Datasheet

6 Et cetera

6.1 Parts list

Apart from the normal stuff found in well-assorted workbench drawers such as screw-

drivers and a soldering iron, the following parts are required to assemble the ”product”

mentioned in this document. It may be possible to order most of the parts from one

single supplier — the below list contains the units which are conﬁrmed to ﬁt the cause,

along with the name/URL of the various suppliers which they were once ordered from.

Female/female jumper wires to connect the VP2 console to the STK500 during the de-

velopment/testing stage. Adafruit.com (http://www.adafruit.com) product

# 266 @ $6.95. Also add female/male and male/male jumper wires, and keep

them short — long wires won’t work for SPI communication.

Atmel AVR ATtiny25/45/85 microcontroller. Table 3 lists part numbers and prices. Please

note that the 10 MHz versions of these MCUs have also been used with success.

DIL-8 socket with 2.54mm pin spacing such as the TE Connectivity 1-390261-2. Farnell

(http://www.farnell.no) part # 1101345 @ NOK 1.11. Newark (http://

www.newark.com) part # 52K3276 @ $0.19.

Extension connector, 2mm/20-pos. After a minor modiﬁcation, this part is extremely

useful to ”elevate” the expansion connector at the rear of the console — to gain

easy access to the individual connectors. Digi-Key Corp. (http://www.digi-key.

com) part # ESQT-110-02-G-D-760-ND @ $6.28.

STK500 programmer/starter kit. Farnell (http://www.farnell.no) part # 3884429

@ NOK 613. Newark (http://www.newark.com) part # 70C6272 @ $82.96.

BASCOM-AVR compiler/IDE for the actual programming of the ATtiny25/45/85. MCS

Electronics (http://www.mcselec.com). The demo version is FREE, whereas

the purchase-as-download version is just € 89.

SparkFun FTDI basic breakout, 3.3V version level converter.

SparkFun (http://www.sparkfun.com) product # DEV-09873 @ $14.95.

Other level converter as appropriate, such as the MAXIM MAX3232 series and oth-

ers. There are plenty of options, but the above mentioned FTDI basic breakout

remains the easiest one to hook up via USB.

http://meteo.annoyingdesigns.com 31