I enjoyed doing some low tech projects over the last few years.
The first is a Cat Deterring System (CDS). I love cats and we always have cats outside the house that we feed. However, we don’t like them sneaking into the house and stealing food. So I developed CDS.
I also developed all kinds of tools, hacks and also saved money on refurbishing cheap remote controls.
My water pressure missile is described here
Eli's Blog 