Edit History

Sidebar »

Equipment inventory » History » Version 10

DE GENDRE, Raphaëlle, 03/22/2016 10:52 PM

1 1 DE GENDRE, Raphaëlle 
h1. Equipment inventory
2 1 DE GENDRE, Raphaëlle 





    3
    1
    DE GENDRE, Raphaëlle
    





    4
    6
    DE GENDRE, Raphaëlle
    
The equipment we will be using is very similar to the one used in the project by previous student.Here is the recap:





    5
    7
    DE GENDRE, Raphaëlle
    
* Structure





    6
    7
    DE GENDRE, Raphaëlle
    
> * Cubesat 2U Chassis wall assembly





    7
    7
    DE GENDRE, Raphaëlle
    
* Electronics





    8
    6
    DE GENDRE, Raphaëlle
    
> * Development board: 710-00297





    9
    6
    DE GENDRE, Raphaëlle
    
> * Pluggable Socketed Processor Module D, for dsPIC33FJ256GP710: 710-00608





    10
    6
    DE GENDRE, Raphaëlle
    
> * Motherboard (MB): 710-00484





    11
    6
    DE GENDRE, Raphaëlle
    
> * Pluggable Processor Module D2 with Microchip® dsPIC33FJ256GP710: 710-00528





    12
    6
    DE GENDRE, Raphaëlle
    
> * Protoboard Kit: 711-00303





    13
    6
    DE GENDRE, Raphaëlle
    
> * DC Sources: +5Vdc, +9Vdc





    14
    6
    DE GENDRE, Raphaëlle
    
> * RF 434 Mhz PLL 2-FSK Transmitter from Aurel: TX-4MAVPF10





    15
    1
    DE GENDRE, Raphaëlle
    
* Software





    16
    6
    DE GENDRE, Raphaëlle
    
> * MPLAB X IDE from Microchip





    17
    6
    DE GENDRE, Raphaëlle
    
> * MPLAB XC16 compiler for 16 bits PIC processors, from Microchip





    18
    6
    DE GENDRE, Raphaëlle
    
> * Salvos RTOS





    19
    6
    DE GENDRE, Raphaëlle
    
> * Cubesat Kit Software drivers





    20
    6
    DE GENDRE, Raphaëlle
    
> * Processor dsPIC33FJ256GP710 drivers





    21
    6
    DE GENDRE, Raphaëlle
    
> * Drivers for EFFS-THIN Flash File System for SD Cards (from HCC-Embedded)





    22
    1
    DE GENDRE, Raphaëlle
    
* Tools





    23
    6
    DE GENDRE, Raphaëlle
    
> * ICD3 In Circuit Debugger from Microchip





    24
    6
    DE GENDRE, Raphaëlle
    
> * PC work station with Linux and PC with Windows





    25
    6
    DE GENDRE, Raphaëlle
    
> * Electronic components: resistors, leds, wires, breadboards, etc.





    26
    6
    DE GENDRE, Raphaëlle
    
> * Soldering station





    27
    6
    DE GENDRE, Raphaëlle
    
> * Interface cables: serial SUB-D 9, USB A/B, etc.





    28
    6
    DE GENDRE, Raphaëlle
    
> * Blue anti-static mat with wrist straps and cords





    29
    1
    DE GENDRE, Raphaëlle
    





    30
    8
    DE GENDRE, Raphaëlle
    
*Cubesat kit*





    31
    8
    DE GENDRE, Raphaëlle
    





    32
    4
    DE GENDRE, Raphaëlle
    
!{width:50%}cubesat.jpg!





    33
    1
    DE GENDRE, Raphaëlle
    





    34
    10
    DE GENDRE, Raphaëlle
    





    35
    1
    DE GENDRE, Raphaëlle
    
The CubeSat Kit is composed of an aluminum chassis of 2U volume, compliant with the Cubesat standard. It contains an electronic board at the bottom, where the microcontroller is placed. Other modules can be stacked one on top of the other. The interface between the boards is done through the CubeSat Kit Bus, composed of 104 pins connected to the microcontroller’s I/O pins, Serial Port, and Power Supply.





