Difference between revisions of "Arduino"
| Line 13: | Line 13: | ||
===heating system=== | ===heating system=== | ||
;version 2: set up a chrontab file that does something | ;version 2: set up a chrontab file that does something | ||
::in php | ::in php [http://stackoverflow.com/questions/8532304/execute-root-commands-via-php execute-root-commands-via-php] | ||
:::create a crontab file | :::create a crontab file | ||
:::install it | :::install it | ||
:write a php file that PUTS some light on on the AVR | :write a php file that PUTS some light on on the AVR | ||
Revision as of 15:20, 11 December 2012
electronics
control narratives
pond pumps
Pick up my phone, go to a web site, have there be a series of buttons on, off, 10, 20, 30, 60.
The buttons could be from a client side jquery-mobile page. Timing would seem suited to the server. Server would send an on message and start a timer. After the time elapsed it would send an off message. Client would poll server to see what the status is and the time remaining.
version 1
Click the button pump goes on in pond.
- send '1' to arduino, to tun on relay
- send '0' to arduino to turn off device
Arduino-Ethernet-Shield-Tutorial
heating system
- version 2
- set up a chrontab file that does something
- in php execute-root-commands-via-php
- create a crontab file
- install it
- in php execute-root-commands-via-php
- write a php file that PUTS some light on on the AVR
- collect data from AVR and store it in mysql
- view the saved data on a client using javascript
- version 1
- Take random readings from analog pins start an etehrnet client that sends them out to http://cosm.com every ten seconds
final narrative
An Avr takes in temperature readings from multiple locations. At the control room the AVR hub polls temperature and for each zone knows the set temperature, the default temperature and whether or not a zone is ON and how long it has been on. If it doesn't hear from the (linux) scheduler then it falls back to act as a multi-zone thermostat set at the default temperatures. Through a rudimentary display it would allow you to set temperatures for each zone.
The scheduler would take temperature data from the AVR client and would know the schedule. Whenever a schedule change point would come up, it would notify the AVR and instruct it to change the set point. It would do this via chrontab maybe.
The controller would on the client probably an HTML5/javascript client. Here you can read the temperatures and view the schedule. You can override or change the schedule.
possible routes
A cheap circuit like http://www.craig.copperleife.com/tech/thermo/ or more complicated http://www.rentron.com/project01.htm using http://datasheets.maximintegrated.com/en/ds/DS1620.pdf which can be overridden by server program that controls multiple thermostats.
ReST
- http://rest.elkstein.org/2008/02/using-rest-in-php.html
- http://blog.garethj.com/2009/02/17/building-a-restful-web-application-with-php/
Cron Jobs
- http://net.tutsplus.com/tutorials/php/managing-cron-jobs-with-php-2/
- http://stackoverflow.com/questions/4421020/use-php-to-create-edit-and-delete-crontab-jobs
schematics, circuits, projects
parts
needed parts (next order)
- thermistors
- 5K and 10K POTS
DS1620 Digital Thermometer and Thermostat
In a thermostat circuit
DS18B20 Dallas 1-wire temperature sensors
Graphic LCD 84x48 - Nokia 5110
- Graphic LCD 84x48 - Nokia 5110 runs on 3.3v so you have to interface carefully
KTM-S1201 lcd module
DK-duino DKUNO Atmega328p-20PU USB Board
Descriptions
Compatible with Arduino duemilanove 2009 Microcontroller: ATmega328P-PU USB to RS232 Controller: PL2303HX I/O compatible with Arduino UNO R3 Operating Voltage (logic level) : 5V Input Voltage (recommended) : 7.2-11.1V Input Voltage (limits) : 6-20V Package Content
1*DK-duino DKUNO Atmega328p-20PU USB Board 1* USB 2.0 cable
Ethernet Shield With Wiznet W5100 Ethernet Chip
( latest version ) Compatible Duemilanove (168/328) / Mega (1280/2560) / UNO
Product Description
This is the latest version of the Ethernet Shield. This Arduino Ethernet Shield which is based on the Wiznet W5100 Ethernet Chip gives you an easy way to get your Arduino Online. It is directly supported by Arduino official Ethernet Library. It adds a micro-SD card slot, which can be used to store files for serving over the network. It is compatible with the Arduino Duemilanove (168 or 328), Uno as well as Mega (1280/2560) and can be accessed using the SD library.
The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield.
