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Portable Wi-Fi Controlled RGBW Lighting

Overview

This portable red, green, blue, and white (RGBW) lighting system, featuring Wi-Fi control and a USB-C power supply, is ultra-flexible and easy to install. Renesas offers a complete design for RGB lighting, which also supports cold and warm white general lighting for versatile applications.

System Benefits​:

  • Complete design for RGBW lighting supporting both color and general lighting needs.
  • Enables easy connection to standard LED bars or strips.
  • Offers remote Wi-Fi control via smartphone for convenient operation.
  • Integrates seamlessly into existing Wi-Fi networks or connects directly to a smartphone in AP mode.
  • Powered by a single, ubiquitous USB-C power supply for simplicity.
  • Supports an extendable setup with additional lighting units for greater coverage.
  • Ultra-portable, compatible with standard USB-C power banks for on-the-go use.

Block Diagram

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4:3 ratioSheet.69Sheet.1Sheet.2Sheet.3Sheet.4EU111EU111EU111USB-C PD ControllerUSB-C PD ControllerUSB-C PD Controller5A Buck Regulator5A Buck Regulator5A Buck RegulatorCurrent Sense Amplifier G=20Current Sense Amplifier G=20Current Sense Amplifier G=20Wi-Fi ModuleWi-Fi ModuleWi-Fi ModuleLight SensorLight SensorLight SensorTemperature RH SensorTemperature RH SensorTemperature RH Sensor1A Buck Regulator1A Buck Regulator1A Buck Regulator 5V5V5V PWMPWMPWMLED BarLED BarLED BarShunt.29Sheet.30Sheet.31Sheet.32Shunt.33Sheet.34Sheet.35Sheet.36InputLEDs RGBSheet.40Sheet.41Sheet.43Sheet.44Sheet.46Sheet.472.4GHz Antenna2.4GHz Antenna2.4GHz AntennaUSB PlugSheet.50Sheet.51Sheet.52Sheet.53Sheet.54Connector 1.162Connector 1.162.60Connector 1.162.61Connector 1.162.62Connector 1.162.63Connector 1.162.64Connector 1.162.65Connector 1.162.66Sheet.67Sheet.68Sheet.70LDOLDOLDOSheet.72Sheet.73Sheet.75Sheet.76Sheet.77Sheet.78Sheet.79Sheet.81Sheet.82Sheet.83Sheet.84Sheet.86Sheet.87Sheet.88Sheet.89Sheet.90Sheet.91Sheet.92Sheet.93Sheet.94Sheet.95Sheet.96Sheet.97Sheet.98Sheet.99Sheet.100Sheet.101Power SwitchPower SwitchPower Switch18-24V18-24V18-24VShunt (+Fuse)Shunt (+Fuse)Shunt (+Fuse)OR1OR1OR11,4Amax1,4Amax1,4Amax5V 3Amax5V 3Amax5V 3Amax5V 50µ Amax5V 50µ Amax5V 50µ Amax3V3 100mAmax3V3 100mAmax3V3 100mAmax 2V8max2V8max2V8max320mAmax320mAmax320mAmax300µAtyp300µAtyp300µAtyp25µAmax25µAmax25µAmaxSheet.11624V In24V In24V InSheet.120Sheet.118Sheet.26Connector 1.162.121Op Amp ComparatorSheet.123Sheet.124DriverSheet.126Sheet.127Sheet.1282V8max2V8max2V8maxConnector 1.162.132Connector 1.162.133Negative Power RailLine.758Line.759Sheet.141Sheet.142Sheet.143RRRGGGBBB 4444Sheet.149Sheet.150Control MCUControl MCUControl MCU VddVddVddSCISCISCII2CI2CI2CADCADCADC ADCADCADC PWMPWMPWM

USB-C PD Controller

USB-C & Power Delivery

5A Buck Regulator

Buck Regulators (Integrated FETs)

Current Sense Amplifier

Current Sense Amplifiers

LDO

Linear Regulators (LDO)

1A Buck Regulator

Buck Regulators (Integrated FETs)

Control MCU

RA Arm Cortex-M MCUs

Light Sensor

Ambient Light Sensors

Wi-Fi Module

RA Arm Cortex-M MCUs
Wi-Fi MCUs

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