I2C 4x4 Membrane Keypad + Adapter, 5-Pack
I2C 4x4 Membrane Keypad + Adapter, 5-Pack is backordered and will ship as soon as it is back in stock.
Warranty and returns
Warranty and returns
12-month warranty on everything we sell. If a part is faulty, we'll replace or refund it and cover the return postage. Damage from soldering, wiring mistakes or modification isn't covered.
Changed your mind? Return it unused within 30 days for a full refund, with no restocking fee.
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. Full returns policy
Shipping
Shipping
Free standard shipping within Australia on orders over A$55. Under A$55, standard shipping is A$6.95.
New Zealand A$8.99. Rest of the world A$14.95, flat rate.
Orders ship from Macquarie Park, NSW within one business day of payment when the item is in stock. Shipping policy
I2C 4x4 Membrane Keypad + Adapter, 5-Pack is backordered and will ship as soon as it is back in stock.
Stuck? Ask the people who made it
Email office@lonelybinary.com with your setup and what it is doing. Our product team answers within 24 hours.
Description
Description
Five 16-key soft membrane keypads, each with an I2C adapter that cuts the wiring from eight pins to two. For PIN entry, menus and control panels.
Highlights
- Two signal wires. The PCF8574-based adapter reads the 4x4 matrix over I2C, on SDA and SCL.
- Stick-on mounting. Adhesive backing fixes each keypad to a panel, enclosure or desk.
- 3.3 V or 5 V. Runs at your board's logic voltage.
- Five complete sets. A keypad and an adapter for each project, plus a storage box.
In the box
- 5 × 4x4 soft membrane keypad, adhesive back
- 5 × I2C adapter with 8 right-angle pins
- 1 × storage box
Specifications
- Keys: 16 (4x4 matrix)
- Interface: I2C via PCF8574 adapter
- I2C address: 0x20 as shipped
- Supply: 3.3 or 5 V
Works with
Arduino, ESP32 and other microcontrollers with an I2C keypad library such as Keypad_I2C.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
What's in the box
parts, each with its own handbook
Tap any part for its wiring, example code for Arduino and MicroPython, and a 3D model you can turn over.
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