M5Cardputer USB Macro Keypad

Transform your M5Cardputer into a plug-and-play USB macro keypad with scrollable macro list and visual feedback.

Screenshots

Features

• 16 Custom Macros (a-h, 1-5) with rich text display

• Scrollable List (; = Up, . = Down)

• Live Feedback shows last sent macro

• Special Actions (Ctrl+C, New Google Tab)

• Backspace/Enter support

• Full Canvas UI with scroll bar

Hardware Setup

• Connect M5Cardputer to laptop via USB-C
• No pairing needed - instant recognition as HID keyboard
• Press any key to test

Software Requirements

Arduino IDE 2.x ESP32 Board Package: 3.x.x Libraries (Library Manager):

• M5Cardputer (latest)
• No BLE libraries needed Board: M5Stack → M5Cardputer

Key Bindings

• Scroll: ; (UP) . (DOWN)
• Macros: a b c d e f g h 1 2 3 4 5
• Special: Enter

Macro List

Key	Action
a	Hello World!
b	Git commit -m
c	TODO:
d	Date:
e	COPY (Ctrl+C)
f	NEW TAB (Google)
g	Good morning team
h	Help Docs
1	Priority HIGH
2	Priority LOW
3	Review Needed
4	Internal Only
5	Draft Version

Installation

text

1. Open code in Arduino IDE
2. Select M5Cardputer board
3. Upload (device in download mode: Power OFF + hold G0 + USB)
4. Plug into laptop - ready!

Customization

cpp

// Add your macros
const char* macros[] = {
  "a:Hello World!", 
  "b:Git commit -m ", 
  "c:TODO: ", 
  "d:Date: "
};

Troubleshooting

❌ No response: Check USB cable (data, not charge-only)

❌ Won't compile: Downgrade to ESP32 core 2.0.11 + restart IDE

❌ Scroll not working: Try ' or / keys instead of ;/.

❓ Customize: Edit macros[] array + reflash

Ready in 30 seconds - perfect for developers, support teams, and power users!