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Vending machine with secure cloud connection

Reference design for smart vending applications

Smart vending machines have increased in popularity with the trend to be cash-less. The basic functions include an Human-Machine Interface (HMI) with payment and secure monitoring in the cloud. The Renesas Synergy S5D9 MCU has on-chip hardware security, an LCD controller, and qualified SSP for quickly connecting to the cloud. A NarrowBand-Internet of Things (NB-IoT) modem enables direct connection to cloud. The HS300x provides high accuracy and excellent stability for measuring humidity and temperature. With power support from the ISL8117 DC/DC controller, ISL6294 battery charger, and an ISL80103 LDO, the system is complete.

This solution can support differential cable Ethernet and cable-less WLAN connections, such as WiFi, and NB-IoT. The hardware encryption and software protocol, TLS, ensures a secure cloud connection. The capacitive touch and larger color TFT LCD support an optimized HMI experience for the user.

Key features:

  • Secure cloud connection to safely transmit billing information
  • High-performance Arm® Cortex® S5D9 MCU with built-in TFT-LCDC, capacitive touch, and qualified SSP
  • Support for wired Ethernet or various wireless connections such as NB-IoT or WiFi
woman using smartphone to pay at vending machine

vending-machine-body2-table and diagram

Display portlet menu

Recommended products

Products Description Documents
Microcontroller    
S5D9 Arm® Cortex®-M4 core, high performance, rich communication and HMI features Datasheet
Switching Regulator    
ISL8117 Synchronous step-down PWM controllers Datasheet
Battery Charger    
ISL6294 High Input Voltage Charger Datasheet
LDO    
ISL80103 High Performance 3A Linear Regulator Datasheet
Sensor    
HS3001 Relative humidity sensor IC Datasheet

 

Block diagram

Block Diagram: Vending Machine with Secure Cloud Connection
 

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