Digital IO Control

The camera is equipped with a 6-pin GPIO connector. The connector is a JST BM06B-NSHSS-TBT (LF)(SN), the mating connector is a JST NSHR-06V-S.

Color Pin Line Function Description Parameters Min Max Unit
Orange 1 0 GPIO0 Non-isolated Input/Output
TXD (output) for 1.8 V UART		 Input Low Level 0 1.4 V
Input High Level 2.6 24 V
Propagation Delay   1 µs
Output Low Current   25 mA
Output High Level 0 24 V
Black 2 1 GPIO1 Non-isolated Input/Output
RXD (input) for 1.8 V UART		 Input Low Level 0 1.4 V
Input High Level 2.6 24 V
Propagation Delay   1 µs
Output Low Current   25 mA
Output High Level 0 24 V
White 3 2 GPIO2 Non-isolated Input/Output Input Low Level 0 1.4 V
Input High Level 2.6 24 V
Propagation Delay   1 µs
Output Low Current   25 mA
Output High Level 0 24 V
Green 4 3 GPIO3 Non-isolated Input/Output Input Low Level 0 1.4 V
Input High Level 2.6 24 V
Propagation Delay   1 µs
Output Low Current   25 mA
Output High Level 0 24 V
Brown 5 N/A GND Camera Power Ground        
  Red   6 N/A   Vout   Camera Power Output Output Voltage 3.05 3.35 V
Output Current   120 mA

This section describes how to configure the camera's general purpose digital input and outputs (sometimes referred to as GPIO).

Use LineSelector to choose which of the 4 lines to configure. All the features listed beneath it are controllable on a per line basis.

Use Line Mode to control the direction - either Input or Output - of the selected I/O line.

Use LineInverter to control a logic inverter on the selected line.

LineStatus indicates the current status of the selected line. A checked status (enabled) indicates logic high. An unchecked status (disabled) indicates logic low. Since this node must be polled to get its status it should not be used as a real time control for reading internal signals.

LineStatusAll is a hexadecimal representation of all the line status bits (Line 0 status corresponds to bit 0, Line 1 status with bit 1, etc). This allows simultaneous reading of all line statuses at once.

Use LineSource to control what signal is output on the line when the Line Mode is set to output. The choices are:

Other Lines - creates a loop back

Exposure Active - indicates when the image sensor is exposing

Frame Trigger Wait - indicates when the camera is ready to accept a new Frame Start trigger

Summary Table

Name Interface Access Visibility Description
Line Selector IEnumeration Expert Selects the physical line (or pin) of the external device connector to configure
Line Mode [Line Selector] IEnumeration Expert Controls if the physical Line is used to Input or Output a signal.
3.3V Enable IBoolean RW Guru Internally generated 3.3V rail. Enable to supply external circuits with power. This is different than standard logic outputs in that it is comparatively slow to switch but can supply a more significant amount of power. This is only available on some pins.
Line Inverter [Line Selector] IBoolean RW Expert Controls the inversion of the signal of the selected input or output line.
Line Status [Line Selector] IBoolean RO Expert Returns the current status of the selected input or output Line
Line Status All IInteger RO Expert Returns the current status of all the line status bits in a hexadecimal representation (Line 0 status corresponds to bit 0, Line 1 status with bit 1, etc). This allows simultaneous reading of all line statuses at once.
Line Source [Line Selector] IEnumeration Expert Selects which internal acquisition or I/O source signal to output on the selected line. LineMode must be Output.
Line Inference Target [Line Selector] IInteger RW Beginner Inference classification result to trigger GPIO outputs.
Line Inference Threshold [Line Selector] IFloat RW Beginner Inference confidence threshold to trigger GPIO outputs.
User Output Selector IEnumeration Expert Selects which bit of the User Output register is set by UserOutputValue.
User Output Value [User Output Selector] IBoolean RW Expert Value of the selected user output, either logic high (enabled) or logic low (disabled).
User Output Value All IInteger Expert Returns the current status of all the user output status bits in a hexadecimal representation (UserOutput 0 status corresponds to bit 0, UserOutput 1 status with bit 1, etc). This allows simultaneous reading of all user output statuses at once.

Digital IO Control Features


Line Selector

Selects the physical line (or pin) of the external device connector to configure

Property Value
Name LineSelector
Interface IEnumeration
Access
Visibility Expert

Enumeration Values
Line0
Line1
Line2
Line3

Line Mode

Controls if the physical Line is used to Input or Output a signal.

Property Value
Name LineMode [Line Selector]
Interface IEnumeration
Access
Visibility Expert

Enumeration Values
Input
Output

3.3V Enable

Internally generated 3.3V rail. Enable to supply external circuits with power. This is different than standard logic outputs in that it is comparatively slow to switch but can supply a more significant amount of power. This is only available on some pins.

Property Value
Name V3_3Enable
Interface IBoolean
Access RW
Visibility Guru

Line Inverter

Controls the inversion of the signal of the selected input or output line.

Property Value
Name LineInverter [Line Selector]
Interface IBoolean
Access RW
Visibility Expert

Line Status

Returns the current status of the selected input or output Line

Property Value
Name LineStatus [Line Selector]
Interface IBoolean
Access RO
Visibility Expert

Line Status All

Returns the current status of all the line status bits in a hexadecimal representation (Line 0 status corresponds to bit 0, Line 1 status with bit 1, etc). This allows simultaneous reading of all line statuses at once.

Property Value
Name LineStatusAll
Interface IInteger
Access RO
Unit
Visibility Expert

Line Source

Selects which internal acquisition or I/O source signal to output on the selected line. LineMode must be Output.

Property Value
Name LineSource [Line Selector]
Interface IEnumeration
Access
Visibility Expert

Enumeration Values
Off
Line0
Line1
Line2
Line3
UserOutput0
UserOutput1
UserOutput2
UserOutput3
ExposureActive
FrameTriggerWait
InferenceOutput
SerialPort0

Line Inference Target

Inference classification result to trigger GPIO outputs.

Property Value
Name LineInferenceTarget [Line Selector]
Interface IInteger
Access RW
Unit
Visibility Beginner

Line Inference Threshold

Inference confidence threshold to trigger GPIO outputs.

Property Value
Name LineInferenceThreshold [Line Selector]
Interface IFloat
Access RW
Unit
Visibility Beginner

User Output Selector

Selects which bit of the User Output register is set by UserOutputValue.

Property Value
Name UserOutputSelector
Interface IEnumeration
Access
Visibility Expert

Enumeration Values
UserOutput0
UserOutput1
UserOutput2
UserOutput3

User Output Value

Value of the selected user output, either logic high (enabled) or logic low (disabled).

Property Value
Name UserOutputValue [User Output Selector]
Interface IBoolean
Access RW
Visibility Expert

User Output Value All

Returns the current status of all the user output status bits in a hexadecimal representation (UserOutput 0 status corresponds to bit 0, UserOutput 1 status with bit 1, etc). This allows simultaneous reading of all user output statuses at once.

Property Value
Name UserOutputValueAll
Interface IInteger
Access
Unit
Visibility Expert