This is the revision B version of the Tether RoboBrick. The status of this project is that it has been replaced by the revision C version.

Tether Robobrick (Revision B)

Table of Contents

This document is also available as a PDF document.

• 1. Introduction
• 2. Hardware
  • 2.1 Circuit Schematic
  • 2.2 Printed Circuit Board
• 3. Issues

1. Introduction

The Tether RoboBrick is a RoboBrick that connects a master RoboBrick to a computer via a stanadard 4-wire telephone cord extension.

2. Hardware

The hardware consists of a circuit schematic and a printed circuit board.

2.1 Circuit Schematic

The schematic for the Tether RoboBrick is shown below:

The parts list kept in a separate file -- tether.ptl.

2.2 Printed Circuit Board

The printed circuit board files are listed below:

tether_back.png

The solder side layer is shown below:

tether_front.png

The component side layer is shown below:

tether_artwork.png

The optional artwork layer is shown below:

tether.gbl

The RS-274X "Gerber" back (solder side) layer.

tether.gtl

The RS-274X "Gerber" top (component side) layer.

tether.gal

The RS-274X "Gerber" artwork layer.

tether.drl

The "Excellon" NC drill file.

tether.tol

The "Excellon" NC drill rack file.

3. Issues

The following fabrication issues came up:

• The holes for N2 (size 3) are too large and need to be made smaller (size 2).
• Think about rotating the chip 90 degrees.