1600W heat using weight sensor

[Phillipe]

Hi everybody, I want to build a small device that allows to turn on a heat using weight, kind of weight sensor can anybody help me with that?

 

[Harald Kapp]

Welcome to EP.

This sounds easy: use a mechanical switch attached to a lever or similar. The weight pushes the lever (or pulls on it), lever moves, switch closes. Use a counterweigth or spring to adjust sensitivity

 

[Alec_t]

Lever-operated microswitch

 

[Minder]

How much do you want to go in the design process.
You could use a load cell, they a couple of $ on ebay.
If you want to control the degree of heat.
See Microchip MCP3421 weight scale app includes software.
For simple heat on/off use a load cell and set a comparitor to detect if for a certain level output of the L.C.
Then use a SSR to turn the heater on.
M.