# 1-Wire tester

Uses Arduino Pro Mini, Arduino Nano or similar, with ATmega328P.

LCD is HD44780, 2-line.

## Pinout

- D2 - RS
- D3 - R/W
- D4 - E
- D5..D8 - DATA4..7
- D9 - 1-Wire data, 4k7 pullup to 5V

## HD44780 connection

- GND
- +5
- contrast (potentiometer +5 - GND)
- RS
- R/W
- E
- D0-D3 ... to GND
- D4-D7 ... communication

## Usage

Everything is automatic, just connect 1-Wire devices to the data pin.
 
ROM code reading works in parasitic mode, but temperature measurement 
is implemented only in 3-wire mode.