let me start a new build log on a second CamCruiser that is under construction. This one will use a M4 instead of the AQ6, different motors and Quatos instead of PIDs.
Will continue to post in 'picture book style' since I will need the weight of all components for Quatos later --> you will see my kitchen scale quite often
![Wink ;)](./images/smilies/icon_e_wink.gif)
Let's start with the heart of the new copter - my new Mav2Telem 0r2 'main board'. It's similar to the one I'm using in my other CamCruiser, except that it now features an expansion connector and carries an M4 adapter PCB.
- Side view on the uSS socket and the 3V3-level interface for Bluetooth. A 5V level connector is on the bottom of the Mav2Telem 0r2
- Mav2Telem 0r2 top view - the expansion connector holds all relevant signals, including CAN (for future use).
- Bottom view of the mating M4 adapter board. This features connectors for 2 additional PWM signals, Spektrum TM1000 telemetry transmitter, a second Spektrum Sat, uSD card, VCOM LDO, ...
- M4 connected to the boards. In case of the M4 beta boards (M4r4 and M4r5) only the CAN bus needs to be connected to the main board, for the M4 V2 a second wire is needed to sense the LiPo voltage (since V2 has integrated LiPo voltage divider) --> swapping the M4 between frames is quite easy!
For those asking their selfs what this board is good for:
- 5V/3A switching DC/DC, Vin = 42V max.
- 12V/1A switching DC/DC, Vin = 42V max.
- 3.3V/0.5A DC/DC (LDO)
- up to 8 powered CAN slots (4 on TOP, 4 on BOT)
- 5 IntelliLED WS2812B ports for signalling
- MavLink input (via expansion header from M4)
- Spektrum X-Bus interface for connecting to TM1000 and/or other sensors (simulated telemetrie sensors)
- HOTT telemetry output
- Current sensor input (for use with current sensor on external PDB/breakout board)
- Arduino ProMicro socket for ‚Mav2Telem‘ project
The M4 expansion boards adds:
- 4.2V LDO for VCOM (supplied to the M4 via M4's expansion header
- uSD socket
- Spektrum sat connector for 2. sat receiver
- TM1000 connectors (data port, voltage sensor) to simplify wiring