STEVAL-FCU001V1 Data brief Flight controller unit evaluation board for toy drones Features Compact flight controller unit (FCU) evaluation board complete with sample firmware for a small or medium sized quadcopter On-board LiPo 1-cell battery charger Possibility to directly drive 4 DC brushed motors through the low voltage on- board MOSFET or alternatively use external ESC for DC brushless motor configuration Main components: STM32F401 32-bit MCU with ARM Cortex LSM6DSL iNEMO intertial module: 3D accelerometer and 3D gyroscope LIS2MDL High performance 3D magnetometer LPS22HD MEMS pressure sensor: 260-1260 hPa absolute digital output barometer SPBTLE-RF Very low power module for Bluetooth Smart v4.1 STL6N3LLH6 - N-channel 30 V, 6 A STripFET H6 Power MOSFET STC4054 - 800 mA standalone linear Li-Ion battery charger RoHS compliant WEEE compliant Description The STEVAL-FCU001V1 is designed to support quadcopter drone designers. Product summary A complete sample firmware project allows the designer to begin flying small or medium sized quadcopters (with brushed or brushless DC motors) immediately and Flight controller unit STEVAL- evaluate the performance of the IMU sensors under real flight conditions. evaluation board for toy FCU001V1 drones The FCU can be controlled by a standard external remote controller (PWM input iNEMO 6DoF inertial interface) or by a smartphone or tablet through the on-board Bluetooth low energy LSM6DSL measurement unit module (CE, FCC, ARIB, BQE certified). Magnetic sensor, digital Magnetometer and pressure sensors are also embedded to support 3D navigation output, 3-axis LIS2MDL applications. magnetometer SWD, IC and USART connectors are available for firmware development and Piezoresistive absolute debugging, and to support additional external sensors or RF modules. pressure sensor digital LPS22HD output barometer Very low power module SPBTLE-RF for Bluetooth Smart v4.1 N-channel, STripFET STL6N3LLH6 H6 Power MOSFET 800 mA standalone linear Li-Ion battery STC4054 charger Drone remote controller AppDrone app for Android Reference design STSW-FCU001 firmware for mini drones DB3394 - Rev 2 - January 2019 www.st.com For further information contact your local STMicroelectronics sales office.STEVAL-FCU001V1 Schematic diagrams 1 Schematic diagrams Figure 1. STEVAL-FCU001V1 block diagram LD39015 STC4054 CN1 P8 3V3 Micro SPBTLE-RF LDO JTAG Battery charger USB connector BLE module LiPo 1-cell P1, P2, battery P4, P5 BT1 4 x 3-ph SPI2 ESC x 4 USB JTAG motor SPI1 A + G IMU 4 x LSM6DSL TIM4 Power MOS x4 DC PWM out motor Magnetometer STL6N3LLH6 LIS2MDL 32-bit MCU P1, P2, P4, P5 TIM2 input PWM Remocon RX* capture LPS22HD Pressure Sensor P6 I2C UART UART1 I2C2 connector connector P7 P3 STM32F401 Figure 2. STEVAL-FCU001V1 circuit schematic (1 of 4) SPBTLE-RF U1 ANT. 1 11 RST EXT LPCLK RESETN BLE RSTN 2 10 CSN NC1 SPI CS BLE CS 3 9 MOSI NC2 SPI MOSI S1 MOSI IRQ 4 8 MISO BLE IRQ S1 MISO SPI IRQ SPI MISO 5 7 CLK VDD VIN SPI CLK S1 CLK SMD 0805 R1 C1 47k 16V 1F SPBTLE-RF SMD 0402 DB3394 - Rev 2 page 2/6 6 GND