Technical tinkering with software, hardware, and whatever catches my interest
Analog signals transmitted through long wires can pick up a lot of noise – the wire will act as an antenna. High frequency noise can be filtered with a lowpass filter. I’ll design, implement, and test an RC filter. Following the posts about Botanix and Effectively killing a plant the project will use an analog soil moisture…
To prevent flooding when watering plants automatically I’ll design and implement a fallback hardware 555 timer to turn off water if the software fails to do so in due time. This is for my plant watering project Botanix – in-door watering requires certain precautions. This post could be called: Controlling Murphy’s Law To pump water…
I was planning to use LM393 Moisture Sensor for a plant watering system. First I build a small scale setup to test the sensor with unfortunate results. I could call this post: Effectively killing a plant Soil moisture is a key measurement in driving the plant watering system, therefore I want to monitor it carefully….
I want to automate plant watering with a Raspberry Pi Zero, a range of sensors, and controls. Because I have a hard time keeping herbs alive in my windowsill. Furthermore, as a software engineer I have a deep felt love for automation. And I like designing and building stuff. Below are my requirements. I will…
