NavGo v3
Revision as of 10:49, 12 July 2012 by Michel (talk | contribs) (→Example of Airborne Equipment Electrical Connections)
Hardware Revision History
| Version # | Release Date | Release Notes |
|---|---|---|
| v3 | 07/2012 | Minor PCB modifications |
| v2 | 11/2011 | Barometer redesign |
| v1 | 08/2011 | Initial release of NavGo |
Features
- NXP LPC2148 MCU based
- 1 x Triple axis Digital Gyroscope (Invensense ITG-3200)
- 1 x Triple axis Digital Accelerometer (Analog Devices ADXL345)
- 1 x Triple axis Magnetometer (Honeywell HMC5883L)
- 1 x Digital Baro-altimeter (Freescale MPXA6115 pressure sensor + Microchip MCP3550-60 22bits ADC)
- 1 x R/C receiver PPM frame input
- 2 x UART (TTL 3.3V, 5V tolerant)
- 2 x I2C bus
- 1 x SPI bus
- 1 x USB (client)
- 2 x General Purpose I/O or Analog input channels (0V - 3.3V)
- 5v / 1.5A switching power supply (input voltage range 5.5V min → 16.0v max)
- 3.3v / 1A linear regulator
- 4 x status LEDs
- ?? grams (?,? oz)
- 35 x 35mm (1.38" x 1.38")
- 4 layers PCB design
NavGo v3 3D bottom view
NavGo v3 3D top view
- NavGo v3 top side.png
NavGo v3 top side
- NavGo v3 bottom side.png
NavGo v3 bottom side
Pinout
Pins Name and Type are specified with respect to the Autopilot Board
Schematic
Example of Airborne Equipment Electrical Connections
PCB
Gerber & Drill Files
PCB design Eurocircuits 6-C class compliant:
Download NavGo v3 gerber & drill files (zip)
RS274X, units = Inches, format = 2:5
- NavGo_v3_SILKSCREEN_TOP.GBR (Top Component Print Layer)
- NavGo_v3_SOLDERMASK_TOP.GBR (Top Solder Mask)
- NavGo_v3_SIGNAL_TOP.GBR (Top Copper Layer)
- NavGo_v3_INTERNAL_PLANE_1.GBR (Internal Copper Layer GND)
- NavGo_v3_INTERNAL_PLANE_2.GBR (Internal Copper Layer +3.3V)
- NavGo_v3_SIGNAL_BOTTOM.GBR (Bottom Copper Layer)
- NavGo_v3_SOLDERMASK_BOTTOM.GBR (Bottom Solder Mask)
- NavGo_v3_OUTLINE.GBR (Board Outline)
- NavGo_v3_DRILL.GBR (NC XY coordinates & Drill tools sizes)
Assembly
Components Layout
NavGo v3 bottom components Layout
NavGo v3 top components Layout
NavGo v3 bottom components detail
NavGo v3 top components detail
Bill Of Material
Download NavGo v3 Bill of Material (zipped .xls file)
| Qty | Manufacturer part number |
Part name / value | Designator | Description | Manufacturer | Package type |
Digikey part number |
Other distributor | |
|---|---|---|---|---|---|---|---|---|---|
| Resistors | |||||||||
| 2 | ERJ-3EKF33R0V | 33R | R19,R20 | 33.0 Ohm 1/10W 1% | Panasonic - ECG | 0603 | P33.0HCT-ND | ||
| 1 | ERJ-3EKF1000V | 100R | R12 | 100 Ohm 1/10W 1% | Panasonic - ECG | 0603 | P100HCT-ND | ||
| 4 | ERJ-3EKF3900V | 390R | R6 to R9 | 390 Ohm 1/10W 1% | Panasonic - ECG | 0603 | P390HCT-ND | ||
| 1 | ERJ-3EKF1501V | 1.5K | R18 | 1.50K Ohm 1/10W 1% | Panasonic - ECG | 0603 | P1.50KHCT-ND | ||
| 6 | ERJ-3EKF1801V | 1.8K | R10,R11,R14 to R17 | 1.80K Ohm 1/10W 1% | Panasonic - ECG | 0603 | P1.80KHCT-ND | ||
