Difference between revisions of "Component: Switch (Slide, PCB) ()"

From Flowcode Help
Jump to navigationJump to search
(Created page with "{| style="width:50%" |- | width="20%" style="color:gray;" | Author | Matrix Ltd |- | width="20%" style="color:gray;" | Version | 1.2 |- | width="20%" style="color:gray...")
 
 
(11 intermediate revisions by 2 users not shown)
Line 15: Line 15:
 
Subminiature slide switch with black tang, PCB mount.
 
Subminiature slide switch with black tang, PCB mount.
  
−
==Component Pack==
+
==Component Source Code==
  
−
FREE
+
Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_sw_slide_sub_pcb.fcfx FC_Comp_Source_sw_slide_sub_pcb.fcfx]
 +
 
 +
Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_sw_slide_sub_pcb.fcfx FC_Comp_Source_sw_slide_sub_pcb.fcfx]
  
 
==Detailed description==
 
==Detailed description==
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
  
 
''No detailed description exists yet for this component''
 
''No detailed description exists yet for this component''
Line 25: Line 41:
 
==Examples==
 
==Examples==
  
−
''<span style="color:red;">No additional examples</span>''
 
  
−
==Downloadable macro reference==
 
  
  
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
Here is an example Flowcode program to read the value of a switch.
 +
{{Fcfile|Switch.fcfx|Switch}}
 +
 +
Here is a schematic of how to connect a basic switch to a microcontroller pin.
 +
 +
[[File:switchschematic.jpg]]
 +
 +
The active high circuit will pass a logical 0 to the input pin when the switch is not pressed and a logical 1 when the switch is pressed.
 +
 +
The active low circuit will pass a logical 1 to the input pin when the switch is not pressed and a logical 0 when the switch is pressed.
 +
 +
 +
There are some differences depending on the type of switch you have, the above states assume a generic push to make type switch, however a push to break type switch would have reversed logic and a toggle switch can work well with either setup.
 +
 +
 +
The resistors are required for correct operation because when a microcontroller's input pin is essentially connected to nothing it will pick up noise in the environment and provide inconsistent readings. This state is referred to as floating i.e. the pin is floating. To test this remove the resistors (if possible) and touch the unconnected pin with your finger the output LED from the example file above will toggle on and off at high speed.
 +
 +
 +
Any values of resistor can be used but it is important to keep the smaller resistor at least 10X smaller then the larger resistor to ensure that the pressed state provides at least 0.91% of the required pressed state voltage. For example a active high switch circuit using 1K and 10K resistors should pull up to about 4.54V when the switch is pressed.
 +
 +
(5V / 11K) * 10K = 4.54545V
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
 +
==Macro reference==
  
 
==Property reference==
 
==Property reference==
Line 39: Line 97:
 
|-
 
|-
 
|-
 
|-
−
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]]
+
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Connections'''
+
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Connections
 
|-
 
|-
 
|-
 
|-
Line 58: Line 116:
 
| colspan="2" | Time in milliseconds allowed for the chip pin to stabilise following a change of state.  NB) Debouncing is only used when reading the switch state using the component macros.        Chip pin is NOT debounced.&nbsp;
 
| colspan="2" | Time in milliseconds allowed for the chip pin to stabilise following a change of state.  NB) Debouncing is only used when reading the switch state using the component macros.        Chip pin is NOT debounced.&nbsp;
 
|-
 
|-
−
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]]
+
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Simulations'''
+
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
 
|-
 
|-
 
|-
 
|-

Latest revision as of 13:14, 7 February 2023

Author Matrix Ltd
Version 1.2
Category


Switch (Slide, PCB) component

Subminiature slide switch with black tang, PCB mount.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_sw_slide_sub_pcb.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_sw_slide_sub_pcb.fcfx

Detailed description

No detailed description exists yet for this component

Examples

Here is an example Flowcode program to read the value of a switch. FC6 Icon.png Switch

Here is a schematic of how to connect a basic switch to a microcontroller pin.

Switchschematic.jpg

The active high circuit will pass a logical 0 to the input pin when the switch is not pressed and a logical 1 when the switch is pressed.

The active low circuit will pass a logical 1 to the input pin when the switch is not pressed and a logical 0 when the switch is pressed.


There are some differences depending on the type of switch you have, the above states assume a generic push to make type switch, however a push to break type switch would have reversed logic and a toggle switch can work well with either setup.


The resistors are required for correct operation because when a microcontroller's input pin is essentially connected to nothing it will pick up noise in the environment and provide inconsistent readings. This state is referred to as floating i.e. the pin is floating. To test this remove the resistors (if possible) and touch the unconnected pin with your finger the output LED from the example file above will toggle on and off at high speed.


Any values of resistor can be used but it is important to keep the smaller resistor at least 10X smaller then the larger resistor to ensure that the pressed state provides at least 0.91% of the required pressed state voltage. For example a active high switch circuit using 1K and 10K resistors should pull up to about 4.54V when the switch is pressed.

(5V / 11K) * 10K = 4.54545V






Macro reference

Property reference

Fc9-prop-icon.png Properties
Fc9-conn-icon.png Connections
Fc9-type-5-icon.png Connection
The chip pin to which this switch is connected. 
Fc9-type-16-icon.png Polarity
Sets whether the pin should go high or low when the switch is activated. 
Fc9-type-14-icon.png Debounce (ms)
Time in milliseconds allowed for the chip pin to stabilise following a change of state. NB) Debouncing is only used when reading the switch state using the component macros. Chip pin is NOT debounced. 
Fc9-conn-icon.png Simulation
Fc9-type-16-icon.png Operation
Operation of the switch. Latching - the switch toggles state with each mouse click, and stays in position when released. Momentary - the switch turns on when the mouse is clicked, and turns off when the mouse is released. 
Retrieved from "https://www.flowcode.co.uk/wiki/index.php?title=Component:_Switch_(Slide,_PCB)_()&oldid=38510"