Keyboards By TECHTONICS

• 4x4 Matrix Keypad - Membrane type keypad has 16 buttons, arranged in a 4x4 grid
• It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything
• The keys are connected into a matrix, so you only need 8 micro controller pins (4-columns and 4-rows) to scan through the pad.

• This 4?5 Matrix Array 20 Key Membrane Switch Keypad Keyboard is a high-quality soft-touch feeling button keypad
• This DC 12V 4?5 Key Matrix Membrane Switch Keypad is a high-quality product at a very low cost for your application needs.
• The Keypad 4?5 features a total of 20 buttons in Matrix form.
• This is a membrane keypad with no moving parts.
• Used widely in industrial and home electronic equipment, instrument, etc.
• A female 9-pin berg connector is required for interfacing it with your microcontroller circuits.
• Ultra-thin design & adhesive backing provides easy integration to any project, Excellent price-performance ratio
• Easy communication with any microcontroller, 5 pins 2.54mm pitch connector, 4?5 type 20 keys.
• The sticker can peel off for adhesive mounting, This allows a microcontroller to 'tcan the 9 output pins to see which of the 20 buttons is being pressed.
• Operating Current (A) 100mA, Contact Resistance 100m (Max.)

• It is 12 Button Keypad switch, ideal for code or data entry.
• Each key is rated for up to 1,000,000 life-stroke and also features a durable high-quality material contact surface for best environmental resistances.

• This DC 12V 4?1 Key Matrix Membrane Switch Keypad is a high-quality product at very low cost for your application needs.
• This 4-button keypad provides a useful human interface component for microcontroller projects
• The Keypad 1?4 features a total of 4 buttons in Matrix form. This is a membrane keypad with no moving parts. A female 5-pin berg connector is required for interfacing it with your microcontroller circuits.

• This is 4×4 Matrix 16 Keyboard Keypad Telephone Style.
• It is 16 Button Keypad switch, ideal for code or data entry.
• Each key is rated for up to 1,000,000 life-stroke and also features a durable high-quality material contact surface for best environmental resistances.
• Easy communication with any microcontroller.

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