552
edits
| Line 137: | Line 137: | ||
* '''Bare Bones Breadboard Version''' | * '''Bare Bones Breadboard Version''' | ||
If you just want to knock something up quickly and cheaply on a breadboard it can be done for about £12 with a stripped down version. It can be programmed and powered using the FTDI serial cable - becoming a standard bit of kit for talking to microcontrollers. Ken has prototyped this and it is successfully sending temperature readings up to Pachube. [http://www.pachube.com/feeds/8729 Pachube Feed] | If you just want to knock something up quickly and cheaply on a breadboard it can be done for about £12 with a stripped down version. It can be programmed and powered using the FTDI serial cable - becoming a standard bit of kit for talking to microcontrollers. Ken has prototyped this and it is successfully sending temperature readings up to Pachube. [http://www.pachube.com/feeds/8729 Pachube Feed] Another board is using [http://john.crouchley.com/blog/archives/706 John Crouchley's GET sketch] to retrieve and print this same data from the Pachube feed | ||
* 1 ATmega328 microcontroller (with Arduino bootloader) - CoolComponents £5.00 | * 1 ATmega328 microcontroller (with Arduino bootloader) - CoolComponents £5.00 (£2.81 without bootloader) | ||
* 1 ENC28J60 ethernet controller - CoolComponents 1.99 | * 1 ENC28J60 ethernet controller - CoolComponents 1.99 | ||
* 1 Magjack breakout board - CoolComponents £1.99 | * 1 Magjack breakout board - CoolComponents £1.99 | ||
* 1 | |||
* 1 | The remainder of the parts came from Farnell Components: | ||
* 1 | |||
* 4 | * 1 74AHC125 quad buffer 174-9617 | ||
* | * 1 16MHz crystal 161-1761 | ||
* 2 | * 1 25MHz crystal 161-1783 | ||
* 2 | * 4 22pF ceramic capacitors 114-1760 | ||
* 1 | * 10 100nF ceramic capacitors 121-6444 | ||
* 1 | * 2 10nF ceramic capacitors 121-6435 | ||
* 1 | * 2 10uF electrolytic capacitors 945-1056 | ||
* 4 | * 1 7805 5V regulator 156-4483 | ||
* 2 | * 1 78L33 3V3 regulator 146-7768 | ||
* 3 | * 1 2K resistor 934-1480 | ||
* 1 | * 4 51ohm 1% resistors 934-3342 | ||
* 1 | * 2 270 ohm resistors 933-9353 | ||
* 1 | * 3 10K resistors 933-9060 | ||
* 1 | * 1 tact switch 181-3689 | ||
You will also need: | |||
* 1 breadboard | |||
* 1 FTDI USB-serial cable - becoming a standard bit of kit for talking to microcontrollers. | |||
* 1 CAT5 network cable to connect to router | |||
==Individual interests== | ==Individual interests== | ||
edits