Difference between revisions of "Qbkit edu"
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Most of qbkit edu structure parts join together without fasteners by using a pin to hole approach. | Most of qbkit edu structure parts join together without fasteners by using a pin to hole approach. | ||
The flexibility of the 3d printed material allows the assembly of the structure. | The flexibility of the 3d printed material allows the assembly of the structure. | ||
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The CAD step files can be visualised and downloaded [http://a360.co/2qwHjsV here]. | The CAD step files can be visualised and downloaded [http://a360.co/2qwHjsV here]. | ||
A video showing the assembly can be seen [https://www.youtube.com/watch?v=vTJbGX0s0AQ here]. | A video showing the assembly can be seen [https://www.youtube.com/watch?v=vTJbGX0s0AQ here]. |
Revision as of 12:57, 5 May 2017
Contents
qbkit hardware
qbkit edu emulates the mechanical and electrical interfaces of a nanosatellite mission: power and data interfaces, flexible mechanical interfaces and an Open Source computing platform running Linux OS.
The main components of the qbkit edu are:
- qbkit edu electronics
- Beaglebone Open Source computer. - qbkit power and data interfaces shield for Beaglebone.
- 3d printed structure
qbkit edu electronics
Power buses
Qbkit edu electronics contain:
- Converter 1 and converter 2 step down converters with manually configurable voltage and up to 3A current rating. Factory configuration is the following one:
- Converter 1: 3.3V - Converter 2: 5V
- Converter 3: step up converter with manually configurable voltage. Range: from Vin (12V with adaptor supplied) to 28V. Current rating is limited by the qbkit edu power supply (12V at 2A max).
Each power bus contains a current sensor.
qbkit edu electronics contains another step down converter currently not being used.
Adjustment of power buses voltage
Voltage in each of the 3 power buses can be adjusted
Data buses
qbkit edu electronics contain the following data buses:
- CAN
- I2C
- SPI
- UART
- 2x GPIO
qbkit edu PL interface pinout
The following table shows the pin out of the payload connector on the qbkit edu electronics.
Header | Pin number | Pin name | Comment |
---|---|---|---|
Payload_power_P | 1 | DGN | Ground |
Payload_power_P | 2 | O3.3 | Converter 1 V+ 3V3 |
Payload_power_P | 3 | DGN | Ground |
Payload_power_P | 4 | O5 | Converter 2 V+ 5V |
Payload_power_P | 5 | DGN | Ground |
Payload_power_P | 6 | OH | Converter 3 V+ high power |
Payload_data_P | 1 | CAN_H | |
Payload_data_P | 2 | CAN_L | |
Payload_data_P | 3 | I2C_SCL | |
Payload_data_P | 4 | I2C_SDA | |
Payload_data_P | 5 | SPI_CS0 | |
Payload_data_P | 6 | SPI_SCLK | |
Payload_data_P | 7 | SPI_D0 | |
Payload_data_P | 8 | SPI_D1 | |
Payload_data_P | 9 | UART1_TXD | |
Payload_data_P | 10 | UART1_RXD | |
Payload_data_P | 11 | GPIO1_12 | |
Payload_data_P | 12 | GPIO1_13 |
qbkit 3D printed structure
This section explains the 3d printed structure that acts as baseline for your creations. The parts has been designed to be printed in ABS or PLA and takes into account the tolerances of 3d printing non-professional machines. Test prints might be needed and CAD models adjusted depending on your printer, settings and materials. The 3d printed structure is composed of two main parts:
- qbkit edu electronics box
- qbkit edu structure
Most of qbkit edu structure parts join together without fasteners by using a pin to hole approach. The flexibility of the 3d printed material allows the assembly of the structure.
The CAD step files can be visualised and downloaded here. A video showing the assembly can be seen here.