This is an old revision of the document!
# LittleWire
# Overview
I can't think of anything to add to the official description of the LittleWire. For me, it's a cool tool to build, and a cool tool to have on hand, mostly for programming AVR chips…
# Perfboard
A while back, I used a round piece of perfboard to make a smd-like LittleWire… No schematics, it's directly inspired from the Schematic of the Little Wire. The only difference is: D+ and D- are swapped to make it easier to solder…
It's a little bit messy, but it worked, and still does its job !
# SMD
I was a little bored and wanted to practice SMD soldering, just for fun. So I made an SMD version of the LittleWire.
* Small footprint * MiniUSB connector * Easy to use header ⇒ Can be plugged in a breadboard ! * Micronucleus bootloader
## PCB I still haven't made a schematic, so please, refer to the annotated PCB to assemble the board. Sorry, it's a little bit crowded, but everything should fit nicely… 600 DPI image, as usual around here…
Pin 1 of the Attiny is on the top left of the board
## Components
Required
* D1, D2: 3.6v Zener Diodes * R1, R2: 39 Ohms * R3: 1.5 kOhms * C1: 1 µF * Attiny85 * 6 Pins Header, straight * MiniUSB connector
Optional
* C2: 68 nF * D3: Blue LED * R4: 1 kOhms
## Pinout
From the pin 1 (bottom to top):
* Vcc * Gnd * /Reset * SCLK * MISO * MOSI
Once you get used to this pinout, it's very handy to use ^^
## Result
