PCBA  Images

About TECircuit

Found: TECircuit has been operating since 2004.

Location: An electronics manufacturing service(EMS) provider located in Shenzhen China.

Item: Customizable EMS PCB, offers a full range of one-stop shop services.

Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.

Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.

Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly production capacity : 100,000 m2

PCBA  Applications

• Large-Scale Smart Metering: The PCBA enables the wireless, long-range reading of utility meters (water, gas, electricity) in hard-to-reach or widely dispersed locations, automating data collection and eliminating the need for manual, on-site readings.

• Smart Agriculture and Environmental Monitoring: Deployed across vast fields, the device monitors critical parameters like soil moisture, temperature, and nutrient levels, transmitting data to a central system to optimize irrigation schedules and crop management, conserving resources.

• Asset Tracking and Logistics: Used to track the location and condition of high-value assets, shipping containers, or vehicles over regional or national distances, providing supply chain visibility without the high cost and power consumption of cellular GPS trackers.

• Smart City Infrastructure Management: Forms the backbone of urban IoT networks, connecting and managing distributed assets such as smart streetlights (for adaptive lighting), waste bin sensors (for optimized collection routes), and air quality monitoring stations.

• Industrial Safety and Condition Monitoring: Enables predictive maintenance by monitoring the health and operational parameters of remote industrial equipment (e.g., vibration, temperature, tank levels) and transmitting alerts for anomalies, preventing failures.

• Building Automation and Facility Management: Integrates sensors for occupancy, temperature, humidity, and door/window status in large buildings or campuses, enabling efficient control of HVAC and lighting systems while ensuring security.

PCBA Features 

1. LoRa Radio Transceiver Module: The heart of the PCBA is a dedicated LoRa (Long Range) RF transceiver chip and matching network, which utilizes Chirp Spread Spectrum (CSS) modulation to achieve exceptional receiver sensitivity and long-range communication (several km in open areas) on unlicensed sub-GHz bands.

2. Ultra-Low-Power Microcontroller (MCU): Centers on an ultra-low-power MCU that manages sensor data acquisition, processes information, and controls the LoRa radio's duty cycle. It spends most of its time in deep sleep mode, enabling operational lifetimes of several years on battery power alone.

3. Advanced Power Management IC (PMIC): Employs a highly efficient PMIC specifically designed for low-duty-cycle applications. It provides precise, low-quiescent-current voltage regulation to all subsystems and manages battery charging (if applicable), maximizing energy harvesting potential.

4. Multi-Sensor Interface Hub: The board is designed with a range of low-power digital and analog interfaces (I2C, SPI, ADC, GPIO) to connect seamlessly with various external sensors (temperature, humidity, pressure, accelerometers) required for the specific monitoring application.

5. Secure Element for End-to-End Encryption: Often incorporates a hardware-based secure element or cryptographic co-processor to handle the Advanced Encryption Standard (AES) for securing over-the-air messages, ensuring robust LoRaWAN network-layer security and device authentication.

6. Compact and Ruggedized Design: The PCBA is typically designed to be compact and is often coated with a conformal coating to protect against moisture, dust, and corrosion, ensuring reliable operation in harsh outdoor or industrial environments.

7. Energy Harvesting Compatibility (Optional): High-end designs include circuitry compatible with energy harvesting sources, such as small solar panels or thermal generators, allowing the device to operate perpetually or extend its battery life significantly.

FAQ

​PCB & PCBA  Description​

PCB Assembly OEM Service

Electronic Components Material Purchasing

Bare PCB Fabrication

Cable, Wire-harness Assembly, Sheet Metal, Electrical Cabinet Assembly Service

PCB Assembly Service: SMT, BGA, DIP

PCBA test: AOI, In-Circuit Test (ICT), Functioal Test (FCT)

Conformal Coating Service

Prototyping and Mass Production

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PCBA ODM service

PCB Layout, PCBA Design According To Your Idea

PCBA Copy/Clone

Digital Circuit Design / Analog Circuit Design/ lRF Design /Embedded Software Design

Firmware and Microcode Programming Windows Application (GUI) Programming/Windows Device Driver (WDM) Programming

Embedded User Interface Design / lSystem Hardware Design

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