SUMO/prepare electronics
What you need
| Qty | Manufacturer part number |
Description | Manufacturer | Digikey part number |
Other distributor | ||||
|---|---|---|---|---|---|---|---|---|---|
| Autopilot | |||||||||
| 1 | Umarim Lite v2 | Autopilot | Paparazzi | ||||||
| 1 | BEC cable female | Autopilot power supply | |||||||
| 1 | BOB-09966 | Breakout Board for USB Mini-B | Sparkfun | Sparkfun BOB-09966 | |||||
| Modem | |||||||||
| 1 | (1P)XBP24-PKC-001-UA | Zigbee / 802.15.4 Module 2.4GHz XBee | Digi | XBP24-PKC-001-UA-ND | Mouser 888-XBP24-PKC-001-UA | ||||
| 1 | XBP24-AWI-001 | Zigbee / 802.15.4 Module 2.4GHz XBee | Digi | XBP24-AWI-001-ND | Mouser 888-XBP24-AWI-001 | ||||
| 1 | WRL-11373 | XBee Explorer Regulated board | Sparkfun | Sparkfun WRL-11373 | |||||
| GPS | |||||||||
| 1 | #387000004 (31135) | NEO-6M GPS Module | Hobbyking | Navilock NL-652ETTL | |||||
| Sensors | |||||||||
| 1 | SHT75 | Humidity Sensor | Sensirion | Farnell #1590514 | |||||
| 1 | SHT75 adapter | SHT75 breakout board | Paparazzi | ||||||
| 1 | MLX90614 | Infrared Thermometer | Melexis | Sparkfun SEN-09570 FutureElectronics MLX90614ESF-BAA-000-TU | |||||
| 1 | MLX90614 adapter | MLX90614 breakout board | Paparazzi | paparazzi-hardware misc/mlx90614_small | |||||
| 1 | ETS airspeed | Eagletree airspeed v3 | Eagletree | ||||||
| 1 | PT1000 M222 | PT1000 M222 temperature sensor | Heraeus | Conrad #172041 | |||||
| 1 | TEMOD-I2C-R1 | PT1000 converter board | Hygrosens | Conrad #502001 | |||||
| 1 | Multi I2C | Multi adapter Board | Paparazzi | paparazzi-hardware misc/servo_i2c_multi | |||||
| Sensors (optional version) | |||||||||
| 1 | BOB-08745 | Logic Level Converter | Sparkfun | Sparkfun BOB-08745 | |||||
| 1 | MS5611 | Barometric pressure sensor | Meas Spec | CSG #96 Drotek #44 | |||||
| Logger | |||||||||
| 1 | TWOG v1.0 | Logger | Paparazzi | ||||||
| 1 | BOB-09966 | Breakout Board for USB Mini-B | Sparkfun | Sparkfun BOB-09966 | |||||
| 1 | BOB-00544 | Board for microSD Transflash | Sparkfun | Sparkfun BOB-00544 | |||||
| Shrink tube (shrunken / not shrunken) | |||||||||
| 1 | PVC | 13mm / 20mm | Muldental Elektronik 64115 | ||||||
| 1 | PVC | 24mm / 37mm | Muldental Elektronik 64246 | ||||||
| 1 | PVC | 29mm / 45mm | Muldental Elektronik 64347 | ||||||
| 1 | PVC | 31mm / 51mm | Muldental Elektronik 64446 | ||||||
Shopping list
Mounting
Use high quality cable, PVC cable gets very stiff in cold temperatures. All parts have to be put into shrink tube to isolate it from any conductive or electrostatic plastic. Some pictures below do not show this tube for better visibility.
Autopilot
Solder the BEC to the Umarim. Cover the Umarim in shrink tube. Cut free the Molex connector openings. See the Umarim page for detailed info on the pinout.
| Umarim Supply (J15) pin | Umarim Supply | BEC male |
| 1 | VBAT | + |
| 2 | GND | |
| Cable length 9cm | ||
| Shrink tube 24mm / 37mm | ||
Solder the cables to the USB breakout board, plug cables in 4-pin Molex connector. Secure cables on USB with hot glue. Cover the USB breakout board in shrink tube.
| Umarim USB (J8) pin | Umarim USB | USB mini breakout |
| 1 | GND | GND |
| 2 | USB+ | D+ |
| 3 | USB- | D- |
| 4 | USB_VBUS | VCC |
| Molex 4pin | solder | |
| Cable length 21cm | ||
| Shrink tube 24mm / 37mm | ||
The RC receiver is connected to the autopilot through a standard servo cable connected to a 3-pin Molex connector. The signal wire is marked on the robbe receivers (see pictures).
