Beschreibung
Description
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. These encoders 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). This module is compatible with all of the dual-shaft micro metal gearmotors we carry, including the HPCB versions.
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, and it extends 2.8 mm past the edge of the fourth side.
Note: This sensor system is intended for users comfortable with the physical encoder installation. It only works with micro metal gearmotors that have extended back shafts.
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
Notes:
- 1
- The assembled encoder will extend approximately 5 mm beyond the plastic motor end cap.
- 2
- Weight of full set. Each encoder board weighs ~0.4 g and each magnet disc weighs ~0.3 g.
