GP8XXX-IIC

The GP8XXX-IIC module provides an interface for controlling DAC (Digital to Analog Converter) devices over the I2C protocol. This module supports various DAC models with different resolutions and output voltage ranges.

Features

• I2C Communication: Utilizes the smbus2 library for communicating with DAC devices over the I2C bus.
• Output Ranges: Supports different output voltage ranges including 0-5V, 0-10V.
• Support Multiple DAC Models:
  • GP8302: 12-bit DAC I2C to 0-25mA/4-20mA
  • GP8211S: 15-bit DAC I2C to 0-5V/0-10V
  • GP8512: 15-bit DAC I2C to 0-2.5V/0-VCC
  • GP8503: 12-bit DAC Dual Channel I2C to 0-2.5V/0-VCC
  • GP8413: 15-bit DAC Dual Channel I2C to 0-5V/0-10V
  • GP8403: 12-bit DAC Dual Channel I2C to 0-5V/0-10V

Installation

You can install the GP8XXX module from PyPI using pip:

pip install GP8XXX-IIC

Example

import time
from GP8XXX_IIC import GP8403

GP8403 = GP8403(i2c_addr=0x5F)

while GP8403.begin():
    print("init error")
    time.sleep(1)

# Optional
# GP8403.set_dac_outrange(GP8403.OUTPUT_RANGE_10V)

# Chanel 1: 6.721V
GP8403.set_dac_out_voltage(voltage=6.821, channel=0)

time.sleep(3)

# Chanel 2: 2.774V
GP8403.set_dac_out_voltage(voltage=2.774, channel=1)

time.sleep(3)

# Chanel 1 & 2: 0.253V
GP8403.set_dac_out_voltage(voltage=0.253, channel=2)

Tested devices

DAC Module	Tested
GP8503	❌
GP8211S	❌
GP8512	❌
GP8512	❌
GP8413	✅
GP8403	✅
GP8302	❌