ST STEVAL-FCU001V2 Getting Started

ST STEVAL-FCU001V2 Getting Started

Flight controller unit evaluation board for mini drones
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UM2958
User manual
Getting started with the STEVAL-FCU001V2 flight controller unit evaluation board
for mini drones
Introduction
The
STEVAL-FCU001V2
evaluation board is designed as a simple platform to develop flight controller unit (FCU) solutions for
quadcopters.
A complete sample firmware project (STSW-FCU001) allows you to begin flying small or medium sized quadcopters equipped
with DC motors (thanks to four 30 V-9 A on-board MOSFETs), and larger quadcopters with external ESCs (that is,
STEVAL-
ESC001V1
or STEVAL-ESC002V1).
You can control the board via BLE connectivity (using a smartphone or a tablet) or via an RF receiver module connected to the
PWM input port.
®
®
The system embeds a high-performance Arm
Cortex
-M4 microcontroller unit (STM32F401CCU6), an iNEMO inertial module
®
(LSM6DSR), a Bluetooth
low energy module (BlueNRG-M0A), power management circuitry that allows fast charge of the
(TM)
(TM)
battery (STC4054), and four
STL10N3LLH5
N-channel 30 V, 9 A, PowerFLAT
STripFET
V Power MOSFET to drive a
quadcopter motor.
An additional barometric pressure sensor (LPS22HH) provides altitude estimation.
This reference design can be used to develop sophisticated auto-navigation algorithms thanks to more than 100 DMIPS
available on the STM32 and the scalability of the board, which can be connected to the
Teseo-LIV3F
GNSS module or to a set
of Time-of-Flight sensors like the VL53L5CX.
The system passed the RF test for European certification, FCC certification, and IC certification (FCC ID: S9NBNRGM0AL and
IC: 8976C-BNRGM0AL).
Figure 1.
STEVAL-FCU001V2 evaluation board
Notice:
For dedicated assistance, please submit a request through our online support portal at www.st.com/support.
UM2958 - Rev 2 - June 2024
www.st.com
For further information contact your local STMicroelectronics sales office.

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Summary of Contents for ST STEVAL-FCU001V2

  • Page 1: Figure 1. Steval-Fcu001V2 Evaluation Board

    The system passed the RF test for European certification, FCC certification, and IC certification (FCC ID: S9NBNRGM0AL and IC: 8976C-BNRGM0AL). Figure 1. STEVAL-FCU001V2 evaluation board Notice: For dedicated assistance, please submit a request through our online support portal at www.st.com/support. UM2958 - Rev 2 - June 2024 www.st.com For further information contact your local STMicroelectronics sales office.
  • Page 2: Getting Started

    Package contents STEVAL-FCU001V2 evaluation board package contains: • the evaluation board itself • the ST-LINK adapter with its programming cable to be used with the ST-LINK/V2 STLINK-V3SET Figure 2. STEVAL-FCU001V2 evaluation board: package contents System requirements To use the board, the following system specifications are required: •...
  • Page 3: Hardware Description

    STC4054 800 mA Li-ion and LiPo battery charger directly from USB USBULC6-2M6 ultra large bandwidth ESD protection Figure 3. STEVAL-FCU001V2 evaluation board components Hardware architecture overview The whole system can be split in five different subsystems: • microcontroller •...
  • Page 4: Board Connectors

    Hardware description The sensors and the BlueNRG-M0A devices are connected to the microcontroller through two separate SPI peripherals. Figure 4. STEVAL-FCU001V2 evaluation board functional block diagram Board connectors STEVAL-FCU001V2 evaluation board includes several hardware connectors (see Figure • USB micro B female plug •...
  • Page 5: Table 1. Battery 2-Pin Header Connector (Bt1)

    Depending on the kind of motor, you have to solder the male strip line on the board or directly on the motors pins. In the STSW-FCU001, an association between Px connector and motor placement on the drone structure has been considered (for further information, refer to UM2512 on www.st.com). Table 2.
  • Page 6: Table 3. Uart 4-Pin Header Connector (P7)

    Hardware description Note: You can refer to the datasheet of the motor to distinguish + and - wire colors. As in many commercial flight controllers, the STEVAL-FCU001V2 hosts a UART and an I²C to connect external peripherals. Table 3. UART 4-pin header connector (P7)
  • Page 7: St-Link Connection

    STEVAL-FCU001V2 package as described in Section 1.2) to the board and then to the laptop. Figure 6. ST-LINK/V2 connected to the STEVAL-FCU001V2 evaluation board via adapter Figure 7. ST-LINK/V3 connected to the STEVAL-FCU001V2 evaluation board via adapter Note: ST-LINK/V2 STLINK/V3SET are not included in the package.
  • Page 8: System Setup Guide

    How to use the board with the preinstalled firmware Step 1. Connect a LiPo one-cell battery to BT1 battery connector of the STEVAL-FCU001V2, paying attention to the polarity, as shown below. Figure 8. STEVAL-FCU001V2 and LiPo battery connection Caution: There is no protection for reverse connection on the circuit.
  • Page 9: Figure 10. St_Ble_Drone - Discovering Devices

    The app shows the battery value and RSSI of the Bluetooth low energy connectivity. Note: To avoid issues, in case you are using more than one STEVAL-FCU001V2 evaluation boards in your operating space, you have to reprogram them to show a different name to avoid issues. Step 5.
  • Page 10: How To Use The Board With Your Own Firmware

