Cressi Donatello Computer

The Donatello is the successor to the Leonardo model, entirely designed, developed, and manufactured in Italy by Cressi Elettronica. Its modular design provides robustness and ease of maintenance.

Interface and display
It features a high-contrast UFDS (User Friendly Display System) screen with oversized digits. Its menu is optimized for easy reading even in demanding situations, with clear data separation and backlighting that can be activated by a button or alarm.

Operating modes
The Donatello includes four main modes:

Dive (Air / Nitrox): Allows you to configure a Nitrox mix with adjustable PO₂, RGBM algorithm with optional deep stop and adjustable safety factors (SF0, SF1, SF2).

Gauge (Depth Gauge): functions as a depth stopwatch when decompression calculation is not required.

Free / Apnea: includes metrics such as maximum depth, dive time, surface intervals, configurable alarms, etc.

Off: Deactivates diving functions to use the device as a watch or in water activities without triggering unnecessary alarms.

Power and connectivity
The battery is user-replaceable without tools. It has an optional USB/Bluetooth connection interface for data transmission to a computer or mobile app compatible with Windows or Mac.

Some additional features

12/24h watch with calendar and chronometer.

Logbook of up to 50 dives per modality or 40 total hours.

Configurable visual and audible alarms (ascent rate, excessive PO₂, maximum depth, decompression).

"Reset" option to cancel residual nitrogen saturation, useful for rental or educational centers.

Graphic indicator of oxygen toxicity to the CNS.

Depth gauge calibrated in salt water for greater accuracy.

Relevant technical specifications

CPU: ARM Cortex M3, 32-bit, 14 MHz frequency.

Flash Memory: 256 KB + 32 KB RAM.

High intensity backlight: 4,000 millilux.

User-replaceable battery (CR2430 / CR2450) without tools.

Memory for up to 50 dives per mode or 40 hours.

Metric or imperial display.