Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels. The installed system does not exceed the 12 mm × 10 mm cross section of the motors and extends only 5 mm beyond the plastic motor end cap. The 3-tooth wheel provides 12 counts per revolution; using the 5-tooth wheel yields 20 counts per revolution. This version is intended for use at 3.3 V.
Note: This version is not compatible with the HPCB micro metal gearmotors; it is only compatible with LP, MP, and HP dual-shaft micro metal gearmotors.
Note: We strongly recommend our newer magnetic encoder pair kits for micro metal gearmotors over these optical encoders. The magnetic encoders are less susceptible to ambient interference, and they feature cleaner signals with built-in hysteresis, so they can be connected directly to a microcontroller or other digital circuit. Conversely, since the optical encoder outputs are direct phototransistor outputs, some signal conditioning is often necessary between the sensor and a digital system processing the signals.
Also, this encoder is not compatible with our HPCB micro metal gearmotors (the HPCB motor terminals are too large to fit the corresponding PCB holes), but it is compatible with the LP, MP, and HP versions of our micro metal gearmotors.
More technical information at Pololu.