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Kiosk E-loading Vendo - Wired Setup

Using usb otg for our eloading vendo setup

by Dange Cris Bejoc

Important: This is a DIY (do it yourself) and requires basic skills on electronics. We do not have a dedicated support in case some of your wirings or components are not working. You can join our community or group chat and ask questions or you can email us if you are having difficulty following this guide.

Materialls Needed

  1. Android Kitkat Tablet
    Shopee (7-inches)
    Lazada (7-inches)
    Shopee (10-inches)

  2. USB OTG cable (usually come with the tablet)

  3. Arduino Uno

  4. 12v 5A power adapter

  5. 12v to 3.7A buck converter

  6. Wire/Connector
    2mm Micro JST connector - Lazada

  7. Sim Card (TNT preferred)

Setup Android

(Follow the order, android should be rooted first before installing Fox-Eloader)

  1. Root android using KingRoot (Download Kingroot APK)
    Follow this guide on how to root
    • Turn off KingRoot Charging Lock Screen
    • Set the Root auth prompt to 10 seconds, Allow
    • Use uninstall tool to remove Dialer app (If you want to disable incoming calls popup to your tablet)

  2. Install Fox-Eloader App (Download Fox-Eloader APK)
    • Follow the step by step app setup
    • Set the connection setting to USB
    • Restart android (You may experience lag when the app relaunch after the reboot as it's setting up some settings in the background. Please wait at max. 5 minutes then restart again if it still freeze)

  3. Android Settings
    • Select Fox-Eloader App as Home/Launcher
    • Add PIN for additional security

Flash Arduino

Download Hex File
Follow this Video Demo on how to flash arduino

Android Hardware Modifications

  1. Cut the red wire on the OTG Cable (to prevent heating the tablet)

  2. Remove the battery and auto start android
    • Cut and replace the battery line with the 3.7v from buck converter

    • Connect the Power Pin to Ground (auto-start mods)
    Notice the 1-6 key pins, just short the 4th and 5th. If you can't see the 1-6 pins, just find the PIN labeled Power and tap it to ground.

    Auto start
    Notice the 1-6 key pins, just short the 4th and 5th

NOTE: To extend the life span of your tablet, don't directly unplug the power adapter when turning off the tablet. Use the Turn off button on the kiosk display and quickly unplug right after the screen lights off.


Download diagram

Warning: Don't mistakenly connect the bottom SET PIN, it will destroy your arduino instantly


Kiosk Mode Eloading Vendo - Installation Guide

by Dange Cris Bejoc

LCD & Keypad Eloading Vendo - Installation Guide

by Dange Cris Bejoc