TT geared motor with Hall encoder (AB) & double shaft - 300 rpm

This TT DC geared motor with double shaft and integrated Hall encoder (2 channels) is ideal for precise speed measurement and direction/displacement detection in robotics and DIY projects (e.g. Arduino / Raspberry Pi, smart car, STEM). The encoder provides two phase-shifted square wave signals (H1/H2), which means that the direction of rotation can be reliably determined in addition to the speed.

Technical details

Pin assignment / connections

Encoder (Hall):

• G = Hall supply GND

• V = Hall supply + (typically 3.3 V or 5 V, depending on the microcontroller)

• H1 = Hall output channel 1 (square wave)

• H2 = Hall output channel 2 (square wave)

Motor:

• M+ = motor supply plus

• M- = Motor supply minus

Important:

• The voltage V-G (encoder) depends on your controller (typically 3.3 V / 5 V).

• The voltage M+-M- is the motor voltage (6 V or 12 V depending on the variant).

• There is a magnetic disk on the shaft (N-/S-pole ranges).

• The Hall sensor recognizes the poles and generates a square wave from them: e.g. high at S pole, low at N pole.

• H1 and H2 are arranged at different positions → the signals are out of phase (quadrature).
  This allows you to:

• Calculate thespeed from the frequency/period duration

• Determinethe direction of rotation via the phase position H1 vs. H2

Speed calculation (from period duration)

If the magnetic disk P generates poles (or pole segments) and the measured period duration of the Hall square wave T is: n=60/P⋅T

• n in rpm

• T in seconds

• P = number of magnetic poles/segments (depending on the magnetic disk used)

Dimensions

• Total length: ~ 79.95 mm

• Gearbox housing width: ~ 22.40 mm

• Motor/housing height: ~ 25.79 mm

• Output shaft: Ø ~ 5.40 mm

Typical applications

• Encoder wheel / odometry (displacement measurement)

• Robot chassis, smart car, line follower

• Speed control (PID), RPM measurement

• Teaching/STEM projects, prototyping

Scope of delivery

• 1x TT geared motor with Hall encoder (AB) & double shaft - 300 rpm, incl. connection cable