Software: Overview

This project uses free open source software (FOSS). The operating system is Linux, which usually includes Apache Web Server and Perl. The graphs are generated with the Perl module GD::Graph. It should run under Windows. More detailed installation instructions are on the [Forums]. The code will be available at gitHub.

Linux Distributions

Linux distros that have been tested are:

1. Debian Wheezy
2. Lubuntu (lightweight Ubuntu)
3. Slackware 13.0

Reading the Sensors

Scale

Talking to the scale is straight forward. Usually send a short character string to the scale and listen for a reply. For the Adam Equipment: echo "G\r\n" > /dev/ttyS0 read -t 1 SCALE < /dev/ttyS0

To use the Cisco Linksys WRT160NL wireless router to talk to the My Weigh HD300 scale, first detach a process that sleeps for a second and sends a carriage return. Then read the data. The detached bit sleeps for a second, allowing the read to get latched onto the serial port, and then sends the command, which promptly returns data. 'sleep 1;echo -e "\r" > /dev/ttyUSB0' & read -t 3 SCALE /dev/ttyUSB0.