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Using I2C with a 4×4 Matrix Keypad - Maker and IOT Ideas
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Using i2c with a 4×4 matrix keypad
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4x4 Matrix Keypad interface with 89C51 | circuits4you.com
![Tutorial 26 - 4x4 matrix keypad](https://i2.wp.com/raw.githubusercontent.com/BasOnTech/Arduino-Beginners-EN/master/E26-4x4-matrix-keypad/E26-4x4-matrix-keypad.png)
Tutorial 26 - 4x4 matrix keypad
![Arduino: Library for multiple keypads – Hobby Components Blog](https://i2.wp.com/blog.hobbycomponents.com/wp-content/uploads/2015/01/Matrix_Keypad.png)
Arduino: Library for multiple keypads – Hobby Components Blog
![Read a 4x4 Matrix Keypad | LEARN.PARALLAX.COM](https://i2.wp.com/learn.parallax.com/sites/default/files/content/propeller-c-tutorials/simple-devices/MatrixKeypad/4x4-Keypad-FLiP-220s.png)
Read a 4x4 Matrix Keypad | LEARN.PARALLAX.COM
![4x3 matrix keypad interfacing with micrcontroller and Mikro C - MINA](https://1.bp.blogspot.com/-gsMSDzVUq3Q/XT8s_2HWOZI/AAAAAAAAAYI/ZpFZEeiDLMACLXqF3aECFprCbncgfj2YQCLcBGAs/s640/structure%2Bof%2Bkeypad.jpg)
4x3 matrix keypad interfacing with micrcontroller and Mikro C - MINA
![arduino mega - 4x4 matrix keypad - Multiple inputs cause extra readings](https://i2.wp.com/i.stack.imgur.com/7GbUd.png)
arduino mega - 4x4 matrix keypad - Multiple inputs cause extra readings
![Read a 4x4 Matrix Keypad | LEARN.PARALLAX.COM](https://i2.wp.com/learn.parallax.com/sites/default/files/content/propeller-c-tutorials/simple-devices/MatrixKeypad/4x4-Keypad-Schematic.png)
Read a 4x4 Matrix Keypad | LEARN.PARALLAX.COM
![How to Interface 4x4 Matrix Keypad with LPC2148- (Part 6/9)](https://i2.wp.com/www.engineersgarage.com/wp-content/uploads/2019/10/Circuit-Diagram-of-General-Keypad-Matrix.png)
How to Interface 4x4 Matrix Keypad with LPC2148- (Part 6/9)
![Using I2C with a 4×4 Matrix Keypad - Maker and IOT Ideas](https://i2.wp.com/www.makeriot2020.com/wp-content/uploads/2020/10/Schematic_4x4-Matrix-Keypad_2020-10-05_19-36-15-1024x927.png)
Using I2C with a 4×4 Matrix Keypad - Maker and IOT Ideas