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29 lines
1.1 KiB
Markdown
29 lines
1.1 KiB
Markdown
5 years ago
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# Motors (servos, steppers, DC)
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The modules for this came from this legacy Adafruit repo https://github.com/adafruit/micropython-adafruit-pca9685. Look at it's
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[Docs](https://micropython-pca9685.readthedocs.io/en/latest/)
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## I2C Servo driver (PCA9685)
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Using the [PCA9685](https://www.adafruit.com/product/815) from adafruit, we can drive multiple
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servos using PWM. A large amount of the content for this read my comes from the adafruit article
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on [PCA9685 with Micropython](https://learn.adafruit.com/micropython-hardware-pca9685-pwm-and-servo-driver/micropython)
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The git repo https://github.com/adafruit/micropython-adafruit-pca9685 is still up. Look at it's
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5 years ago
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[Docs](https://micropython-pca9685.readthedocs.io/en/latest/)
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```
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Description:
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Brand: DSSERVO
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Item: DS3218 20KG Digital Servo
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Operating Voltage: 4.8 ~ 6.8 DC Volts
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Torque: 18kg.cm(5V), 21.5kg.cm(6.8V)
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Speed: 0.16sec/60°(5V), 0.14sec/60°(6.8V)
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Dead Brand: 3μs
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Motor Type: DC Motor
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Gear Type: 25T Copper & Aluminum
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Working Frequence: 50-333Hz
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Totation: 180°(PWM 500-2500μs) / 270°(PWM 500-2500μs)
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Weight: 60 g (2.12 oz)
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Size: 40 x 20 x 40.5 mm ( 1.58 x 0.79 x 1.60 in)
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```
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