| Umarim RC (J7) pin | Umarim RC | Servo cable color |
| 1 | GND | black/brown |
| 2 | 5V | red |
| 3 | PPM in | orange/yellow/white |
| Molex 3pin | solder | |
| Cable length 41cm | ||
GPS
Connect the u-blox type GPS receiver to the UART0 of the Umarim. Put the GPS in shrink tube. Attach any HF cable with tape. Secure GPS connector with hot glue if needed.
| Umarim UART0 (J9) pin | Umarim UART0 | GPS receiver | HK NEO-6M pin |
| 1 | GND | GND | 1 |
| 2 | 5V | 5V | 4 |
| 3 | |||
| 4 | RX0 | TX | 2 |
| 5 | TX0 | RX | 3 |
| Molex 5pin | Molex 4pin | ||
| Cable length 18cm | |||
| Shrink tube 31mm / 51mm | |||
Modem
Solder the cables to the XBee explorer board, plug cables in 5-pin Molex connector. Secure cables on explorer board with hot glue. Plug XBee modem into explorer board and secure with shrink tube.
Recent Sparkfun boards (v14) are equipped with 3.3V to 5V converters. Although the Umarim/LPC2148 should be able to handle 5V it is safe to not use the converters. Remove R5, R6, R7, R8, Q1, and Q2 from the XBee explorer regulated breakout board. Bridge OUT-DOUT and IN-DIN within the transistor footprint.
| Umarim UART1 (J10) pin | Umarim UART1 | XBee Explorer Regulated |
| 1 | GND | GND |
| 2 | 5V | 5V |
| 3 | ||
| 4 | RX1 | DOUT |
| 5 | TX1 | DIN |
| Molex 5pin | solder | |
| Cable length 10cm | ||
| Shrink tube 29mm / 45mm | ||
Solder a second wire (not shown in picture) from the XBee to the TWOG so that the data sent by the Umarim can be logged. That means that two wires are to be connected at the XBee DIN pin.
| TWOG Download/GPS (J7) pin | TWOG Download/GPS | XBee Explorer Regulated |
| 1 | ||
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 | ||
| 7 | RXD0 | DIN |
| Molex 7pin | solder | |
| Cable length 10cm | ||
SHT75 humidity sensor
Use SHT75 adapter board from Paparazzi hardware repository. Solder parts, secure sensor with hot glue to adapter board on the bottom side (not shown in picture).
| Umarim AUX (J14) pin | Umarim AUX | SHT75 | SHT75 pin | SHT75 adapter pin |
| 1 | GND | GND | (3) | 1 |
| 2 | ||||
| 3 | +3.3V | VDD | (2) | 2 |
| 4 | AUX1 (P0.13) | DATA | (4) | 3 |
| 5 | AUX2 (P0.15) | SCK | (1) | 4 |
| 6 | ||||
| 7 | ||||
| Molex 7pin | Molex 4pin | |||
| Cable length 17cm | ||||
| no shrink tube | ||||
MLX90614 infrared thermometer
Use MLX90614 adapter board from Paparazzi hardware repository. Solder parts, take care of sensor polarity. The I2C address of the MLX90614 needs to be programmed once before it can be used. Connect it as the only sensor to I2C and flash/run it with the IR_MLX_ONE_TIME_CONFIG option set (currently available in the master and campaign2013 branch). See Module/Melexis_MLX90614.
| Multi board I2C pin | Multi board I2C | MLX90614 | MLX90614 adapter pin | |
| 1 | GND | Vss | 1 | |
| 2 | ||||
| 3 | +3.3V | Vdd | 3 | |
| 4 | SDA | SDA | 4 | |
| 5 | SCL | SCL | 5 | |
| Molex 5pin | Molex 5pin | |||
| Cable length 9cm | ||||
| Shrink tube 24mm / 37mm | ||||
Eagletree Airspeed v3 Sensor
Extend the sensor cable. Cut off the four outstanding pins.
| Multi board I2C pin | Multi board I2C | ETS Airspeed wire colour |
| 1 | GND | white |
| 2 | +5V | red |
| 3 | ||
| 4 | SDA | yellow |
| 5 | SCL | brown |
| Molex 5pin | solder | |
| Cable length 40cm | ||
| keep original shrink tube | ||
PT1000 temperature sensor
Solder the PT1000 sensor (little blue on the picture) to the two correct pads at the edge of the TEMOD-I2C-R1 board, where the pin plugs are. The pads on both side are not connected through. It has to be soldered to the side not carrying the chip. Remove pin header from TEMOD board. Solder 4pin cable to TEMOD, it will be connected to the Umarim through the multi_i2c board below. Fix cables with hot glue. Put some hot glue on the top of teh board, just behind the PT1000. Seal the board with shrink tube.
