View source for Component: ADC QUAD + DAC (PCF8591) (Analog Input)

{| style="width:50%"
|-
| width="20%" style="color:gray;" | Author
| Matrix TSL
|-
| width="20%" style="color:gray;" | Version
| 1.0
|-
| width="20%" style="color:gray;" | Category
| Analog Input
|}


==ADC QUAD + DAC (PCF8591) component==
An I2C device allowing for up to 4 x 8-bit analogue inputs as well as 1 x 8-bit analogue output. Up to 8 devices can be used together ona signel I2C bus.

==Component Source Code==

Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_External_ADC4_DAC1_PCF8591.fcfx FC_Comp_Source_External_ADC4_DAC1_PCF8591.fcfx]

Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_External_ADC4_DAC1_PCF8591.fcfx FC_Comp_Source_External_ADC4_DAC1_PCF8591.fcfx]

==Detailed description==



























''No detailed description exists yet for this component''

==Examples==




























''<span style="color:red;">No additional examples</span>''












==Macro reference==

===EnableDAC===
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" class="mtx-class-macrohead" | '''EnableDAC'''
|-
| colspan="2" | Enables and Disables the DAC output, Default Disabled.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-bool-icon.png]] - BOOL
| width="90%" | Enabled
|-
| colspan="2" | 0=Disabled, 1=Enabled&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


===Initialise===
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" class="mtx-class-macrohead" | '''Initialise'''
|-
| colspan="2" | Sets up the I2C bus ready for communications with the device.&nbsp;
|-
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


===SampleADC===
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" class="mtx-class-macrohead" | '''SampleADC'''
|-
| colspan="2" | Performs a single ADC sample on the selected ADC channel&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Channel
|-
| colspan="2" | Range: 0-3&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


===SetupADC===
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" class="mtx-class-macrohead" | '''SetupADC'''
|-
| colspan="2" | Configures how the ADC inputs are wired&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Configuration
|-
| colspan="2" | Range: 0-3, Default 0&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


===WriteDAC===
{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-comp-macro.png]]
| width="90%" class="mtx-class-macrohead" | '''WriteDAC'''
|-
| colspan="2" | Writes a value to the digital to analogue output.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Value
|-
| colspan="2" | &nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


==Property reference==

{| class="mtx-class-macrotable wikitable"
|-
| width="10%" align="center" class="mtx-class-macrohead" | [[File:Fc9-prop-icon.png]]
| width="90%" class="mtx-class-macrohead" | '''Properties''' 
|-
|-
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" class="mtx-class-propfolder" | Connections
|-
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Device Address
|-
| colspan="2" | The address pins are used to allow up to 8 individual devices to be connected onto an I2C bus. Sets the state of the pins.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Channel
|-
| colspan="2" | Channel selection&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | SDA
|-
| colspan="2" | Pin used for SDA (data signal)&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
| width="90%" | SCL
|-
| colspan="2" | Pin used for SCL (clock signal)&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Stop Delay
|-
| colspan="2" | On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not  a 10ms delay between an I2C stop event and the next I2C start event.  Most modern microcontrollers will not have a problem so this property can be disabled to speed up the  I2C communications. &nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | Baud Select
|-
| colspan="2" | Baud rate option selector&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-14-icon.png]]
| width="90%" | Baud Rate
|-
| colspan="2" | Baud rate to be used&nbsp;
|-
| width="10%" align="center" class="mtx-class-propfolder" | [[File:Fc9-conn-icon.png]]
| width="90%" class="mtx-class-propfolder" | Simulation
|-
|-
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
| width="90%" | Simulate Comms
|-
| colspan="2" | Allows the communications to be simulated overriding the value on the panel slider controls.&nbsp;
|}