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Digital Illuminometer
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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.