Recently I needed to run millions of API calls to an internal service. API calls are IO blocking. This means that when my service calls the…

Sir Tim Berners-Lee’s open letter to mark the occasion of the Web’s 35th Birthday.

Setting up VS Code for Ruby on Rails development can be tricky, so I wrote this article to help. In it, I share different VS Code extensions for things like autocomplete, linting, formatting and more! I've even put together a handy extension pack to get you setup fast.

Developer Update - I have combined support for various spinning LiDAR/LDS sensors into an Arduino LDS library with a single platform API. You can install this library from the Arduino Library Manager GUI.

Recently, I got a Rails app running on AWS Elastic Beanstalk for the first time. While other tutorials exist, this one walks you through everything you need step by step — even if you don’t have …

Clean Up Your Mess - A Guide to Visual Design for Everyone URL: https://www.visualmess.com/ Type: link Domain: visualmess.com Notes: This is one of my favorite, super-simple, guides to creating nice designs. These elementary rules-of thumb go a long way to making professional looking designs - or just avoiding the most obvious design mistakes. And of course, because design is subjective, you may have very different opinions.

Write code top-down URL: https://www.teamten.com/lawrence/programming/write-code-top-down.html?utm_source=abyteofcodingnewsletter&utm_medium=newsletter&utm_campaign=a-byte-of-coding-issue-361 Type: link Domain: teamten.com Notes: Nice article but I disagree with the conclusion. I...

The Shirky Principle: Institutions Try to Preserve the Problem to Which They Are the Solution – Effectiviology URL: https://effectiviology.com/shirky-principle/?utm_source=hackernewsletter&utm_medium=email&utm_term=fav Type: article Domain: effectiviology.com Notes: “The Shirky p...

A framework for rapid development and deployment of production-ready RAG systems - SciPhi-AI/R2R

Charlie Munger

How to Perform Pose Estimation Using an ArUco Marker – Automatic Addison URL: https://automaticaddison.com/how-to-perform-pose-estimation-using-an-aruco-marker/ Type: article Domain: automaticaddison.com Notes: One of many articles helping with the math of computing pose from aruco markers. Unfortunately the algorithms are different and give different results. By the way the Automatic Addison web site is a treasure trove of robotics ideas, explainers and code.

A comprensive guide to all the different options of glue and tape available for architecture model building.

6. Camera Hardware — Picamera 1.13 Documentation URL: https://picamera.readthedocs.io/en/latest/fov.html Type: link Domain: picamera.readthedocs.io Notes: More than you ever wanted to know about how the PiCamera works. As usual, things are more complex than you expect when you get into them!

v4l2-ctl - cli for managing camera hardware URL: https://man.archlinux.org/man/extra/v4l-utils/v4l2-ctl.1.en Type: link Domain: man.archlinux.org Notes: Very useful tool to work with camera parameters. I don’t even know what v4l2 is, but all kinds of camera parameters can be displayed and changed.

camera_calibration - ROS Wiki URL: http://wiki.ros.org/camera_calibration Type: link Domain: wiki.ros.org Notes: Really Important package to allow you to calibrate the camera. It is here because I lost it for a while (forgot the name) and now I found it again!

We learn how to use OpenCV with ROS in a pick and place task and how to apply Computer Visions algorithms to 3D camera data.

Mining of Massive Datasets URL: http://www.mmds.org/#ver21 Type: link Domain: mmds.org Notes: Downloadable textbook about Mining of Massive Datasets by Jure Leskovec, Anand Rajaraman, Jeff Ullman.

Rails debugging dev tools for faster development. Inspect your request details (queries, logs, cache, jobs and more).

ROS opencv camera driver that uses cv::VideoCapture - OTL/cv_camera

This post documents how we can fix the problem of loose object is corrupt in git.