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How to use a Bluetooth barcode scanner with the mobile app

How to use a Bluetooth barcode scanner with the mobile app

Owned by Mike, created
Last updated: Mar 06, 2025

This article describes how to setup a generic Bluetooth barcode scanner such as the NETUM C750 for scanning tags into the Croptracker mobile app. A barcode scanner is a great alternative to using the device’s camera when going fast is a top priority.

Most Bluetooth barcode scanners will work with the Croptracker mobile app out of the box without any additional configuration. This is thanks to a feature sometimes called wedge mode or Bluetooth HID - where the scanner acts as a Bluetooth keyboard and “types” the barcode into the app. Follow the steps below to confirm this feature works with your Bluetooth scanner.

 Instructions

  1. Pair the Bluetooth scanner with your iOS or Android device.

    1. This will vary depending on the exact scanner, but generally this will involve navigating to the Bluetooth settings and tapping the name of the scanner when it appears. Refer to your scanner's manual for specific instructions.

  2. Try a test scan. Open an app like the “Notes” app, point the scanner at a barcode, and pull the trigger. You should see the barcode typed out, followed by an “enter” that puts the caret on a new line.

  3. Try a scan in the Croptracker app. Features that support barcode scanners include:

    1. Field Pack: Scan master tags

    2. Harvest: Scan pre-printed harvest tags

    3. Packing: Scan harvest tags

    4. Receiving: Scan harvest or pallet tags

    5. Shipping: Scan harvest or pallet tags

    6. Storage: Scan harvest or pallet tags

Troubleshooting

Problem

What to try

Problem

What to try

Bluetooth scanner won’t pair with device

  • Verify the scanner is powered on

  • Verify the scanner is not already paired to another phone or tablet

  • Confirm with the pairing steps with the scanner’s manual

Barcode won’t scan into Notes app

  • Verify the scanner is not already paired to another phone or tablet

  • Verify the type of barcode is supported by the scanner

  • Refer to the scanner’s manual for configuring the scanner with iOS or Android devices, sometimes called “wedge” mode or “HID Bluetooth” mode

Barcode will scan into Notes app but not Croptracker app

  • Verify the phone or tablet is turned on with the Croptracker app open to the correct screen.

  • Verify the barcode that’s scanned into the notes app is followed by an “enter” that puts the caret on a new line. This is sometimes referred to as a suffix or terminator character that’s automatically appended to the barcode by the scanner. This character must be set to “enter” (A.K.A carriage return (CR), line feed (LF), or newline). Refer to the scanner’s manual for how to set the suffix/terminator character.

Can’t use my phone or tablet’s on-screen keyboard while the scanner is connected

  • Double-squeeze the trigger on the scanner. Most scanners have configured this action to toggle the on-screen keyboard on and off.

  • Refer to the scanner’s manual for how to enable this behavior.

 Related articles

https://www.croptracker.com