Overview

The digital illuminometer is composed of an integrated light sensor (ISL29035), OLED display and a cap-touch keypad. It can be used to monitor the lux value of a variety of lighting conditions. The OLED display method can be controlled with the touch key input, while the LED brightness also can be changed as a function of ambient light changes. 

Optimized for handheld applications, this design incorporates the RA2A1 microcontroller, which with its analog support, can simply implement USB charging of a Li-ion battery. Voltage and current can be monitored and controlled with real-time feedback, while charging mode can be adjusted as required.

System Benefits:

  • Four lux sensitivity ranges provided automatically, LED brightness also can be changed 
  • MCU-based lithium battery management, which includes pre-charging, CC, CV charging mode, overcurrent, overvoltage, and overheating protection

Related Products

Category Description Featured Document Ordering
       
Microcontroller      
RA2A1 48MHz Arm® Cortex®-M23 core with integration of a 24-bit sigma-delta ADC Datasheet Select Specific Device
       
Sensor      
ISL29035 Light-to-Digital Output Sensor with Gain Selection, Interrupt Function and I2C Interface Datasheet Buy/Sample
       
LDO      
ISL80505 High Performance 500mA LDO Datasheet Buy/Sample
ISL80510 High Performance 1A LDO Datasheet Buy/Sample
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Digital Illuminometer

The solution incorporates an RA2A1 microcontroller, integrated light sensor (ISL29035), OLED display and a cap-touch keypad. It can be used to monitor the lux value of a variety of lighting conditions.

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