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2019-10-18 Quadropod - Mission completed
After several iterations with code and experiments with body positions, here’s the final version of the Quadropod for your judgement. Controlled over Bluetooth with a general purpose controller Android app.
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2019-10-04 Quadropod - The library
Today I focused on several things:
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2019-10-03 Quadropod - Rework complete
Rework of the code is complete. Now it’s completely based on the timer interrupt. I must admit, it’s a huge difference in the way motion feels and is programmed. The level of control over what happens and when is tremendous. Exciting!
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2019-10-02 Quadropod - Switching to interrups and timers
After a bit of experimentation I finally figured that working with servos from the main program loop is not very efficient and precise. The main issue I’ve been facing is synchronous and controlled rotation of several servos to different angles.
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2019-09-30 Quadropod - Walking
Short record of the first baby steps. Woo hoo!
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2019-09-30 Immutability and Phoenix LiveView
In my daily work I’m going back and forth between Rails and Phoenix with the healthy dose of LiveView. This change in paradigm sometimes shoots me in the leg. This post is written in the form of a self-reminder.
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2019-09-29 Quadropod - First moves
Parts printing and assembly has finished. After initial calibration, I’m now writing simple scripts to see the limits of the platform. We started with push ups:
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2019-09-27 Quadropod - New version
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2019-06-07 Writing mnesia data migrations in Elixir
Migrating data in Mnesia is traditionally a dark matter. Even if you understand the concept of translating tables, it’s still not clear how to organize your migrations so that they are picked up and run during the application start.
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2019-03-19 Схема проверки КТ117А
Cхема проверки однопереходного транзистора КТ117А с небольшим описанием.