ST STEVAL-RFPLUG01 User Manual
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ST STEVAL-RFPLUG01 User Manual

ST STEVAL-RFPLUG01 User Manual

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UM2366
User manual
Getting started with the STEVAL-RFPLUG01 RF smart plug based on
STM32L443
Introduction
The
STEVAL-RFPLUG01
evaluation board has been physically tested and validated; it is not for sale.
It is a virtual board intended as a general reference to help you develop your own custom solutions.
It is designed to be used in home automation for Internet of Things (IoT) applications and embeds the core functionality required
for a secure communication.
It has the capability of wireless connectivity over sub-GHz or BLE and can also measure energy parameters such as power,
voltage, current and power factor via the
STPM32
metering IC.
You can use the Triac to control the load, and the isolated USB port and dual EEPROM (M24LR) to communicate with GUI and
NFC.
Figure 1.
STEVAL-RFPLUG01 evaluation board
UM2366 - Rev 1 - February 2018
www.st.com
For further information contact your local STMicroelectronics sales office.

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Summary of Contents for ST STEVAL-RFPLUG01

  • Page 1: Figure 1. Steval-Rfplug01 Evaluation Board

    UM2366 User manual Getting started with the STEVAL-RFPLUG01 RF smart plug based on STM32L443 Introduction STEVAL-RFPLUG01 evaluation board has been physically tested and validated; it is not for sale. It is a virtual board intended as a general reference to help you develop your own custom solutions.

  • Page 2: Getting Started

    UM2366 Getting started Getting started Board main components STEVAL-RFPLUG01 evaluation board embeds the following components by ST: • STM32L443CCT6 (Ultra-low power microcontroller with FPU ARM® Cortex®-M4 MCU 80 MHz) • M24LR (4-Kbit dynamic NFC/RFID tag with password protection ) •...

  • Page 3: Package Contents

    Rated voltage of 240 V • Rated current of 12 A (typ.) • Power rating up to 2400 W/12 Amps • Plug power consumption of 0.7 W (max.) Package contents STEVAL-RFPLUG01 evaluation board package includes: • Hardware – STEVAL-RFPLUG01 • Software –...

  • Page 4: System Architecture

    (ideal for applications where large current is not needed and small form factor is required). In the STEVAL-RFPLUG01 evaluation board, the supply output is set at 4.5 V. The LD39050, having output voltage and current of 3.3 V and 500 mA, is used to power all the analog and digital sections up.

  • Page 5: Figure 6. Ac Voltage Status At 50% Duty Cycle (Controlled By Triac)

    UM2366 System architecture Triac is a three-terminal component used to control the current and switch AC in various electrical system applications. It can also change the duty cycle of the AC voltage applied to the lights/load controlled. Figure 6. AC voltage status at 50% duty cycle (controlled by Triac) Zero crossing detection (ZCD) is used to dim the reference point to fire the Triac accordingly.

  • Page 6: State Machine

    UM2366 State machine Figure 8. ZCD output waveform State machine This state machine represents: • BLE profiles initialization – Initialization of all peripherals – Initialization of MAC (GAP Role-Device is in Peripheral Role, GATT-Device is in Server mode) – Initialization of Services: ◦...

  • Page 7: User Interface

    UM2366 User interface User interface Figure 10. STEVAL-RFPLUG01 user interface STEVAL-IDI005V1 evaluation board controls the dimming and turning the load on or off, via two buttons: • User button 1 decreases the brightness level or turns the load off; •...

  • Page 8: Hardware Description

    UM2366 Hardware description Hardware description STM32L443CCT6 ® ® STM32L443CCT6 is an ultra-low power microcontroller with FPU ARM Cortex -M4. It mainly features: crystal-less USB, 100 DMIPS and operating voltage from 1.71 to 3.6 V. It has 12-bit ADC (5 Msps), an internal voltage reference buffer, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer, four general-purpose 16-bit timers and two 16-bit low-power timers.

  • Page 9: Sp1Ml-868

    UM2366 SP1ML-868 SP1ML-868 SP1ML-868 is a ultra-low power and fully integrated RF module operating in the 868 MHz SRD ISM band. The module is compact-size, integrating an on-board antenna with easy-to-use interface, allowing users to easily add wireless connectivity in designs without requiring in-depth RF experience. The module is based on the SPIRIT1 RF sub-GHz transceiver (with integrated SMPS), STM32L1 microcontroller,...

  • Page 10: Board Layout

    UM2366 Board layout Board layout Figure 14. STEVAL-RFPLUG01 top layer UM2366 - Rev 1 page 10/21...

  • Page 11: Figure 15. Steval-Rfplug01 Bottom Layer

    UM2366 Board layout Figure 15. STEVAL-RFPLUG01 bottom layer UM2366 - Rev 1 page 11/21...

  • Page 12: Schematic Diagram

    UM2366 Schematic diagram Schematic diagram Figure 16. STEVAL-RFPLUG01 circuit schematics UM2366 - Rev 1 page 12/21...

  • Page 13: Bill Of Materials

    UM2366 Bill of materials Bill of materials Table 2. STEVAL-RFPLUG01 bill of materials Item Q.ty Ref. Part/Value Description Manufacturer Order code QFN-24L ASSP for STPM32TR metering applications with up to four independent 24-bit 2nd order sigma- delta ADC VFDFPN 6L...
  • Page 14 UM2366 Bill of materials Item Q.ty Ref. Part/Value Description Manufacturer Order code C4, C7, C8, C9, C11, 150 pF 50 V ±5% Ceramic Taiyo Yuden UMK105CG151JV-F C15, C19, C24, C31 SMD0402 capacitors C5, C10, C18, C20, 100 nF 16 V Ceramic Yageo CC0402KRX7R7BB104...
  • Page 15 UM2366 Bill of materials Item Q.ty Ref. Part/Value Description Manufacturer Order code R13, R64 1.0M OHM 1/10 Resistors Panasonic ERJ-2GEJ105X W ±5% SMD0402 R16, R22 4.7 K OHM ±5% Resistors Rohm ESR03EZPJ472 1/4W SMD 0603 Semiconductor R17, R18, R19, R58, 270 K miniMELF Resistors Vishay...
  • Page 16 UM2366 Bill of materials Item Q.ty Ref. Part/Value Description Manufacturer Order code J10, J11, J12, J13 2.54 mm pitch 1 pin D.N.M connector for external supply (connecting point) Through Hole Micro USB Molex 475890001 connector Through hole, 10 pin Cortex On Shore 302-S101 1.27 mm...

  • Page 17: Revision History

    UM2366 Revision history Table 3. Document revision history Date Version Changes 15-Feb-2018 Initial release. UM2366 - Rev 1 page 17/21...

  • Page 18: Table Of Contents

    UM2366 Contents Contents Getting started..............2 Board main components .
  • Page 19 STEVAL-RFPLUG01 bill of materials ........
  • Page 20 STEVAL-RFPLUG01 evalution board main components........
  • Page 21 ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’...

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