Using switches, dimmers, and keypads
BubblyNet : Q Series Keypad Switch (K-Q1) : Human-Centric Building Control
Razer Tartarus V2 Chroma Gaming Keypad - Ergonomic Switches - Newegg.com
Amazon.com: Kinesis USB Numeric Keypad, Cherry Low-Force Mechanical Switches (PC),Black : Electronics
4x4 Micro Switch Matrix Keypad - ElectroPeak
![Membrane Button Keypad [Types] – ElectroDragon](https://s5.electrodragon.com/wp-content/uploads/2012/01/483017790_o.jpg "Membrane Button Keypad [Types] – ElectroDragon")
Membrane Button Keypad [Types] – ElectroDragon
1 2 3 4 5 6 7 8 Key Button Membrane Switch Matrix Array Keyboard Keypad Control Panel Pad DIY Kit For Arduino Smart Car - AliExpress
PERIPAD-202 U - Wired Number Pad with Scissor Key Switches Shortcut Ke – Perixx USA
Amazon.com: Generic 6Pcs 4x4 Keypad 16 Key Matrix Array Membrane Switch 8pin Keyboard for Arduino Microcontroller : Electronics
Flat key metal dome tactile membrane switch keypad
Wall Keypads — Insteon
Amazon.com: YXQ 3Pcs 1x4 4 Key Matrix Membrane Switch Keypad Keyboard 65x20x0.8mm DC 12V : Electronics
Eaton E31 eSM Keypad Multiplexed Switch Module - GS Global Resources
MoTeC 8 Position CAN Keypad - John Reed Racing
Koolertron One Handed Macro Mechanical Keyboard with 9 Fully Programmable Keys, Portable Mini One-Handed Mechanical Gaming Keypad OSU! Keyboard
4x4 Key Deluxe Aluminum Keypad Shell Enclosure : ID 5071 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Membrane Switch Keypad Suppliers | Membrane Keypad - HuaiSong
Switch Pros - Touch 8 SP-9100 Keypad Cover - SP-RCR-T8
![Four Key Silver Aluminum Keypad Shell Enclosure [MX Compatible Switches] : ID 5073 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/5073-06.jpg "Four Key Silver Aluminum Keypad Shell Enclosure [MX Compatible Switches] : ID 5073 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits")
Four Key Silver Aluminum Keypad Shell Enclosure [MX Compatible Switches] : ID 5073 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: Number Pad HAVIT Mechanical Numeric Keypad with GATERON Optical Red Switches Hot Swappable Keypad Type-C USB-A Wired PBT Keycaps 21 Keys Numpad for Laptop Computer : Electronics
Addicore 16-key (4x4) keypad Arduino compatible
Membrane Switches and Keypads | Marking Systems
MoTeC 6-Button Rotary CAN Keypad
Redragon K585 DITI One-Handed RGB Mechanical Gaming Keyboard, Blue Switches, Type-C Professional Gaming Keypad with 7 Onboard Macro Keys, Detachable Wrist Rest, 42 Keys - Walmart.com
Wall Keypads — Insteon
