Simple test

Ensure your device works with this simple test.

examples/mcp4728_simpletest.py
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
import board
import busio
import adafruit_mcp4728

i2c = busio.I2C(board.SCL, board.SDA)
mcp4728 =  adafruit_mcp4728.MCP4728(i2c)

mcp4728.channel_a.value = 65535 # Voltage = VDD
mcp4728.channel_b.value = int(65535/2) # VDD/2
mcp4728.channel_c.value = int(65535/4) # VDD/4
mcp4728.channel_d.value = 0 # 0V