---
slug: "adhesive-usbc-barcode-reader"
title: "Adhesive Compact Barcode / 2D Code Reader (USB-C)"
description: "A compact barcode reader for smartphones using the GROW GM805 module"
url: "https://www.ytyng.com/en/bio/adhesive-usbc-barcode-reader"
achieved_at: "2026-01-15"
updated: "2026-02-15T05:19:40.012Z"
category: "電子工作"
image_url: "https://media.ytyng.com/20260215/84c64b92969441819f5d7322e94b6467.webp"
lang: "en"
---

# Adhesive Compact Barcode / 2D Code Reader (USB-C)

# Adhesive Compact Barcode / 2D Code Reader (USB-C)

A compact barcode reader for smartphones using the GROW GM805 module.

Enables standalone POS and inventory management applications on a smartphone.

Most commercial barcode readers use Bluetooth, but no USB-C connected ones were available, so I built my own.
With USB-C direct connection instead of Bluetooth, no setup or charging is needed, providing low-latency and stable reading.

## Features

- **USB-C direct connection** — No Bluetooth pairing or charging required
- **Adhesive mount** — Sticks to the back of a smartphone case
- **1D/2D code support** — Reads barcodes, QR codes, and more
- **3D printed case** — Ultra-compact original enclosure

![画像](https://media.ytyng.com/20260215/cc990edf61cc473f828222903a5c09c9.webp)