search

projectzen / 3-Axis-Prototyping-Machine

MIT License
0 stars 0 forks source link

Load Sensor Circuit Diagram [3D Printer] #16

Open egladman opened 9 years ago

egladman commented 9 years ago

In order pause/resume functionality we first need a way of determining the filament left on the spool. We will be using a load sensor similar to this: https://www.sparkfun.com/products/10245 to accomplishes this. If we were to interface this directly with an arduino the signal would be incredibly weak, so we first need to amplify the signal. We will be using the INA125P (http://www.ti.com/lit/ds/symlink/ina125.pdf) to do just this. I need you to design the circuit in UpVerter. I already have the load sensors and chip.

Hardolaf commented 9 years ago

Finished.

egladman commented 9 years ago

The load sensor wiring diagram is wrong. The sensor has 3 wires as opposed to 4. Please revise.