Encoder Metal Gearmotor 12V DC High Speed 130RPM Gear Motor with Encoder for Arduino and 3D Printers

I needed a gearmotor with positional feedback for an automated roller blinds project, so I bought one of these motors for testing. The motor works, and it's performing at an acceptable level. I was able to successfully read positional feedback with a micro-controller. The noise level is somewhat normal for a DC motor of its kind, not silent but not loud. I'd say it's similar to pololu's 25D LP 12V 33RPM gearmotor, but with 75% of the torque at any given current level.My test setup is pictured here. At zero load, the motor draws 12V 50-60mA. When hoisting the 361g measuring tape over a 48mm diameter wheel, it draws 12V 110-120mA. I'd estimate that it draws 12V 0.45A - 0.6A at the rated load in the description (4.5 kg*cm). It's not a bad idea to have a buck/boost converter with a current limiter set to ~0.45A, so that your motor won't burn itself out in case of a stall.

Good motor, works as expected. I use it for my small robot. Encoder works fine too. Company provides a code for Arduino in C++, which handles encoder data and controls motor with motor class. This code contains PID controller lines, but I am not using this. I modified this code for my needs, but I did not change a core part about encoder which works fine. Finally: this is a good motor. It can be used to drive small robot. Maybe RPM is high for this, but it is acceptable for small carts.

Like others reported before, in my case one of the encoder outputs is pegged to VCC, checked pull-up resistance and I'm getting a short (1ohm). The other encoder output works but its pull-up resistance is ~3Kohm (lower than 10Kohm as they advertise). Motor spins though.

I've had little luck with cheap DC motors with encoders in the past but I have to say this one is exceptionally high quality for what it costs. Encoder works no problem, and they are very quiet when compared to similar DC motors I've bought in the past.

I have gone through 5 different types of DC Gear Motors, with encoder, as trial and error until I have the solution that I want. This is it. I am using standard aluminum mini blinds, from local Home Depot, Menards type, and installing this motor to turn the rod that controls the angle of the blind. (Open and Close, and everything between). These motors fit right into the blinds and the shaft lines up with the rod for tilting. No modifications needed. Encoder feedback gives me the angle, or position, of the tilt on the blind. Now I'm going to use these to lift and lower all of my roller shades as well. Great little powerful, accurate motor.