Red Hunter

483 orders since Feb 25, 2017

Livermore, CA, United States of America

Ships from United States of America.

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Overall Rating:

Review Breakdown

Average Ratings

Product: (4.88)

Documentation: (4.18)

Shipping: (4.76)

Communication: (4.82)

All Reviews

Jonas | April 14, 2021

Works perfectly, shipped fast, ultimate support!

For Octosonar - connect 8 x HC-SR04 to Arduino

Ordered 3 Octosonar Feathers. They where shipped fast, to the Netherlands in a week. The boards work super good, just had to find the right INT port but with the help of the ultimate support this was easily done.

David | March 29, 2021

Great shortcut for using Bourns ACE 128 Encoder w/ Arduino!

For High Resolution Absolute Encoder - 128 positions

Works great! Could use a bit of documentation / pictures for mechanical engineers... This saved a ton of time and frustration. Thanks!

Response from Red Hunter | March 29, 2021

My engineering CAD skills are vestigial, but I did find this stp file at the Bourns website. My Eagle board designs are on github with the code. Hopefully you can put them together to meet your needs? https://bourns.com/engineering/ace/eaw0j-c24-xxxxxxx.stp

Knud | March 7, 2021

OK

For High Resolution Absolute Encoder - 128 positions

OK but better documentation is needed for DIY use. Datasheet is too complex .. Transportation took too long.

Response from Red Hunter | March 8, 2021

Sorry about the shipping delay - the US Postal Service is in a bit of a mess at the moment, it's very hit and miss. Usually I'm seeing international shipments delivering in 2 weeks, but there have been a couple where it just sat in a warehouse somewhere for an extra month. Hopefully this will get back to normal later this year.

If you are using these on the Arduino, ignore the ACE datasheet and follow the instructions in the github readme and the comments in the library file and the example sketches. If you are not using these on Arduino and writing support from scratch on another platform, feel free to adapt from the Arduino code.

If stuck, please send me a message through Tindie, I should get a notification and be able to respond quickly.

Connor | Sept. 2, 2020

Fantastic Solution

For 0802 LCD I2C Adapter

Works a treat, just what I needed to connect my 0802 LCD with an I2C Backpack. Shipping was very quick and arrived in great time.

Jeff | Dec. 3, 2019

Great idea and works perfectly

For OctosonarX2 - connect 16 x HC-SR04 to Arduino

We are building a large robot for commercial demonstration purposes and needed a way to rapidly get from idea to prototype and as such have been looking for turn-key time savers and stumbled on the Octosonar x2. We have purchased the full kit and after a little start and stop in the "how do we connect it?" department everything is now working great. Very well built and the idea is very straight forward.

Lessons learned.. watch the video on YouTube (several times) and you will figure out that you only need the center rows of pins soldered and connected and not the outer ones. Look closely at the cables in the video and you will note that only two per corner board. We did not see this and wondered why we had been shorted on headers and cables. There is nothing printed and not so much in the way of a manual so be prepared to be a little self sufficient in this regard. It all became clear after a little messing about and now works perfectly.

For any that may be curious, we are using the Octosonar x2 as the front half sensors to compliment the Lidar and standard HC-SR04 for the sides and rear. All of this goes back to one dedicated Arduino.

We are very pleased and will soon be purchasing a second set as spare and plan for using it on our next design as well.

Well done creator!

Response from Red Hunter | Dec. 4, 2019

Thanks for the feedback, I'll try and make up a clear diagram for the connections to reduce the head-scratching!

Michael | Nov. 21, 2019

Nice Arduino-compatible continuous rotation absolute encoder

For High Resolution Absolute Encoder - 128 positions

We needed an absolute encoder capable of continuous rotation that was compatible with Arduino for a robotics swerve drive module, this one fit the bill perfectly. It also supports remembering the position even if it gets shut down, so we were able to replace an encoder/limit switch setup with a single sensor. Super easy to get up and running, fast enough to be used in a control application.

Response from Red Hunter | Nov. 21, 2019

Thank you for the review. I originally used these in a similar manner in my Dalek head automation. Be aware that the datasheet says they are good for "50,000 shaft revolutions minimum" so the sensor may wear out after a lot of continuous use in a robotics environment. Having said that, I've never heard of one actually wearing out.

Exalon | March 5, 2019

Neat product

For OctosonarX2 - connect 16 x HC-SR04 to Arduino

Great for deploying auto sensing bot. It took longer than expected getting them to work on RPi (not enough guidances out there for new starter) with fastest response time, but easier on Arduino.