Caution: The connection is not 1:1
| Multi board I2C_5V pin | Multi board I2C_5V | TEMOD-I2C-R1 | TEMOD-I2C-R1 pin | |
| 1 | GND | GND | 2 | |
| 2 | +5V | Vdd | 1 | |
| 3 | SDA_5V | SDA | 3 | |
| 4 | SCL_5V | SCL | 4 | |
| Molex 4pin | solder | |||
| Cable length 18cm | ||||
| Shrink tube 13mm / 20mm | ||||
Multi Board
Use the multi board from the Paparazzi hardware repository to have multiple I2C connections, a MS5611 barometric pressure sensor, a 3.3V to 5V level shifter and servo JR connectors for BEC supply through the motor controller. Drill/burn holes into the shrink tube at the hole locations to attach the board with screws later on.
Connection between Multi Board I2C and Umarim I2C0.
| Umarim I2C0 pin | I2C | Multi board I2C pin |
| 1 | GND | 1 |
| 2 | +5V | 2 |
| 3 | +3.3V | 3 |
| 4 | SDA | 4 |
| 5 | SCL | 5 |
| Molex 5pin | Molex 5pin | |
| Cable length 9cm | ||
| Shrink tube 24mm / 37mm | ||
Connection between Multi Board and Umarim for the servo signals.
| Multi board Servo pin | Multi board Servo | Umarim Servo |
| 1 | GND | GND_SRV5 |
| 2 | ||
| 3 | ||
| 4 | S2 | SRV2 |
| 5 | S3 | SRV3 |
| 6 | S4 | SRV4 |
| 7 | S5 | SRV5 |
| Cable length 7.5cm, 7.5cm, 8cm, 8.5cm, 9cm | ||
The TEMOD/PT1000 temperature sensor gets connected through the 5V I2C connector.
| Multi I2C_5V pin | Multi I2C_5V |
| 1 | GND |
| 2 | +5V |
| 3 | SDA |
| 4 | SCL |
Logger
The Umarim autopilot and the TWOG logger communicate through a bi-directional SPI connection. See the TWOG page for detailed info on the logger pinout.
| Umarim SPI1 pin | Umarim SPI1 | TWOG | TWOG conn. | TWOG name | TWOG pin |
| 1 | |||||
| 2 | |||||
| 3 | SSEL1 | SSEL0 | USB | BUTTON | 6 |
| 4 | MOSI1 | MOSI0 | PPM | PPM_IN | 3 |
| 5 | MISO1 | MISO0 | PPM | SERV_CLK | 5 |
| 6 | |||||
| 7 | SCK1 | SCK0 | ADC1 | ADC_3 | 5 |
| Molex 7pin | various Molex | ||||
| Cable length 6cm | |||||
The TWOG can be supplied through its original power supply connector or through 5V from the Umarim if the switching supply board is removed from the TWOG:
| Umarim SRV0 pin | Umarim SRV0 | TWOG ADC1 | TWOG ADC1 pin |
| 1 | GND | GND | 1 |
| 2 | +5V | +5V | 2 |
| 3 | |||
| Molex 3pin | Molex 5pin | ||
| Cable length 6cm | |||
Solder the cables to the USB breakout board for the TWOG logger, plug cables in 8-pin Molex connector. Secure cables on USB with hot glue. Cover the USB breakout board in shrink tube.
| TWOG USB (J9) pin | TWOG USB | USB mini breakout |
| 1 | GND | GND |
| 2 | ||
| 3 | USB+ | D+ |
| 4 | USB- | D- |
| 5 | USB_VBUS | VCC |
| 5 | ||
| 6 | ||
| 7 | ||
| 8 | ||
| Molex 8pin | solder | |
| Cable length 9cm | ||
| Shrink tube 24mm / 37mm | ||
The micro SD card adapter is connected to the TWOGs SPI connector. Wrap the board in shrink tube so that the micro SD card can be plugged/unplugged.
| TWOG SPI pin | TWOG SPI | microSD card board | microSD board pin |
| 1 | GND | GND | 5 |
| 2 | +3.3V | VCC | 3 |
| 3 | SSEL | CS | 1 |
| 4 | MOSI | DI | 2 |
| 5 | MISO | DO | 6 |
| 6 | |||
| 7 | SCK | SCK | 4 |
| Molex 7pin | solder | ||
| Cable length 6cm | |||
| Shrink tube 24mm / 37mm | |||