Overview

Description

An LED electronic safe box has an electronic lock installed in the door which can be locked and unlocked by entering a specific code into the keypad. The LED displays the status of the electronic safe box and the contents input from the keypad.

This reference design features a small pin-count, low power RL78/G1N microcontroller that can directly drive high-brightness LEDs of 8 segments and 6 digits via large current output terminals. With a single microcontroller, you can realize 7-segment 6-digit LED display control, keypad control, motor control (electronic lock control), and buzzer control.

Features

  • Demo board includes the RL78/G1N
  • 7-segment 6-digit LED display
    • Numbers: content input into the keypad
    • OPEΠEd (Opened): Electronic lock is unlocked
    • CLOSEd (Closed): Electronic lock is locked
    • HOLd15 etc: Password setting time
  • 10-key input
  • Electronic lock/unlock
  • Buzzer
  • Powered by 3 AA batteries (1.5V x 3)
  • Low power consumption operation 20uA(TYP.)@STOP mode

Applications

Applications

  • Building Automation
  • Appliance

Documentation

Type Title Date
Manual - Hardware PDF 1.19 MB
1 item

Design & Development

Software & Tools

Software Downloads

Type Title Date
PCB Design Files Log in to Download ZIP 375 KB
1 item

Sample Code

Videos & Training

LED Electronic Safe Box

Renesas demonstrates the LED Electronic Safe Box quick solution featuring the RL78/G1N microcontroller.