Membrane 1x4 Keypad + Extras
Punch in your secret key into this numeric membrane keypad. This keypad has 4 buttons, and since every key has its own wire line, no matrix code is required - just treat these like every day switches.
Pinout
- COM
Common switch return for the 1x4 membrane keypad; Adafruit states the keypad has four buttons, each key has its own wire line, and includes a 5-pin header strip.
Type · signal - KEY1
Individual normally-open switch line for one keypad button; treat as an everyday switch/digital input per Adafruit product description.
Type · signal - KEY2
Individual normally-open switch line for one keypad button; treat as an everyday switch/digital input per Adafruit product description.
Type · signal - KEY3
Individual normally-open switch line for one keypad button; treat as an everyday switch/digital input per Adafruit product description.
Type · signal - KEY4
Individual normally-open switch line for one keypad button; treat as an everyday switch/digital input per Adafruit product description.
Type · signal
Start wiring
Development Modules · Modules
Module pins: COM, KEY1, KEY2, KEY3, KEY4. Schematik maps them to your board in the app.
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