MCU keyboard / button matrix 3 * 4 12 keys 16 industrial row scan Электроника - купить

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Купить MCU keyboard / button matrix 3 * 4 12 keys 16 industrial row scan | Электроника

3X4 12-key feature: 1, 4x3 12 button matrix keyboard module 2. The keyboard matrix allows you to quickly add controls to your electronic project. 3. It provides 0 to 9 numbers, as well as standard stars (*) and hash symbols. 4. Easy communication with any microcontroller. 5, product size: 70mm * 52mm * 9mm 4X4 16-key feature: 1, 4 * 4A type, 2, the largest size 65mm * 64mm * 9mm 3. If you use the multimeter test (resistance file) button 1 2 3 A million will be used to tweet. 4, 2nd row 3 4 5 B 5, the third row 6 7 8 C 6, the fourth row * 0 # D only shows the resistance reading multimeter will not beep, regardless of the display readings or tweets indicate that the line is open, just because the resistance of the second row of the third row of the fourth row of buttons is too high.