USB macro pad kit with soldered USB-C Pro Micro, 16-key membrane keypad, rotary encoder, breadboard and jumper wires.

ATmega32U4 Pro Micro USB Macro Pad & Encoder Kit

Name: ATmega32U4 Pro Micro USB Macro Pad & Encoder Kit
Brand: ShillehTek
SKU: ST-KIT-10
Price: 25.99 USD
Availability: InStock

SKU ST-KIT-10

$25.99 USD $31.71 Shipping & tax calculated at checkout

In stock· Order by 3pm ET and it ships today

Pro Micro ATmega32U4 USB-C kit with a 16-key membrane keypad, KY-040 encoder, breadboard and jumpers for custom USB input projects. Wiring, suitable HID firmware, a computer and a USB-C data cable are required.

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Overview

Product Overview

Prototype a custom USB macro pad and encoder controller with a Pro Micro ATmega32U4, 16-key 4 × 4 membrane matrix keypad and KY-040 rotary encoder. The pre-soldered 5V/16MHz USB-C board provides native USB capability, while your HID firmware determines how keys, rotation and button presses become shortcuts, navigation or media commands. The pre-soldered encoder, 400-point breadboard and 10cm jumpers support initial wiring before you design a finished enclosure. This is a parts kit requiring wiring and firmware development; a USB-C data cable, computer and enclosure are not included.

Bundle value: Purchased separately, the included component variants total $31.71. This kit is $25.99, saving $5.72.

1 × pre-soldered Pro Micro ATmega32U4 board, 5V/16MHz, USB-C
1 × 4 × 4 membrane matrix keypad with 16 keys
1 × pre-soldered KY-040 rotary encoder module
1 × 400-point solderless breadboard
1 × 120-piece, 10cm jumper wire set: male–male, male–female and female–female

This is a parts kit that requires wiring and firmware development before it works as a USB input device. A USB-C data cable, computer, enclosure and kit firmware are not included. Choose and configure suitable USB HID firmware for the behavior you want.

Read the kit setup guide for assembly planning, required extras and component references.

Questions & answers

Frequently asked questions

Is this a finished USB macro pad?

No. It is a development kit of separate components. You must wire the keypad and encoder and configure suitable USB HID firmware before it works as a custom input device.

Why does this kit use the ATmega32U4 Pro Micro?

The ATmega32U4 provides native USB support for custom HID projects such as shortcut keypads and macro pads. The supplied Pro Micro is the pre-soldered 5V, 16MHz USB-C version.

Which controls are included?

You receive a 4 × 4 membrane matrix keypad with 16 keys and a pre-soldered KY-040 rotary encoder with rotation and push-button input. The behavior of each input is determined by your firmware.

Can I use it for media controls or application shortcuts?

Yes, with firmware configured for the USB HID actions you want. The kit is intended for custom shortcuts, media controls, menu navigation and similar input projects; it does not arrive with a finished key mapping.

What else is required to build the controller?

You need a computer, USB-C data cable and suitable project firmware, plus any enclosure or final mounting hardware. A 400-point breadboard and 120 10cm jumper wires are included for prototyping.

Have other questions?

Chat with our US-based team — we usually reply fast.

What's included

Features & Specs

Native USB HIDThe Pro Micro ATmega32U4 provides native USB HID and serial functionality for custom shortcut control.

5V 16MHz BoardThe included development board runs at 5V/16MHz and uses a USB-C connector.

Keypad and EncoderA 16-key 4 × 4 membrane matrix keypad and KY-040 rotary encoder support key input plus encoder rotation and press actions.

Core Kit PartsIncludes 1 × pre-soldered Pro Micro ATmega32U4 board, 1 × 4 × 4 membrane matrix keypad, and 1 × pre-soldered KY-040 rotary encoder module.

Breadboard and WiresIncludes 1 × 400-point solderless breadboard and 1 × 120-piece, 10cm jumper wire set with male–male, male–female and female–female leads.

Your HID FirmwareChoose and configure suitable USB HID firmware to turn the wired keypad and encoder inputs into the behavior you want.

Shortcut Use CasesSuitable for application shortcuts, media control, menu navigation, CAD tools, streaming controls, and other custom PC inputs.

Setup RequiredThis parts kit requires wiring and firmware development before it works as a USB input device, and a USB-C data cable, computer, enclosure and kit firmware are not included.

Reference