4×4 Matrix Keypad Membrane Switch for Arduino, ARM and other MCU
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Working Principle
Description
The 4x4 Matrix Keypad Membrane Switch works by using a matrix arrangement of buttons to allow a microcontroller to scan the output pins and determine which button is being pressed.
Sensor Types
Keypad Module
Switch Keypad
Dos And Donts
Donts
Do Not Exceed The Specified Operating Voltage:
Exceeding the operating voltage may damage the keypad.
Dos
Ensure Proper Operating Voltage (Vdc) Of 35:
Operating the keypad within the specified voltage range ensures optimal performance.
Limits
Contact Resistance
Value:
500Ω,
Description:
The maximum acceptable contact resistance for proper functioning.
Dielectric Strength
Value:
250VRms,
Description:
The maximum voltage the keypad can withstand without breaking down.
Insulation Resistance
Value:
100 MOhm,
Description:
The minimum insulation resistance required to prevent electrical leakage.
How To Connect
Connector Type
Type:
Female 8-pin berg connector,
Description:
Required for interfacing the keypad with microcontroller circuits.
