1、Can change the default firmware F3 EVO 1.13.0 by inputting set (motor_pwm_rate=1000 under, and save command to save) CLI command line of CF configuration software 2、32-bit SP RACING F3 EVO firmware 3、Perfect power input design allows 1S(4.2V) and 2S (8.4V) to supply power, and 2S power supply has more forceful flying experience 4、Independent circuit structure comes with boosting and reduced-voltage techniques, which provides 5V output with UART1/2 and 3.3V output with UART3 when inputing 1S / 2S power 5、STM32F303CCT6 + MPU6500 advanced hardware ensures more stable flying Features: Can change the default firmware F3 EVO 1.13.0 by inputting set (motor_pwm_rate=1000 under, and save command to save) CLI command line of CF configuration software. 32-bit SP RACING F3 EVO firmware. Perfect power input design allows 1S(4.2V) and 2S (8.4V) to supply power, and 2S power supply has more forceful flying experience. Independent circuit structure comes with boosting and reduced-voltage techniques, which provides 5V output with UART1/2 and 3.3V output with UART3 when inputing 1S / 2S power. STM32F303CCT6 + MPU6500 advanced hardware ensures more stable flying. High current NMOS provides >10A working current for every branch. Having flyback diode for every branch motor. Supporting signal input of PPM, SBUS and DSM receiver. With interface for buzzer and detecting battery voltage. Supporting most coreless motors, including 1020 and other similar coreless motors. Specifications: Color: As Pictures Size: 22 * 32.5mm / 0.9 * 1.3inch Thickness: 1.2mm / 0.05inch Package Weight: Approx. 5g Type: RC Accessory Receiver Configuration: DSM Receiver-Configurating UART3 of CF software in DSM interface 3.3V, GND, RX3. PPM & SBUS Receiver-Configurating UART2 of CF software in UART2 interface GND, +5V, RX2. Package Includes: 1 x Flight Controller Board with Cable and Sticker Only Notes: The default battery voltage is 1S (4.2V), and you can disconnect the short contacts of 1S and connect the 2 bonding pads of 2S for 2S battery voltage. Please detach the propellers when changing the program or debugging for the flight controller. Please set the max throttle value 2000 to effectively increase the flight time. Please don't connect 3 bonding pads simultaneously.