# $Id: MEEPS_ECPE5_2004.txt,v 1.3 2004/01/17 00:12:45 jerry Exp $ # $Source: /home/cvsroot/MEEPSTop/MEEPS_ECPE5_2004.txt,v $ Started 2004/01/14 Requirements for the ECPE-5, 2004, version of MEEPS - CPU and DISPLAY only subsections only. - fix original MEEPS problems (the most serious are already complete). - new power supply section using 5v regulator, 9v unregulated input. (dropped 1/16/03 after discussion with Dick) - if space allows, use blocking diode for reverse voltage protection. (dropped 1/16/03 after discussion with Dick) - External 5v power supply will be used. - change caps for Max232 (1.0uf vs. 0.1/0.47uf for Max3232) - leave leds on the CPU section as-is, drop square body part from the BOM. - increase spacing for D107. - default jumpers (dropped 1/15 per email from Dick. Jumper wires will be used instead of the headers). - assume 50+ boards. - needed by class on March 3 - turn around the pot on the display board. - the pot (R202) is listed as a 10k resistor on the BOM, fix it. - move all docs to OpenOffice, dropping MS-Office. Time Estimates: Specification: 1 hr Research: 2 hr Design: 2 hr PCB layout: 4 hr Documentation: 2 hr Project Admin: 2 hr