The R0K578L1CD000BR is an RL78/L1C HMI (human machine interface) evaluation kit that includes a segmented LCD display circuit, an audio playback circuit, and a capacitive touch circuit. With this kit, users can develop and evaluate USB products and HMI for home appliances, healthcare equipment, and other products with communication functions with ease.

* A demonstration for home appliance communications was performed using this solution kit mounted with a wireless module and supporting the ECHONET Lite protocol at Embedded Technology 2013.


  • Built-in segmented LCD display, touch input, and audio playback functionality Makes it easy to develop and evaluate human machine interface for home appliances, healthcare equipment, and other products
    • Built-in touch detection makes it easy to improve the design of a product
    • Audio middleware for audio playback and speech rate conversion
    • Internal voltage boosting enables LCD display with low power consumption
    • Built-in sensor control system for M2M
  • The built-in USB functions and serial flash memory of the RL78/L1C enable measured data to be stored and transferred via USB to a smartphone or computer. Example: Healthcare equipment
  • ECHONET Lite communications are possible. The kit has also been shown to work with external modules for 920 MHz (sub-GHz) band communication which has been certified under the Japanese Radio Law, ZigBee RF4CE, and PLC (DSCK).

Key Features

Item Specifications Remarks
Product part number R0K578L1CD000BR -
Power supply [1] Two AA batteries
Select [1] or [2] using jumper
Input voltage 2.6 to 5.5 V -
Consumption current Normal mode: 10 mA; Power-saving mode: 0.1 mA -
Dimensions 120×70×22 mm (battery box: 70×48×20 mm) -
Environmental conditions Operation: 10 to 35 ℃; Storage: -10 to 50 ℃ No condensation
Microcontroller RL78/L1C (ROM: 256 KB, RAM: 16 KB, 100-pin) R5F110PJAFB
External flash memory M25PX16 (2 MB) SPI communication
Standard interface USB micro-B -
Debugging interface E1 connector -
Functions Illumination measurement (digital illumination sensor: 1) -
Temperature measurement (analog temperature sensor: 1) Offset setting function
Display (LCD: 1; LED: 2) -
Key input (touch key: 4; push button: 1; reset button: 1) -
Audio output (onboard speaker or earphone jack) Audio middleware for volume adjustment
USB-UART conversion

Block Diagram

Contact (Purchase, Question)

Please contact to your regional sales office.
If you have technical questions, please also use the forum "RenesasRulz".

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