4-20mA Level Sensor for Kerosene Tank

I’ve been using an ultrasonic sensor in my Kerosene Tank (Home Heating Oil) for a while now, but was not happy with the stability of the readings. Especially on relatively warm days, as the fumes in the tank seemed to confuse the readings. So I decided to try a different type of sensor, in the form of a 4-20mA Liquid Level sensor. This article shows the setup and compares to the ultrasonic sensor.

 

Continue reading “4-20mA Level Sensor for Kerosene Tank”

openlapse Time-Lapse Rail Interactive 3D Models

Here’s a few 3D models of the time-lapse rail I’ve been working on. I’ve put a good bit of time into the models, as I feel it’s a good way of showing how the construction is done for the various parts of the rail. The last model is of the complete rail. I still have a few parts to add, like the Tripod Head and WiFi Antenna, but they do demonstrate the construction nicely.

See the Github repo for models, electronics designs, laser cutting info, software, etc. I’m adding more and more to that as I get the time. In the near future there should be enough info for people to easily build their own rails. And there are other posts in this blog showing more. Be sure to check them out.

Continue reading “openlapse Time-Lapse Rail Interactive 3D Models”

Seeed Studios Versus OSH Park Shipping to Ireland

So I ordered three sets of PCBs from OSH Park (USA) and Seeed Studios (China). They were ordered very close to each other. Here’s a breakdown on how quick they got here, and how much they cost. Interestingly, they all shipped the same day (June 5th).

Continue reading “Seeed Studios Versus OSH Park Shipping to Ireland”

Flashing the OpenLapse binary

In order to use the OpenLapse controller, it’s necessary to flash the firmware onto it. This article describes how to do that, and when you’re complete, you should be able to connect into the ‘openlapse’ WiFi hotspot with your smartphone and control your DSLR and motor. Even if you don’t have the additional hardware, you can still play with the user interface. I’d appreciate feedback. 🙂

Continue reading “Flashing the OpenLapse binary”

OpenLapse Timelapse Controller Parts and Assembly

Here’s the first in a series of posts on my Open Source Hardware project, entitled OpenLapse, which is a rail system for timelapse photography, including everything from the electronics, software, and physical hardware designs. It’s an evolution of a previous project, the Raspberry Pi based Timelaspe Rail, but this is designed to be simpler to build and use. A web interface is presented from the controller which generates a WiFi hotspot, and the user can chance the parameters for the timelapse, as well as manually control the motors on the rail.

Continue reading “OpenLapse Timelapse Controller Parts and Assembly”

Laser-cut face-plate for Heating System

As I’ve learned while doing home automation, it’s important for the finished project to look good, especially if it’s in a location that can be seen. 🙂

So when I was building the home-heating controller (as described here),  I decided to finish it off with a laser-cut face-plate.

Continue reading “Laser-cut face-plate for Heating System”

Wifi Home Heating Oil Monitor

This bit of Home Automation has been on my list for a long time. I usually find out that the home heating oil (kerosene) has run out when an orange light is illuminated on my boiler. At that stage, we’ll probably be without heating in the house for a day or two. So, I was looking at ways to measure the level of home oil in the tank that would give me a constant level indicator, and also not break the bank.

Continue reading “Wifi Home Heating Oil Monitor”