Connected Vending
Coffee Vending HMI
IoT-ready Android HMI for coffee vending machines with UART ingredient control, role-based modes, media playback and cloud logging.
Category
Connected Vending
Focus
Hardware + software engineering
Coffee vending HMI beverage selection interface
Project
Overview
An Android HMI for coffee vending machines combining beverage configuration, technician/operator modes, idle-time media and cloud-synced dispense logs on an industrial IoT board.
Business
Context
Connected vending programmes need dependable on-machine UX, serviceability for technicians and cloud visibility of dispense and component lifecycle data.
Challenge
Unify ingredient control, access roles, offline media and cloud telemetry on industrial Android hardware.
Solution
Custom Android HMI on Quectel SC200R-enabled AOSP board with UART dispenser control, role-based access and local/cloud logging.
Evidence
Interface gallery
Architecture
Hardware
- Android 10 AOSP board, customized for industrial use
- Integrated Quectel SC200R IoT module with Wi-Fi, 4G, and OTA capabilities
- UART serial interface to control ingredient dispensing via internal PCB
- 7" & 10.1" capacitive industrial-grade touch screens
Architecture
Software
- Android HMI for beverage selection, machine settings and media playback
- Role-based login modes: Technician and Operator
- Offline media support via USB for idle-time videos/images
- Local storage + cloud sync of dispense logs, configurations and performance data
Systems
Connectivity & communication
Capabilities
Key features
Outcomes
Business value
- Complete IoT-ready vending platform with real-time cloud integration
- Enhances drink quality & machine efficiency through detailed control
- Media-driven customer engagement during idle periods
- Improves serviceability with technician mode and lifecycle tracking
Stack
Technologies
- Android 10 AOSP
- Quectel SC200R
- UART
- Wi-Fi
- 4G
- OTA
- USB media
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