    36
    1
    DE GENDRE, Raphaëlle
    
Other interfaces present in the main module are an USB port and a Power Supply connector. Also, as required by the Cubesat standard, there is a Remove Before Flight pin, and Launch switches.





    37
    1
    DE GENDRE, Raphaëlle
    
The microcontroller present in the main module is a Microchip dsPIC33FJ256GP710 , a 16-bit general purpose digital signal controller, with an industrial temperature range of operation (-40ºC to +85ºC) and low power consumption. The code can be programmed in C, and then compiled into a set of optimized instructions. The MCU can be programmed with Pumpkin´s Salvo Real-Time Operating System (RTOS) to facilitate rapid software development.





    38
    1
    DE GENDRE, Raphaëlle
    
The kit does not include a power unit, nor any communication system (RF transmitter and antenna); this modules vary from mission to mission, and must be supplied by the user.





    39
    1
    DE GENDRE, Raphaëlle
    





    40
    10
    DE GENDRE, Raphaëlle
    





    41
    8
    DE GENDRE, Raphaëlle
    
*Development board*





    42
    8
    DE GENDRE, Raphaëlle
    





    43
    1
    DE GENDRE, Raphaëlle
    
!devboard.jpg!





    44
    8
    DE GENDRE, Raphaëlle
    





    45
    10
    DE GENDRE, Raphaëlle
    





    46
    1
    DE GENDRE, Raphaëlle
    
The Development Board (DB) is a single board computer development platform, used to perform CubeSat Kit training, development, debugging and testing.





    47
    1
    DE GENDRE, Raphaëlle
    
It contains an open architecture, capable of accepting different processor modules; a power supply unit. It can be easily interfaced with other boards, with two stackable 104-pin CubeSat Kit Bus, connected to the MCU; and with a computer through a RS-232 port and an USB port, connected to the MCU UART1 and UART2. The USB port uses a FTDI serial-to-USB converter.





    48
    1
    DE GENDRE, Raphaëlle
    
There is also present a MMC/SD card socket for mass storage, and an bus compatible with MHX transceiver. The DB includes Separation and Remove Before Flight switches.





    49
    1
    DE GENDRE, Raphaëlle
    





    50
    8
    DE GENDRE, Raphaëlle
    
*RF Transmitter*





    51
    8
    DE GENDRE, Raphaëlle
    





    52
    10
    DE GENDRE, Raphaëlle
    





    53
    5
    DE GENDRE, Raphaëlle
    
!rftransmitter.png!





    54
    8
    DE GENDRE, Raphaëlle
    





    55
    10
    DE GENDRE, Raphaëlle
    





    56
    1
    DE GENDRE, Raphaëlle
    
The transmitter used for the RF communication is a TX-4MAVPF10 fabricated by Aurel Wireless. It is a 434 MHz PLL 2FSK Transmitter in compliance with European Normative. The emitted power is 10dBm maximum, and the deviation between the ON and OFF frequencies is +/- 35 KHz.





    57
    1
    DE GENDRE, Raphaëlle
    





    58
    10
    DE GENDRE, Raphaëlle
    





    59
    1
    DE GENDRE, Raphaëlle
    
	





    60
    9
    DE GENDRE, Raphaëlle
    
*Thermocouple*





    61
    9
    DE GENDRE, Raphaëlle
    





    62
    10
    DE GENDRE, Raphaëlle
    





    63
    10
    DE GENDRE, Raphaëlle
    





    64
    5
    DE GENDRE, Raphaëlle
    
!thermocouple.jpg!





    65
    10
    DE GENDRE, Raphaëlle
    





    66
    10
    DE GENDRE, Raphaëlle
    





    67
    10
    DE GENDRE, Raphaëlle
    





    68
    10
    DE GENDRE, Raphaëlle
    
The thermocouple that we will be using is a thermocouple of class K 2MPTFE. It is composed of Chromel (nickel + chrome) / Alumel (nickel + aluminium (5 %) + silicium).This kind of thermocouple is the most widely used because it is very affordable. It has a sensitivity of 41 µV/°C and goes theoritically from -270 à 1372°C. It actually works continuously from 0 °C to 1 100 °C and 	intermittently from -180 °C to 1 200 °C. It is pretty resistant to radiation, which is very important when you want to send the material to space but it lacks of stability