Build a Wireless BLE Keyboard with ESP32 — Type Pre-Programmed Messages at the Push of a Button

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Press a button, watch your text appear on any paired device — that’s the magic of a BLE HID keyboard. With this kit, you’ll assemble an ESP32-based wireless keypad that sends custom messages at the push of a button. Simply pair it with your phone, open any app that accepts text, and press a tactile switch to type the pre‑programmed string instantly. Perfect for young makers learning Bluetooth communication and HID protocols, or anyone who wants a handy automated typing gadget.

What You'll Build

You'll build a fully functional BLE keyboard emulator with six tactile buttons, each capable of sending a different pre-programmed text string to a paired smartphone, tablet, or laptop. Two LEDs provide feedback for Bluetooth connection status and keypress confirmation. The compact breadboard design makes it easy to modify and integrate into a custom enclosure.

What You'll Learn

• How to program an ESP32 as a BLE HID keyboard device
• Understanding of Bluetooth Low Energy (BLE) advertising and pairing
• Reading button states using pull-up resistors and debouncing techniques
• Integrating LEDs for visual status indicators in embedded projects

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is designed for beginners aged 5-15 who are curious about Bluetooth technology and microcontrollers. It’s also ideal for ATL Tinkering Labs, CBSE Class 7-10 computer science extended projects, and B.Tech ECE/EEE students exploring HID protocols for the first time. No prior programming experience is needed — the AI companion explains every code line. Teachers and parents looking for a hands-on STEM activity will appreciate the guided build support.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.