Our latest water quality monitoring solution is based on ambient light sensing technology, delivering high-precision measurement of water turbidity and the concentration of any colored liquid. It can also be used for light quality measurement to distinguish healthy blue light from harmful blue light. The solution is highly competitive in both high-precision sensing and low-power applications, and is widely applicable to smart home, chemical and medical, and industrial inspection fields.
Solution Overview
This solution uses the LPC824 from NXP as the MCU, paired with the AS7310L — a 5-channel advanced digital ambient light sensor from ams — as the sensing element, and an OLED display serving as the human-machine interface for operation and data readout. The entire system is powered from a 5V USB cable.
Recommended MCU
- LPC82x series: LPC824 — a 32-bit MCU based on the Arm® Cortex®-M0+ core, running at up to 30MHz; its switch matrix allows the function of every I/O pin to be flexibly configured; it strikes a balance between performance and power consumption for effective cost control, and its ultra-thin quad flat no-lead package reduces board space requirements
Core Components
- MCU: LPC824 (NXP)
- Sensor: AS7310L (AMS)
- LDO: onsemi, full part number available on request
Key Advantages
- High accuracy
- High sensitivity
- Low power consumption
- Proven demo platform
- Chinese-language development documentation
- Full-scope technical support
Applications
Smart home, chemical and medical, industrial inspection, consumer electronics
Reference Design WQS100
- Integrated OLED display for a visual operating interface
- High accuracy and high sensitivity
- Wide measurement range with low-power sensing
- Dedicated channels for light quality and light intensity sensing
- Supports a wide variety of measurement types across a broad range of applications
Functional Block Diagram
