Archive for June, 2019

Micro Swiss hot end installation

Posted in 3D Printing on June 22, 2019 by asteriondaedalus
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Micro Swiss All Metal Hotend Kit for Flashforge Finder / Inventor 2 / — Micro Swiss Online Store

Posted in 3D Printing on June 22, 2019 by asteriondaedalus

micro swiss full metal hot end

Added one off these to my Finder. Seems to have fixed a few problems I was having.

Prototype boards on the way

Posted in OpenSprinklette on June 17, 2019 by asteriondaedalus

The problem for powering the modules, used for opensprinklette, is that the sprinkler solenoids are driven by 24VAC.

So, I have found a circuit idea to sort that, added a few twists and now I have three prototypes:

  1. A basic board with TVS, bridge, electrolytic cap and Pololu Step-Down Voltage Regulator. I am using Pololu four pin step-down modules and the idea is you use a 3.3V, 5V or 9V depending on how you power up your board. (Yep, after buzzing out the prototypes I will correct TVT to TVS 🙂 )
  2. An Arduino UNO shield, with the 24VAC to 9VDC to drive the VIN pin on the UNO headers.
  3. A Wemos D1 Mini shield to with the 24VAC to 5VDC to drive the 5V pin on the headers.

I will buzz the boards out once they turn up. I will get the software into github for the Wemos boards. I am still testing the node-red scheduling stuff as I am trying to get a scheduling option up that doesn’t need to connect to a google calendar as well.

I have also come across hass.io and home-assistant so I will also look at that option.

In the meantime, I am doing a kotlin and kotlin + android course to get up to speed to write an android app to work with the system as well.