Pocket ESP32-C3 Wi-Fi Messenger

I have an idea for a two-way text-messaging gadget that is no larger than a common correction-tape dispenser. The brain of the unit must be an ESP32-C3 and the only wireless link I need is Wi-Fi—no Bluetooth fallback. Power will come from a small, replaceable battery rather than USB or a rechargeable cell, so every milliamp you can save counts.

Here is what I expect when we are done:

• A compact PCB layout that fits the rough footprint of correction tape (around 95 × 25 × 15 mm; I can adjust a little if it helps with antenna clearance).
• Complete schematic, Gerbers and a concise BOM with readily available parts.
• Firmware built with ESP-IDF or Arduino-ESP32 that can send and receive short text payloads over Wi-Fi, display them (even a simple OLED/LED matrix is fine), and confirm delivery.
• Low-power strategy outlined and demonstrated so the device can idle for weeks on a fresh battery yet wake instantly for message activity.
• A 3-D printable enclosure file that shows how everything is secured inside the correction-tape-sized shell.

Deliver the compiled binary, source code, and a quick start read-me so I can flash, assemble, and begin field testing without hunting for settings.

I will judge the work on physical fit, stable Wi-Fi performance, clean code that I can extend, and practical battery life. If this sounds like your kind of build, let’s talk details and milestones right away.