This stack is a one and done deal. No re-stocking or after-sale support, hence the low price.
It has only been opened up for test-fitting purposes, never been soldered to or flown. Basically brand new.
• MCU: STM32F722RGT6 216MHz
• IMU: BMI270 (SPI)
• OSD: Betaflight OSD & DJI HD OSD (UART6)
• 6 hardware UARTS (UART1,2,3,4,5,6)
• Barometer: YES
• Buzzer Pad: YES
• 5V 2A & 10V 2A
• Input Voltage: 3-6S Lipo
• Blackbox: 16MB
• Firmware: SKYSTARS F7HDPRO
• Dimensions: 31x30x7.8mm
• Mounting Holes: Standard 20mm/M3 or M2 square to center of holes
• Weight: 6g
• Designed the LED installation position in the four corners,support WS2812 Programable LED.
• Supports serial receivers (CRSF,SBUS, iBus, Spektrum) . Support 3.3V Satellite Receiver.
• High-performance / low-noise / high sensitivity IMU. BMI270 with 6-axis gyro and
.• Support connect DJI HD air module.
• Input voltage10V-26V (3-6S)
• Automatic voltage monitoring.
Input voltage: 3-6S LiPo
Peak Current: 50A≥ 10S
Support : Dshot 600/1200
Mounting hole : 20X20 mm/M3
Product size: 31*36*3.9mm
1x Skystars KM40A 32Bit 3-6S 20×20 4in1 ESC