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Hardware v0.1n

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The size is 46×59mm

Contents

Hardware available on the module

Connectors

1. Battery voltage connection The left pin should be connected to the ground of battery that should be measured (if it is not yet connected). The right pin should be connected to the + of the battery. Maximum measurable voltage is 16.8v.

2. 5V connection. Extra header connection to the 5V supply of the gluonpilot. Use it to power the gluonpilot, or the power something else if the gluonpilot already has a 5V power source.

3. Extra PWM servo outputs. These are PWM output channels 7 and 8. Because most users won't be using them, they don't have the usual GND and 5V signal so we can save some space. Only the PWM signal is available.

4. 6 servo outputs. Standard servo PWM connections. Ground (black wire) is at the border (left) of the module.

5. PPM1. The left pin is GND, the middle one 5V. Use this to power your RC-receiver. When the RC-receiver tabpage is in PPM mode, the right pin will need to receive the PPM pulse train. When the RC-receiver tabpage is in PWM mode, the right pin will be connected to input channel 1.

6. PPM2. Each one of the 5 pins is an input channel from your RC-receiver.

7. ICSP header. Used to program the dsPIC microcontroller. If you have an ICD2/3 or PicKit programmer, this is where you should connect it to.

8. I2C connector. Pins from top to bottom:

  • GND
  • VCC (5v or 3.3v, see solder jumper SJ1)
  • SDA
  • SDL

9. SPI connector. From top to bottom:

  • SS
  • MISO
  • MOSI
  • SCK
  • 5V or 3V3
  • GND


10. Serial connector. Used for configuration and telemetry output. The layout is adapted to standard FTDI cables. Pins from top to bottom:

  • Not used
  • Tx (serial data output), level = 3.3v
  • Rx (serial data input), level = 3.3vbut 5v is also OK
  • 5v
  • Not used
  • GND

11. EM-406 GPS connector. Used for GPS modules with such a header. Tx level is 3.3v, but Vcc can be configured as 3.3v or 5v using solder jumper SJ5

12. EB-85 GPS connector. Used to add a connector for the EB-85 GPS unit.

13. GPS connector. Pins from top to bottom:

  • Tx (GPS input)
  • Rx (GPS output)
  • Gnd
  • 3.3v

IC's

14. IDG-500. Two-axis gyroscope. Range is +-500°/s. Datasheet

15. ADXL-335. Tri-axis accelerometer. Datasheet

16. ISZ-500. Z-axis gyroscope. Range is +-500°/s. Datasheet

17. SCP1000. Pressure and temperature sensor. Connected using SPI. Datasheet

18. AT45DB081D Dataflash. 1MB or persistent memory used for configuration, navigation commands and datalogging. Datasheet

19. Push button. No functional use yet.

20. LEDs. LED1 blinks if the module is working correctly. LED2 shows the status of the GPS:

  • Off = no GPS module found
  • On = GPS module found, acquiring lock
  • Blinking = GPS lock stable enough for flight.

21. dsPic33FJ256MC710. The microcontroller that powers the gluonpilot! 256kB program memory. DSP core. 80MHz/40 MIPS. 16-bit. Datasheet

Solder jumpers

21. SJ3. Used to connected the servo's 5V to the gluonpilot's 5V. 22. SJ2. Used to connected the servo's 5V to the gluonpilot's 5V. 23. SJ5. Used to determine the voltage of optional connector EM-406. 24. SJ1. Used to determine the voltage available at the I2C and SPI connector. Short the middle pad with the top one for 5v, and with the lower one for 3.3v.


Powering the module

The gluonpilot module should be powered with 5V. This can be done at every connector connected to the 5v bus.

The most simple solution is to short SJ3 and SJ2, and everything is powered using the ESC's 5v (in case you are using a brushless or brushed ESC). The solution flies succesfully on my Funjet plane.

A more advanced power schema is the leave SJ3 and SJ2 open, use the separate clean 5v power supply (from a switched voltage regulator) to power the gluonpilot module, and another power source (e.g. you brushless ESC's 5v) to power the (noisy) servo's. This solution is used by my OSD solution.


Schematic

Download here


The schematic for the extension board can be downloaded here.

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