DACs
Digital to Analog Converters. These take serial or parallel data and turn them into an analog signal. Of course you can use a R2R resistor ladder but these are compact and can use fewer pins
| Image | Part # & Datasheet | Description | Distributor | Eagle library part |
|---|---|---|---|---|
 | MCP4921 | The cheapest 12-bit thru-hole DAC we found Input via SPI | Mouser Digikey | Adafruit:MCP4921 |
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