A Raspberry Pi robot without a HAT

Using an Arduino shield or Raspberry Pi add-on board is often a quick and convenient way to get started on a robotics project, but for maximum flexibility, nothing beats building your own system from standalone boards. Rud Merriam’s Hackaday article describes the design of his Raspberry Pi-controlled robot, for which he opted to use separate modules instead of daughterboards on the Pi, and mentions some of the trade-offs involved in making that decision.

The robot is built on a Wild Thumper chassis and uses a Maestro USB servo controller and two Simple Motor Controllers to interface the Raspberry Pi with the robot’s motors and actuators. In Rud’s writeup, he explains how he made use of some of the more advanced features of the Maestro and SMCs, like using servo channels for general-purpose I/O and setting up daisy-chained serial communications. Check out the full article for all of the details.

Frequency-conversion Submersible Motor Winding Wire

Frequency-conversion Submersible Motor Winding Wire Series

1. 70℃-Grade Frequency-conversion Submersible Motor Winding Wire

This products is made of solid copper wire conductor, polyamid film wrapped strengthened, modified polypropylene jacket, optional polyamid jacket. It has fine performance for water-resistant, mechanical, electric conducting and acid-alkali-salt resistance. It is used to water-filled submersible motor, oil-filled high-voltage submersible motor or similar working electronics with frequency-conversion starting, long-term high/low frequency, low voltage, continually-starting, unstable power grid or similar working conditions electronics, overheat and overload especially to fountain motor and applied to standard of environmental-friendly.

The product can be used for Voltage 1140V, temperature -10℃-70℃, water pressure 1.5MPa, light acid-alkali-salt media or oil-media, for long time use with stable liability.


2.
90℃-Grade Frequency-conversion Submersible Motor Winding Wire
This products is made of solid copper wire conductor, polyamid film wrapped strengthened, modified cross-linked polyethylene insulation, optional polyamid jacket. It has fine performance for water-resistant, mechanical, electric conducting and acid-alkali-salt resistance. It is used to water-filled submersible motor, oil-filled submersible motor or similar working electronics with frequency-conversion starting, long-term high/low frequency, low voltage, continually-starting, unstable power grid or similar working conditions electronics, overheat and overload especially to fountain motor and applied to standard of environmental-friendly.

The product can be used for Voltage 1140V, temperature -40℃-90℃, water pressure 1.5MPa, light acid-alkali-salt media or oil-media, for long time use with stable liability.

3. 180℃-Grade Frequency-conversion Submersible Motor Winding Wire

This products is made of solid copper wire conductor, polyamid film wrapped strengthened, multi-type fluoroplastic insulation jacket. It has fine performance for water-resistant, mechanical, electric conducting and acid-alkali-salt resistance. It is used to water-filled submersible motor, oil-filled submersible motor or similar working electronics with frequency-conversion starting, long-term high/low frequency, low voltage, continually-starting, unstable power grid, overheat and overload or similar working conditions electronics, especially to fountain motor and applied to standard of environmental-friendly.

The product can be used for Voltage 1140V, temperature -100℃-180℃, water pressure 1.5MPa, acid-alkali-salt media or oil-media, for long time use with stable liability.


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