Hi, I've 10 years of Embedded system product development using MCUs and parapherals like LCD, external memory and sensing analog signals forvoltg and currents, please see below,
The key points and key features are:
1) Project developed with Atollic studio: I've used keil development tools and I can develop for other tools as well
2) Send the sensors data through a Virtual Serial Port: I've used hall effect, temperature sensors for different application and ritten data acquasition software
3) The output format from the serial port should be compatible with multiwii software.: can be done
4) Support for LPS331AP barometer or another at your choice.: can be implimented
5) GPS module support. The Gps module can be suggested by the freelance, details about it will be given after the bids are complete.: yes can be implimented
6) Save the data from all the sensors on the board and the GPS and the baromiter values on an external SD card (micro SD card).: Experienced in this programm
7) Use of known library for SD card filesystem: familar with Errase block method of handling sd card
8) Bluetooth module support for sending the same data sent via serial. Suggestions on the Bluetooth module are welcome.: can be implemented
9) LCD display: can be implemented
Function definition to be mapped on the button present on the board.
10) Start acquisition: can be implemented
11) Stop Acquisition: can be implemented
12) Save Data: can be implemented
13) Stop Saving data: can be implemented
12) Show sensors data (converted in the right unit) on the display: can be implemented