DC Gear Motor – Hamtech Electronics Technologies

BO Motor L-Shape – High Torque DC Gear Motor for Robotics

admin — Thu, 20 Nov 2025 19:52:01 +0000

The BO Motor L-Shape is a lightweight DC gear motor commonly used in robotics and small automation projects. Designed with an L-shaped gearbox, it offers a compact form factor that makes mounting easier in tight spaces. Its internal geared structure ensures stable, high-torque output at low speeds, making it an excellent choice for mini robot cars, line followers, obstacle avoidance robots, and STEM learning kits.

The motor operates on 3–6V DC, offering optimal performance around 5V, which matches perfectly with Arduino, ESP32, Raspberry Pi motor driver shields, and L298N/L293D modules. It features a 1:48 gear ratio for balanced speed and torque, making it reliable for educational and hobby robotics.

Key Features

L-Shape Design
Space-saving motor design for easy mounting in compact robotic platforms.
High Torque at Low Speed
Ideal for driving wheels, conveyor belts, and lightweight mechanical loads.
Lightweight & Efficient
Perfect for battery-powered robots and DIY electronics projects.
Standard Shaft Size
Compatible with most BO motor wheels available in the market.
Hobby-Friendly Voltage Range
Works directly with AA batteries or 5V motor drivers.

Specifications

Feature	Details
Rated Voltage	3–6V DC
Operating Voltage	3V minimum, 5V recommended
Gear Ratio	1:48
No-Load Speed	~100–200 RPM @ 5V (varies by model)
Torque	0.6–1.2 kg·cm (approx.)
Stall Current	~500–700mA
Shaft Type	Dual-side flat shaft
Motor Type	Brushed DC geared motor
Body Type	L-shape gearbox
Weight	Approx. 30g

Applications

Robotics and educational kits
Line-following and smart car robots
Obstacle-avoidance robots
Mini conveyor systems
STEM school projects
Lightweight automation mechanisms

Package Includes

1 × BO Motor L-Shape

28BYJ-48 Stepper

admin — Thu, 20 Nov 2025 19:52:00 +0000

The 28BYJ-48 Stepper Motor is a 5V DC geared stepper motor with a 64-step unipolar design and a 1/64 reduction gear, offering precise rotational control. It is widely used with Arduino, ESP32, and other microcontrollers for projects such as robotic arms, CNC machines, and automation systems. The motor comes with a ULN2003 driver module for easy interfacing.

Key Features

5V DC operating voltage
64-step unipolar stepper motor
1/64 reduction gear for higher torque and precision
Comes with ULN2003 driver module
Compact and reliable for robotics and small automation projects

Variants

28BYJ-48 with ULN2003 driver board
28BYJ-48 bare motor (without driver)

Specifications

Feature	Details
Motor Type	Unipolar Stepper Motor
Step Angle	5.625° / 64 steps per revolution
Gear Ratio	1/64
Operating Voltage	5V DC
Current	240 mA per phase
Torque	~300 g·cm
Dimensions	28 × 28 × 20 mm (motor only)

Applications

Robotics (robot arms, walking robots)
Small CNC machines and plotters
Automated devices and mechanisms
Educational electronics projects
IoT projects requiring precise rotation

Compatible Boards / Circuits

Arduino Uno, Mega, Nano
ESP32 / ESP8266
Raspberry Pi (with appropriate driver)
Any microcontroller supporting ULN2003 or stepper control

BO Motor Straight

admin — Thu, 20 Nov 2025 19:52:00 +0000

The BO Motor Straight is a low-voltage DC geared motor designed for robotics and automation. Its straight gearbox design allows for easy integration into mobile robots, conveyor mechanisms, and other DIY projects. It provides reliable torque and speed control when used with motor drivers or H-bridge circuits.

Key Features

Compact DC geared motor
Straight gearbox for easy mounting
Operating voltage: 3–12V DC
Moderate torque suitable for small robotics
Compatible with motor driver modules (L298N, TB6612FNG, etc.)
Lightweight and durable for DIY projects

Variants

BO Motor Straight – standard
BO Motor Straight – with encoder (optional)

Specifications

Feature	Details
Motor Type	DC Geared Motor
Gear Type	Straight
Operating Voltage	3–12V DC
Current	100–300 mA (depending on load)
RPM	100–300 RPM (depending on voltage/load)
Torque	~200–400 g·cm
Dimensions	36 × 12 × 25 mm (approx.)

Applications

Small robotics and mobile robots
Conveyor belts and mini automation systems
Educational electronics and STEM projects
IoT devices requiring rotational motion

Compatible Boards / Circuits

Arduino, ESP32, ESP8266 (via motor driver)
Raspberry Pi (via motor driver)
Any microcontroller with PWM and motor driver support

L293d Driver ic

admin — Thu, 20 Nov 2025 19:51:57 +0000

The L293D Motor Driver IC is a popular integrated circuit used in robotics and automation projects to control DC motors and stepper motors. It features dual H-Bridge circuits that enable bidirectional motor control with PWM support for speed regulation. Ideal for Arduino, ESP32, and other microcontroller projects, it can drive motors with voltages from 4.5V to 36V and up to 600mA per channel. With internal diodes for back EMF protection, it is safe and reliable for hobbyist and educational robotics projects.

Key Features

Dual H-Bridge driver IC for controlling 2 DC motors or 1 stepper motor
Motor voltage range: 4.5–36V
Output current: 600 mA per channel (1.2A peak)
PWM speed control capable
Internal diodes for back EMF protection
Compatible with Arduino, ESP32, Raspberry Pi, and other microcontrollers

Variants

L293D Standard IC
L293D with breakout board for easier connection

Specifications

Feature	Details
Motor Channels	2 (dual H-Bridge)
Motor Voltage	4.5–36V
Output Current	600 mA per channel (1.2A peak)
Control	Logic input with PWM support
Protection	Internal diodes for back EMF
Package	DIP-16
Dimensions	19 × 10 mm

Applications

Arduino and ESP32 robotics projects
DC motor bidirectional control
Stepper motor driving
IoT and automation projects
Small robotic vehicles and educational kits

Compatible Boards / Circuits

Arduino Uno, Mega, Nano
ESP32 / ESP8266
Raspberry Pi (via GPIO and motor interface)
Any microcontroller with digital I/O and PWM