals for both power input and motor output.
• Mode Learning Button: A single on-board key simplifies the process of coding the remote and switching between the four available control modes.
• Board Design: Highly compact and single-sided PCB for easy placement in toys and small enclosures.

Dimensions:

• Controller Length: ≈ 40 mm
• Controller Width: ≈ 20 mm
• Controller Thickness (PCB only): ≈ 8 mm
• Remote Control Dimensions: Minimalist, palm- sized IR remote control.

Pinout and Wiring:

• VCC/GND: Power input pins; connect a stable DC power supply (3V-12V), which also powers the logic circuitry.
• Motor Output (OUT+/OUT-): Connect the two motor terminals here; the output changes polarity to control motor direction.
• IR Receiver: Integrated on the board to capture commands from the paired infrared remote control unit.
• Learning Key: Hold for specific durations (e.g., 3s, 6s, 9s, 12s) to initiate mode setting or clear the remote code memory.

Commonly Used:

• Small RC Toys & Models: Provides essential motor control for low-voltage remote- controlled cars, boats, and robots.
• Automated Appliances: Ideal for controlling small linear actuators or mechanisms in DIY smart home devices (e.g., door locks, damper control).
• Hobby Electronics: An excellent solution for beginners needing a simple, ready-to-use controller for DC motors with remote capability.