Read Rope Prototype Version 1.1

A project log for Read Rope / Electronic Nerve

This is an open-source hardware project for a device that outputs a certain voltage depending on where the rope/wire is bent.

pablo-antonio-camacho-jrPablo Antonio Camacho Jr. 09/25/2019 at 05:010 Comments

I decided to change the resistors used.

A large load resistor was added at the output so that output voltage is not affected by a small resistance at the load.

Resistances of the resistors connected in series to path to circuit ground from output were changed because resistances of 1k,10k,50k,100k in parallel with a 1Meg ohm resistor at output gave a more linear relationship between output voltage and resistance at output.

The total cost of making 5 pcb prototypes would be TBD not including shipping cost and not including tubing to contain pcb prototype and push button when bent.

Parts List + Total Cost

Most Expensive to Least Expensive Items

  1. FlexPCB
  2. SPST-NC Tactile Switches
  3. 1Meg, 100k, 50k, 10k, 1k SMT Resistors

URL for Parts