All SL-T21&22/T/Q and SL31&32/F/Q intelligent sewage lift units from Hunan Leading Technology come standard with STMicroelectronics STM32 main control chips and the ST Purple Ming Platform V13.0. Drawing on ST’s decades of experience in industrial chip R&D, the products feature five core advantages that address the industry pain points of conventional controllers — such as stuttering, misjudgment, frequent failures, and poor expandability.

1. Full‑Spectrum Computing Power for Zero‑Latency Real‑Time Response 

Chip main frequencies range from 24MHz to 800MHz, flexibly supporting everything from basic start‑stop control to complex IoT data computing. With dedicated high‑end hardware acceleration units, the chips deliver outstanding floating‑point calculation and multi‑signal synchronous processing performance. When handling liquid level fluctuations, pump start‑stop operations, and synchronous collection of multi‑channel sensor signals, the system executes instant computation without stuttering. Its real‑time performance far surpasses ordinary control chips, eliminating common malfunctions including false liquid level triggering, dry‑run misjudgment, and delayed alarms.

2. Industrial‑Grade Rigor for Long Service Life in Humid Conditions

Built with a native industrial‑grade chip architecture featuring wide temperature tolerance and strong anti‑interference design, it perfectly adapts to harsh drainage environments with high humidity and heavy electromagnetic interference — such as basements, underground parking lots, and equipment rooms. Backed by ST’s 10‑year product lifecycle commitment and strict quality control system, it greatly extends the overall service life of controllers and reduces after‑sales maintenance frequency, enabling worry‑free long‑term operation for commercial projects.

3.Highly Integrated Peripherals Simplify Hardware and Reduce Failure Points 

The chip integrates a rich set of built‑in peripherals, including multi‑channel ADC analog acquisition, PWM speed regulation, CAN/serial communication, storage, and security encryption. No massive external auxiliary components are required. This simplifies the internal hardware circuits of WT series controllers, lowers wear on wiring and components, drastically reduces overall equipment failure rates, and results in a more compact and stable device structure.

4.Comprehensive Security Protection System to Fully Safeguard Pump Units

Adopting ST’s native hardware security architecture combined with multi‑layer protection logic built by software algorithms, the system delivers real‑time monitoring of overload, phase loss,overheating, dry running, overflow, and electric leakage, with millisecond‑level emergency shutdown upon abnormality detection. Operation records are stored with data encryption to prevent loss of fault logs, facilitating convenient maintenance and inspection, and eliminating risks of pump burnout and sewage overflow at the chip bottom layer.

5.Native IoT Expansion Capabilities for Smart Drainage Upgrade

STM32 features a comprehensive wireless communication ecosystem, enabling SL-T21&22/T/Q and SL31&32/F/Q to easily integrate Wi‑Fi and 4G IoT modules. The system supports mobile remote monitoring, cloud data storage, remote parameter configuration, and fault message alerts — catering to diverse connectivity needs, including smart home usage for residential customers, centralized cloud management for commercial properties, and remote operation and maintenance for municipal pumping stations.
 

All SL-T21&22/T/Q and SL31&32/F/Q intelligent sewage lift units from Hunan Leading Technology come standard with STMicroelectronics STM32 main control chips and the ST Purple Ming Platform V13.0. Drawing on ST’s decades of experience in industrial chip R&D, the products feature five core advantages that address the industry pain points of conventional controllers — such as stuttering, misjudgment, frequent failures, and poor expandability.

1. Full‑Spectrum Computing Power for Zero‑Latency Real‑Time Response 

Chip main frequencies range from 24MHz to 800MHz, flexibly supporting everything from basic start‑stop control to complex IoT data computing. With dedicated high‑end hardware acceleration units, the chips deliver outstanding floating‑point calculation and multi‑signal synchronous processing performance. When handling liquid level fluctuations, pump start‑stop operations, and synchronous collection of multi‑channel sensor signals, the system executes instant computation without stuttering. Its real‑time performance far surpasses ordinary control chips, eliminating common malfunctions including false liquid level triggering, dry‑run misjudgment, and delayed alarms.

2. Industrial‑Grade Rigor for Long Service Life in Humid Conditions

Built with a native industrial‑grade chip architecture featuring wide temperature tolerance and strong anti‑interference design, it perfectly adapts to harsh drainage environments with high humidity and heavy electromagnetic interference — such as basements, underground parking lots, and equipment rooms. Backed by ST’s 10‑year product lifecycle commitment and strict quality control system, it greatly extends the overall service life of controllers and reduces after‑sales maintenance frequency, enabling worry‑free long‑term operation for commercial projects.

3.Highly Integrated Peripherals Simplify Hardware and Reduce Failure Points 

The chip integrates a rich set of built‑in peripherals, including multi‑channel ADC analog acquisition, PWM speed regulation, CAN/serial communication, storage, and security encryption. No massive external auxiliary components are required. This simplifies the internal hardware circuits of WT series controllers, lowers wear on wiring and components, drastically reduces overall equipment failure rates, and results in a more compact and stable device structure.

4.Comprehensive Security Protection System to Fully Safeguard Pump Units

Adopting ST’s native hardware security architecture combined with multi‑layer protection logic built by software algorithms, the system delivers real‑time monitoring of overload, phase loss,overheating, dry running, overflow, and electric leakage, with millisecond‑level emergency shutdown upon abnormality detection. Operation records are stored with data encryption to prevent loss of fault logs, facilitating convenient maintenance and inspection, and eliminating risks of pump burnout and sewage overflow at the chip bottom layer.

5.Native IoT Expansion Capabilities for Smart Drainage Upgrade

STM32 features a comprehensive wireless communication ecosystem, enabling SL-T21&22/T/Q and SL31&32/F/Q to easily integrate Wi‑Fi and 4G IoT modules. The system supports mobile remote monitoring, cloud data storage, remote parameter configuration, and fault message alerts — catering to diverse connectivity needs, including smart home usage for residential customers, centralized cloud management for commercial properties, and remote operation and maintenance for municipal pumping stations.