Difference between revisions of "Qbkit edu"

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Revision as of 12:37, 5 May 2017


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
Electronics1.png