Add new MindPX v2.8 and MindRacer V1.2 hardware

README.md

@@ -31,9 +31,9 @@ The Pixhawk v2 Hardware is the result of a collaboration of the open hardware de
 
 MindPX V2 Hardware
 ===================
+http://www.mindpx.net
 
 MindPX V2 board (Hardware version:   v2.2)
-http://www.mindpx.net
 
 Product brief:
 http://www.mindpx.net/assets/accessories/brochure.pdf
@@ -59,6 +59,46 @@ Revisions against Pixhawk:
 
 Note: MindPX v2.2 supports maximum 6 direct PWM outputs.
 
+New member in MindPX family!
+MindPX V2.8 board
+
+Product brief:
+http://www.mindpx.net/assets/accessories/brochure.pdf
+
+Hardware specification:
+http://www.mindpx.net/assets/accessories/Specification_MindPX.pdf
+
+User manual:
+http://www.mindpx.net/assets/accessories/UserGuide_MindPX.pdf
+
+Key features of v2.8:
+
+1. 8 main PWM outputs + 8 aux PWM outputs
+2. Dual-redundancy IMU components (onboard HMC5883L compass)
+3. Support PPM/SBUS/SPEKTRUM DSM/Satellite RC input
+4. Support FrSky/Wifi telemetry
+5. One extra I2C port (so can support external compass and px4flow simultaneously)
+6. Secondary USB port  for companion computer (converted from UART2 using onboard CP2104)
+7. nrf/SPI port for SPI devices
+8. exposed SWD debug port
+9. Built-in vibration dampening for isolated IMU, support hard mount on air frames.
+10. LTC2875 as CAN controller (+/- 60V overvoltage fault protection)
+
+MindRacer V1.2 board (Hardware version: v1.2)
+
+Key features of v1.2:
+1. 35 x 35mm (30.5 mm mounting holes) ultra mini size, weight only 7g
+2. STM32F427 as processor
+3. 6 main PWM outputs
+4. onboard MPU6500 & HMC5883L
+5. dual 2x7 stackable header pins for I/O port replication/expansion
+6. optional IMU isolation mounting support
+7. Support PPM/SBUS/SPEKTRUM DSM/Satellite RC input
+8. Support FrSky/Wifi telemetry
+9.  onboard RTC batter and TF card slot
+10. DroneCode standard compliance connector
+
+Note: MindPX v2.8 & MindRacer v1.2 share same firmware.
 
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