dln2-adc-wrapper 0.1.0

A Python library for DLN2 ADC adapters. Originally developed for Pico USB IO Board.

DLN2 ADC Wrapper

A Python library for interfacing with DLN2 USB-to-ADC adapters. This package targets the Pico USB I/O Board firmware in this repository and mirrors the packaging style of the other standalone DLN2 wrapper packages.

Features

• Low-level DLN2 USB ADC client built on pyusb
• High-level ADC helper for enabling channels and reading raw samples
• Raw 10-bit readings with optional voltage conversion
• Read-one and read-all channel helpers
• Command-line helpers for channel info and live watch output
• Pure Python, no compiled extension

Firmware Notes

The current firmware exposes three ADC channels:

• channel 0 -> GP26 / ADC0
• channel 1 -> GP27 / ADC1
• channel 2 -> GP28 / ADC2

CHANNEL_GET_ALL_VAL returns space for eight values because it matches the DLN2 driver shape, but only the first three values are real on this firmware.

Installation

git clone https://github.com/syabyr/dln2_adc_wrapper.git
cd dln2_adc_wrapper
pip install .

For development:

pip install -e ".[dev]"

Quick Start

from dln2_adc_wrapper import ADC

with ADC() as adc:
    print(adc.get_channel_count())
    adc.enable_channel(0)
    raw = adc.read_channel(0)
    print(raw, adc.to_voltage(raw))

Command-Line Tools

dln2-adc-info --help
dln2-adc-watch --help

Development

make test
make build