    The voltage on M1, M2, M3 and M4 change according to the drone flight rules. How to use the board with your own firmware Step 1. Connect a LiPo one-cell battery to BT1 battery connector of the STEVAL-FCU001V2, paying attention to the polarity, as shown below. Figure 15.
  • Page 11 UM2958 System setup guide Step 2. Connect the ST-LINK adapter included in the package to the ST-LINK/V2 (or STLINK/V3SET) and the STEVAL-FCU001V2 evaluation board. Step 3. Connect a USB cable to a PC and to the micro-USB connector (CN1) to supply the board.
  • Page 12: Schematic Diagrams

    Schematic diagrams Figure 16. STEVAL-FCU001V2 – circuit schematic (1 of 4) BLUENRG-M0A ANT. RS T BLE_RS TN EXT_LPCLK RESETN CS N BLE_CS SPI_CS MOS I S 1_MOS I SPI_MOSI MIS O BLE_IRQ S 1_MIS O SPI_IRQ SPI_MISO S 1_CLK SPI_CLK...
  • Page 13: Figure 17. Steval-Fcu001V2 - Circuit Schematic (2 Of 4)

    Figure 17. STEVAL-FCU001V2 – circuit schematic (2 of 4) VBAT+ BAT60J BAT60J BAT60J BAT60J MOTOR1- MOTOR2- MOTOR3- MOTOR4- MOTOR1 MOTOR2 MOTOR3 MOTOR4 VBAT+ S TL10N3LLH5 S TL10N3LLH5 S TL10N3LLH5 S TL10N3LLH5 VBAT_S ENS E 100nF VBAT+ VBAT+ S older_Bridge MOTOR1-...
  • Page 14: Figure 18. Steval-Fcu001V2 - Circuit Schematic (3 Of 4)

    Figure 18. STEVAL-FCU001V2 – circuit schematic (3 of 4) V_US B V_US B RS 702-5481 Mole x 47590-0001 US B_DP US B_DP VBus US B_DM US B_DM S MD 0402 S MD 0402 V_US B US BULC6-2M6(uQFN) 100nF 100nF uQFN6X145X1...
  • Page 15: Figure 19. Steval-Fcu001V2 - Circuit Schematic (4 Of 4)

    Figure 19. STEVAL-FCU001V2 – circuit schematic (4 of 4) S 2_CLK VDD_IO SCL/SPC S 2_S DI S 2_S DO SDA/SDI/SDO SDO/SA0 S 2_S DO SDO/SA0 LP S 22HH_CS GND1 INT2 GND2 INT_DRDY INT1 100nF LP S 22HH LS M6DS R...
  • Page 16: Bill Of Materials

    UM2958 Bill of materials Bill of materials Table 7. Bill of materials Item Q.ty Ref. Part/Value Description Manufacturer Order code Strip line male Battery Connector, 1X2 pitch 2.54 Adam Tech PH1RA-02-UA siptm2002 mm 90 degrees Micro_USB 2.0 Female Micro-USB Molex 47590-0001 SMt, microusb7025481 connector...
  • Page 17 UM2958 Bill of materials Item Q.ty Ref. Part/Value Description Manufacturer Order code Strip Line Wurth USART, siptm4004 male 1X4 61300411121 Elektronik pitch 2.54 mm Connector SWD, 2X5 pitch 1,27 SAMTEC FTSH-105-01-F-D-K Ampmode10X1M27 N-channel 30 V, 0.021 Ohm typ., 6 A Q1,Q2,Q3,Q STL6N3LLH6, STripFET H6...
  • Page 18 UM2958 Bill of materials Item Q.ty Ref. Part/Value Description Manufacturer Order code accelerator Ultra large USBULC6-2M6(uQFN), bandwidth USBULC6-2M6 uQFN6X145X1 protection 800 mA standalone linear Li-Ion STC4054GR, SOT23L5 battery STC4054GR charger with thermal regulation 150 mA low quiescent LD39015M33R, sot23l5 current low LD39015M33R noise voltage regulator...
  • Page 19: Board Versions

    UM2958 Board versions Board versions Table 8. STEVAL-FCU001V2 versions Finished good Schematic diagrams Bill of materials STEVAL$FCU001V2A STEVAL$FCU001V2A schematic diagrams STEVAL$FCU001V2A bill of materials 1. This code identifies the STEVAL-FCU001V2 evaluation board first version. UM2958 - Rev 2 page 19/25...
  • Page 20: Regulatory Compliance Information

    Conformity. Notice for the United Kingdom The kit STEVAL-FCU001V2 is in compliance with the UK Radio Equipment Regulations 2017 (UK SI 2017 No. 1206 and amendments) and with the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 (UK SI 2012 No.
  • Page 21: Revision History

    UM2958 Revision history Table 9. Document revision history Date Revision Changes 22-Aug-2023 Initial release. Updated Introduction, Section 2: Hardware description, Section 3: System setup guide, 24-Jun-2024 Section 3.1: How to use the board with the preinstalled firmware, Section 3.2: How to use the board with your own firmware Section 4: Schematic diagrams.
  • Page 22: Table Of Contents

    ST-LINK connection ........
  • Page 23: List Of Tables

    STEVAL-FCU001V2 versions ........
  • Page 24: List Of Figures

    STEVAL-FCU001V2 evaluation board functional block diagram ........
  • Page 25 ST’s terms and conditions of sale in place at the time of order acknowledgment. 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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