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Ultra-Compact Sensor – A Breakthrough Solution for the IoT Ecosystem

In the era of smart connectivity, the demand for real-time monitoring of environments, devices, and data is becoming increasingly essential. With decades of experience in the semiconductor and electronics industry, Toshiba & EPSON offers a comprehensive IoT sensor solution — integrating multiple sensors and wireless signal transmission. This solution is ideal for applications in industrial environments, smart cities, and modern homes.

EPI is proud to be an authorized distributor of genuine electronic components in Vietnam. In collaboration with Toshiba & EPSON, EPI delivers optimal and efficient solutions for various industries. For the IoT sector, Toshiba’s sensor products are modern, compact, and highly suitable for a wide range of applications.

Convenient Wireless Data Transmission

  • Equipped with an integrated wireless transmitter (Wireless TX) for fast and seamless connection to gateways or the cloud.
  • Reduces wiring costs and enables easy installation in any location.

Temperature & Humidity Sensor:

  • Monitors environmental conditions in factories, cold storage, and smart buildings.
  • Applications: HVAC control, overheating alerts, and maintaining optimal humidity for products and equipment.

Gas Sensor

  • Detects flammable or toxic gases (VOC, CO, CH₄, etc.) to ensure operational safety.
  • Applications: Technical rooms, industrial kitchens, explosion/fire warning systems.

Light Sensor

  • Measures ambient light intensity to support automatic lighting control.
  • Applications: Smart buildings, high-tech agriculture, and greenhouses.

Optimal Power Efficiency

  • Utilizes Toshiba’s low-power MOSFETs, LDOs, and ICs to extend battery life.

Key Advantages:

  • Quick Deployment: Ready-to-use reference design with fully recommended Toshiba components

  • Easy Scalability: Expandable with additional sensors or wireless modules (BLE/Wi-Fi/Sub-GHz)

  • Cost Efficiency: Optimized BOM using high-quality Toshiba components

  • High Reliability: Built on world-leading semiconductor technology

Key Components Used in the Circuit

1. MCU – TMPM4K1FWBUG (Toshiba)
Specifications:

  • Core CPU: ARM Cortex-M4 with FPU, up to 120 MHz

  • Memory: 128 KB Flash, 18 KB RAM

  • Operating Voltage: 2.7 – 5.5 V

  • Operating Temp: –40 °C to +105 °C

  • Internal Bus: 32-bit

  • Peripherals: GPIO, UART, I2C, SPI, ADC, etc.

  • Features: Watchdog Timer, Power-on Reset, Voltage Detection, Standby Modes (IDLE/STOP1)

  • Internal Oscillator Accuracy: <±1%

Learn more: TMPM4K1FWBUG

2. TC75S102F – CMOS Operational Amplifier (Toshiba)
Specifications:

  • Type: Single-channel CMOS op-amp

  • Operating Voltage: Single-supply 1.5–5.5 V; Dual ±0.75–±2.75 V

  • Supply Current: Only 0.27 μA (typ.)

  • Gain Bandwidth Product: ~0.63 MHz

  • Max Output Current: 25 mA

  • Input Offset Voltage: Typ. ±0.1 mV, Max ±1.3–1.7 mV

Learn more: TC75S102F

3. FC-135 – Crystal Oscillator (Epson)
Specifications:

  • Size: 3.2 × 1.5 × 0.80 mm

  • Frequency: 32.768 kHz

  • Operating Temp: –40 °C to +105 °C

Learn more: FC-135

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Block diagram

Contact EPI Vietnam Technologies Design solution

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