Add quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit. This module is compatible with all of the dual-shaft micro metal gearmotors we carry, including the HPCB versions.

Encoders 4760 have a top-entry, 6-pin male JST SH-type connector, and we have cables that work with them available in several lengths (12 cm, 30 cm, and 75 cm).

Encoders 4761 have a side-entry, 6-pin male JST SH-type connector, and we have cables that work with them available in several lengths (12 cm, 30 cm, and 75 cm).

This kit includes two dual-channel Hall Effect sensor boards and two 6-pole magnetic discs that can be used to add quadrature encoding to two micro metal gearmotors with extended back shafts (motors and cables are not included with this kit). The encoder board senses the rotation of the magnetic disc and provides a resolution of 12 counts per revolution of the motor shaft when counting both edges of both channels. To compute the counts per revolution of the gearbox output shaft, multiply the gear ratio by 12.

This compact encoder solution fits within the 12 mm × 10 mm cross section of the motors on three of the four sides. 4760 extends 2.8 mm past the edge of the fourth side and 4761extends 4.2 mm past the edge of the fourth side.

Specifications :

4760 : Top Entry

Dimensions

Size:	12.8 mm × 11.6 mm¹
Weight:	1.5 g²

General specifications

Minimum operating voltage:	2.7 V
Maximum operating voltage:	18 V
Connector:	top-entry, 6-pin male, JST SH-type

Identifying markings

PCB dev codes:	enc03c
Other PCB markings:	0J12460

40761 :Side Entry

Dimensions

Size:	14.2 mm × 11.6 mm¹
Weight:	1.5 g²

General specifications

Minimum operating voltage:	2.7 V
Maximum operating voltage:	18 V
Connector:	side-entry, 6-pin male, JST SH-type

Identifying markings

PCB dev codes:	enc03d
Other PCB markings:	0J12461

Notes :

The assembled encoder will extend approximately 5 mm beyond the plastic motor end cap.
Weight of full set. Each encoder board weighs ~0.4 g and each magnet disc weighs ~0.3 g.

The encoders include a top-entry, 6-pin male JST SH-type connector, and we have cables available for it in three lengths:

12 cm (4.5″)
30 cm (12″)
75 cm (30″)

Use with Micro Metal Gearmotor Encoders :

When used with our encoders, the wire color scheme is as follows:

Color	Function
Red	motor power (connects to one motor terminal)
Black	motor power (connects to the other motor terminal)
Blue	encoder Vcc
Yellow	encoder A output
White	encoder B output
Green	encoder GND