Difference between revisions of "I2C DAC"
From BitWizard WIKI
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− | Based on the MCP4728 chip from Microchip. | + | Based on the MCP4728 chip from Microchip.<br> |
+ | http://ww1.microchip.com/downloads/en/DeviceDoc/22187a.pdf | ||
+ | |||
Set a voltage: | Set a voltage: |
Revision as of 17:46, 21 March 2014
Based on the MCP4728 chip from Microchip.
http://ww1.microchip.com/downloads/en/DeviceDoc/22187a.pdf
Set a voltage:
sudo i2cset -y 1 0x60 0x40 0xff 0xf0 i ^^ ^ < Voltage bits
explanation of the arguments:
-y don't ask confirmation 1 number of the I2C bus (0 on older raspberry pi's) 0x60 address of the DAC, use 0x61 for the other DAC. 0x40 configuration: normal. 0xff high 8 bits of the value 0xf0 lower four bits of the value (in the high nibble)