tla2528 0.1.0

Python library for TLA2528 ADC on Raspberry Pi and Linux

TLA2528 Python Library

Python library for interfacing with the TLA2528 family of ADC chips on Linux (Raspberry Pi).

Overview

The TLA2528 is a 12/16-bit, 8-channel ADC with 8 digital I/O pins. It supports:

• Manual and auto-sequence sampling modes
• Oversampling ratios (2x, 4x, 8x, 16x, 32x, 64x, 128x)
• Configurable analog and digital I/O
• Alert triggers based on voltage thresholds

Datasheet: https://www.ti.com/lit/ds/symlink/tla2528.pdf

Installation

pip install tla2528

Quick Start

from tla2528 import TLA2528, Channel, OversamplingRatio

# Initialize the ADC
adc = TLA2528(
    bus=1,  # I2C bus number
    address=0x10,  # Default I2C address
    avdd_volts=3.3,
    analog_inputs=[Channel.CH0, Channel.CH1, Channel.CH2],
    oversampling_ratio=OversamplingRatio.OSR_16
)

# Read single channel
voltage_mv = adc.get_mv(Channel.CH0)
print(f"Channel 0: {voltage_mv:.2f} mV")

# Read all configured channels
voltages = adc.get_all_mv()
for i, voltage in enumerate(voltages):
    print(f"Channel {i}: {voltage:.2f} mV")

Features

• ✅ Manual and Auto-Sequence ADC reading modes
• ✅ Oversampling for increased precision
• ✅ Digital input/output configuration
• ✅ Automatic calibration support
• ✅ Thread-safe operations
• ✅ Comprehensive error handling

Requirements

• Python 3.8+
• Linux with I2C support (Raspberry Pi, etc.)
• smbus2 library

Hardware Connection

Connect the TLA2528 to your Raspberry Pi I2C bus:

• VDD → 3.3V
• GND → Ground
• SDA → I2C SDA (GPIO 2)
• SCL → I2C SCL (GPIO 3)

Enable I2C on Raspberry Pi:

sudo raspi-config
# Interface Options → I2C → Enable

License

MIT License - see LICENSE file for details.

Contributing

Contributions are welcome! Please open an issue or submit a pull request.