Robert | Nov. 2, 2018

Couldn't be better

For Octosonar - connect 8 x HC-SR04 to Arduino

Originally brought this to use with a Raspberry Pi but ended up using it with an Arduino uno and an Adafruit ItsyBitsy 5v. I can say it does exactly what you want to to and I couldn't ask for more. Great documentation on github and easy enough for a noob like me to figure out. The provided code is well written and easy to understand and edit to suit your needs. Postage was about a week to the UK from the USA (although the tracking seemed to get confused, can't blame seller, I guess the US Postal Service need to up their game). In all 10/10 thanks for building a great product!

John | Sept. 5, 2018

Great product. Fantastic support

For Octosonar - connect 8 x HC-SR04 to Arduino

I began with the Octosonar 8 and have built an autonomous robot using the board+mounts. The I2C interface makes it easy to add 8 sensors to my arduino. Everything works like a charm. I am fairly new to Arduino and required some hand holding. The support I received was extremely helpful. I now have purchased the OctosonarX2 using 12 sensors. It works like a charm.

William | April 12, 2018

Works as advertised first try

For OctosonarX2 - connect 16 x HC-SR04 to Arduino

I used this product to add obstacle avoidance to a chassis with skid steering.

Everything worked first try with no troubleshooting needed.

I had to intuit how to put it together from the parts photos but it wasn't hard. Assembly involved a bunch of soldering - if you're slow like me plan about an hour.

Getting the sensors at the right angles was tricky, most of mine are ~5 degrees above or below the horizon line. Did not appear to affect navigation. Mounted easily to actobotics pattern plate.

After setup you will need to manually identify the sensors one by one to know how to address them.

The refresh rate for the setup seems pretty slow, maybe 250ms? This is my first use of ultrasonics so maybe that's expected. Practically speaking it makes it tricky to do something like smoothly slow based on distance, you'll have to use sampling and interpolation to get an effect like that. The readings are quite consistent and stable.

The actual layout of the sensors, with 2 per Cardinal direction and 1 per diagonal, is not ideal for a larger bot - mine is 10" wide and a dead center table leg results in a collision. I plan on reconfiguring mine to rotate the front sensor clusters so that the center sensor in each cluster points forward, and the others point 45 degrees off of center, creating a protective triangle in front of the bot for emergency braking when it sees a table leg etc.

Overall I'm pleased with the kit for it's price and found it well designed. I would recommend it for a chassis that needs emergency braking capability in multiple directions. To use it for navigation/mapping shouldnt be super hard if you have the necescesary feedback about movement and rotation. I would not recommend this kit for bots intended to move faster than 0.5 m/s.

Julien | March 26, 2018

Octosonar HC-SR04 to France

For Octosonar - connect 8 x HC-SR04 to Arduino

Thanks
Fast delivery to France : 10 days
Good product, good quality.
Perfect !

Livraison vers la France très rapide : 10 jours
Emballage très soigné.
Parfait !

Jim | Jan. 25, 2018

This device works as designed

For Octosonar - connect 8 x HC-SR04 to Arduino

I am using the Octosonar on a robot rover. It appears to be doing a great job of cycling through the ultrasonic sensors and enabling the software to compute distances. I am a newbie with arduino and coding and I with some learning time was able to get it up and running so that the rover can steer autonomously.

Michał | Nov. 24, 2017

Great quality for great price :-)

For Octosonar - connect 8 x HC-SR04 to Arduino

I was looking for product like this in few other places, but only here I've found product that meets my needs. Thank you Red Hunter! :-)

Roger | Oct. 16, 2017

very nicely done

For OctosonarX2 - connect 16 x HC-SR04 to Arduino

Very nicely done!
oh, I have to type 100 characters... I guess I will repeat the same a few times :)
very nicely done!

Roger | Oct. 16, 2017

a very nice product

For Octosonar - connect 8 x HC-SR04 to Arduino

Very nicely done!
this takes much of the pain out of managing multiple sensors! see the octosonarV2! twice the sonars!

Roy | June 5, 2017

Great product

For Octosonar v1 - connect 8 x HC-SR04 to Arduino

Product works as advertised and very useful if you need multiple ultrasonic with limited i/o. Seller was nice and followed up to make sure everything was fine.

Daniel | April 9, 2017

Excellent product & great service

For Octosonar v1 - connect 8 x HC-SR04 to Arduino

Vendor is very attentive to detail. Well packaged and arrived on a timely basis. The product was exactly as described and example code provided to get you up and running . Good communications - even after the sale - vendor inquired about condition of package and contents upon arrival. It is a bit of a niche product but if your "maker journey" takes you in this direction it is an excellent and inexpensive item to have along. I would readily purchase from Alastair again.