Gravity DC Micro Metal Gear Motor w/Driver - 30:1
Description
- Easy to operate
- You are able to control the motor using only one control signal
- Easily implement forward/reverse control
- Also combines the features of a DC motor and 360 degree servo
The Gravity DC Micro Metal Gear Motor w/Driver - 30:1 is easy to operate - using the DFRobot "Gravity" interface, you are able to control the motor using only one control signal. Easily implement forward/reverse control and speed control via PWM. This motor also combines the features of a DC motor and 360 degree servo.
- Operating voltage: 3.5V - 8V
- Reduction ratio: 30:1
- No load current: 40mA@6V (approx)
- Static current: < 1mA (no PWM control signal input)
- Interface: Gravity 3-Pin
- PPM signal resolution: 1us
- PPM signal pulse width range: 500us-2500us
- Clockwise pulse width range: 500us-1400us (500us speed maximum)
- Stop pulse width range: 400us-1600us
- Anticlockwise pulse width range: 1600us-2500us (2500us speed maximum)
- PWM frequency: 500 Hz.
Ces petits moteurs et ESC semblent très bien fonctionner pour les petits robots. Je les utilise sur un robot de combat de 1 livre et ils ont généralement bien résisté aux tests. J'ai cependant vu un impact important lorsque mon robot a heurté un mur suffisamment fort pour tuer l'un des moteurs, bien que l'ESC et la boîte de vitesses semblaient bien fonctionner. Je les fais fonctionner avec un régulateur abaisseur DC-DC à 7 volts, pas plus que cela et les ESC semblent mourir.
These little motors and ESCs seem to work very well for little robots. I am using them on a 1 pound combat robot and they generally have held up well in testing. I did however see one big impact when my robot hit a wall hard enough that killed one of the motors, although the ESC and gearbox seemed to be fine. I am running them with a DC-DC buck regulator at 7 volts, any higher than that and the ESCs seem to die.
Pro: very practical package. As simple as it gets. To take into account: small reduction: fast and little torque. Make sure it fits your expected regime. Cons: when changing direction suddenly under loads something stalls. Motors loses power and reengages a second later. We suppose is some countercurrent protection tripping in the controller, but don't know for sure. Changing direction smoothly (first slow down, invert, then ramp up) sidesteps the issue.
Pro: package très pratique. Aussi simple que cela devient. À prendre en compte: petite réduction: couple rapide et rapide. Assurez-vous que cela correspond à votre régime prévu. Inconvénients: lorsque vous changez de direction soudainement sous une charge, quelque chose cale. Motors perd son énergie et se réengage une seconde plus tard. Nous supposons qu'il y a un déclenchement de la protection à contre-courant dans le contrôleur, mais nous n'en sommes pas certains. Changer de direction en douceur (d'abord ralentir, inverser, puis accélérer) permet d'éviter le problème.
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