Magnetic Encoder Pair Kit with Top-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V

This awesome kit comes with two dual-channel Hall Effect sensor boards and two 6-pole magnetic discs. It's a great way to add quadrature encoding to two micro metal gearmotors with extended back shafts (note: motors and cables aren't included). The encoder board can sense the rotation of the magnetic disc and offers a resolution of 12 counts per revolution of the motor shaft when counting both edges of both channels. To figure out the counts per revolution of the gearbox output shaft, just multiply the gear ratio by 12. This compact encoder solution fits neatly within the 12 mm × 10 mm cross section of the motors on three sides, and it only extends 2.8 mm past the edge of the fourth side. The encoders have a top-entry, 6-pin male JST SH-type connector, and we have cables in three lengths: 12 cm (4.5″), 30 cm (12″), and 75 cm (30″). We also have a version with a side-entry connector. The sensors are powered via the VCC (blue wire) and GND (green wire) pins, with VCC ranging from 2.7 V to 18 V. The quadrature outputs A and B (yellow and white wires) are digital signals. This encoder version is an upgrade from the previous one, adding a connector for removable cables while keeping the basic schematic and electrical performance the same.

Using this magnetic encoder pair kit is easy. First, you'll need to solder the encoder board directly to the back of the motor, with the back shaft of the motor going through the hole in the middle of the circuit board. A good tip for alignment is to tack down the board to one motor pin first, and then solder the other pin when the board is flat and well - aligned. Be careful not to heat the motor pins for too long, as it could damage the plastic end cap of the motor or the motor brushes. Once the board is soldered, connect the motor leads to the M1 and M2 connector pins. You can access them via the red and black wires when using our JST cables. The remaining four pins are for powering the sensors and accessing the quadrature outputs. When it comes to power, connect the VCC (blue wire) and GND (green wire) pins. VCC can be anywhere from 2.7 V to 18 V. The sensors are pretty reliable, with built - in hysteresis to prevent false signals. Just remember, this kit only works with micro metal gearmotors that have extended back shafts. As for maintenance, keep the encoder clean and free from dust. If you're not using it for a long time, store it in a dry place. Also, when handling the cables, be gentle to avoid any damage.