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New Products! Servos, parts, and some basics

This post is the first of (hopefully) many "New Product" posts here at Blue Robotics. In addition to thrusters, there are a whole lot of other things you'll need to get your underwater creation in the water. Today we're introducing a few new products to help out with that.

Waterproof Servos from Hitec

These three servos are just like ordinary servos but waterproof for use on underwater robotic arms, actuators, pan/tilt systems, and just about anything else. With an IP67 rating, they are officially waterproof down to about 1 meter. We've heard reports of people using them deeper than that, but nothing official.

The HS-646WP is a standard size, analog servo. Analog (versus digital) servos work great for most applications. This servo is strong with 133 oz/in of torque at 6.0V. Although this servo is "standard" size, it is slightly larger than Hitec's other standard sized servos. HS-5646WP is a digital version of the same servo - meaning that it has a microcontroller inside to control the servo position giving it more precision, strength, and the ability to be reprogrammed. Last is the HS-5086WP, a micro-sized digital servo. It's quite a bit smaller than the standard-sized servos for smaller applications. All of the servos come with standard 3-pin connectors, several servo arms, and mounting hardware.

Spare Thruster Parts

We also have a few spare parts in our store now including spare propeller sets and spare thruster cable, sold by the meter.


The ocean covers 71 percent of the Earth’s surface and contains 97 percent of the planet’s water, yet more than 95 percent of the underwater world remains unexplored.
National Oceanic and Atmospheric Administration (NOAA)

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