v2.0 next hardware iteration

Some of the changes done for this version:

• Changed the PCB format to fit the aluminum enclosure 1455K1202 or 1455J1201.
• Redesigned the analog 3.3VA voltage supply with a capacity multiplier and a separate LDO after the 5V Buck converter.
• Introduced a separated analog section on the board and placed the regulator, filter and sensors there.
• Replaced the Bluetooth module with an esp32 for improved Bluetooth and WiFi connectivity.
• Removed the low cost Gyro, Acc and Mag components and added 3 mounting holes in 0.8inch distance for sparkfun headers.
• Removed the second MS5611 and improved the layout.
• Replaced the existing USART-3 connector with a Pixhawk standard JST-GH 6 pin Connector to connect and supply DGNSS simpleRTK2B+heading modules. 1: 5V_IN, 2: RX (3.3V level), 3: TX (3.3V level), 4,5: Not connected, 6: GND.
• Changed to two single RJ45 connectors for CAN and RS232.
• Added a footprint for a milled pressure hood including mounting screws to connect static and pitot on the PCBs edge.
• Redesigned the digital voltage supply regulators and added sufficient capacity.
• Added a separate boost converter to boost the USB Voltage.
• Added a Larus Symbol on the board.
• Changed the SMA to a u.fl connector for the GNSS Antenna.
• Added active current limiting of GNSS antenna feed with circuit taken from the U-Blox F9P hardware integration manual.
• Added ESD-protection diodes for voltage supply, GNSS antenna and USB connectors.
• Added thermal reliefs on copper fills to improve hand solder-ability.
• Added more status and error LEDs and labeling.
• Connected USB, RJ45 shields and aluminum enclosure to a separate shield ground net. Routed the shield ground around the PCB and connected it on one point with a ferrit to ground.
• Changed the RJ45 CAN pin out so that a twisted pair of a standard patch cable is used.
• Improved anti-alias filtering for supply voltage measurement.
• Added a switch for boot0 at the pcb edge.
• Added the missing GNSS reset pull-up resistor.
• Enabled detecting the hardware version with an ADC input and a 1:1 voltage divider for this version.
• Decreased test point size to 1mm

First produced version.

v1.0

added latest Schematic file.