| 3 | ERJ-3EKF3301V | 3.3K | R3 to R5 | 3.30K Ohm 1/10W 1% | Panasonic - ECG | 0603 | P3.30KHCT-ND | ||
| 2 | ERJ-3EKF1002V | 10K | R13,R21 | 10.0K Ohm 1/10W 1% | Panasonic - ECG | 0603 | P10.0KHCT-ND | ||
| 1 | ERJ-3EKF1502V | 15k | R2 | 15.0K Ohm 1/10W 1% | Panasonic - ECG | 0603 | P15.0KHCT-ND | ||
| 1 | ERJ-3EKF4702V | 47k | R1 | 47.0K Ohm 1/10W 1% | Panasonic - ECG | 0603 | P47.0KHCT-ND |
| |
| Capacitors | |||||||||
| 2 | C1608C0G1H180J | 18p | C28,C29 | Ceramic 18pF 50V COG 5% | TDK Corp. | 0603 | 445-1272-1-ND | ||
| 1 | C1608C0G1H470J | 47p | C13 | Ceramic 47pF 50V COG 5% | TDK Corp. | 0603 | 445-1277-1-ND | ||
| 1 | C1608X7R1H222K | 2.2n/50V | C27 | Ceramic 2.2nF 50V X7R 10% | TDK Corp. | 0603 | 445-1309-1-ND | ||
| 2 | C1608C0G1H103J | 10n | C3,C26 | Ceramic 10nF 50V COG 5% | TDK Corp. | 0603 | 445-7404-1-ND | ||
| 16 | CC0603KRX7R8BB104 | 100n | C5 to C12,C16 to C23 | Ceramic 0.1uF 25V X7R 10% | Yageo | 0603 | 311-1341-1-ND | ||
| 1 | C1608X7R1E224K | 220n | C30 | Ceramic 0.22uF 25V X7R 10% | TDK Corp. | 0603 | 445-5191-1-ND | ||
| 3 | C1608X5R1E105K | 1u/25V/X5R | C1,C2,C25 | Ceramic 1.0uF 25V X5R 10% | TDK Corp. | 0603 | 445-5146-1-ND | ||
| 1 | C1608X5R0J475M/0.80 | 4.7u | C31 | Ceramic 4.7uF 6.3V X5R 20% | TDK Corp. | 0603 | 445-1417-1-ND | ||
| 1 | C1608X5R0J106M | 10u/6.3V | C4 | Ceramic 10uF 6.3V X5R 20% | TDK Corp. | 0603 | 445-4112-1-ND | ||
| 2 | TAJA336K006RNJ | 33u/6.3v | C15,C24 | Tantalum 33uF 6.3V 10% | AVX Corp. | A case (EIA 3216-18) | 478-1666-1-ND | ||
| 1 | TR3D107K020C0080 | 100u/20V | C14 | Tantalum 100uF 20V 10% | Vishay/Sprague | D case (EIA 7343-31) | 718-1774-1-ND |
| |
| Inductors | |||||||||
| 1 | B82462G4682M | 6.8u | L1 | 1.65A Power Inductor | Epcos Inc. | 6.0x6.0 mm | 495-1999-1-ND |
| |
| Semiconductors | |||||||||
| 1 | LP2985-50DBVR | LP2985-50 | IC1 | 5v/150mA low-noise low-dropout regulator | Texas Instruments | SOT23-5 | 296-20717-1-ND | ||
| 1 | MPXH6115AC6U | MPXH6115AC6U | IC2 | Integrated Silicon Pressure Sensor | Freescale Semicond. | 1317A-03 | MPXH6115AC6U-ND | ||
| 1 | MCP3550-60E/MS | MCP3550-60-E-MS | IC3 | Low-Power 22-Bit Delta-Sigma ADC | Microchip Technology | MSOP8 | MCP3550-60E/MS-ND | ||
| 1 | SN74LVC2T45DCU | SN74LVC2T45DCU | IC4 | Dual-Bit Dual-Supply Bus Transceiver | Texas Instruments | VSSOP8 | 296-17014-1-ND | ||
| 1 | TPS62112RSAT | TPS62112 | IC5 | 17V, 1.5-A, Synchronous Step-Down Converter | Texas Instruments | QFN16 | 296-19717-1-ND | ||
| 1 | LM3940IMP-3.3/NOPB | LM3940IMP-3.3 | IC6 | 1A low dropout regulator for 5V to 3.3V conversion | National Semicond. | SOT223 | LM3940IMP-3.3CT-ND | ||
| 1 | ADXL345BCCZ-RL | ADXL345 | IC7 | 3-Axis 16 g Digital Accelerometer | Analog Devices Inc. | LGA14 | ADXL345BCCZ-RLCT-ND | ||
| 1 | LPC2148FBD64,151 | LPC2148FBD64 | IC8 | Single-chip ARM7 32-bit microcontroller | NXP Semicond. | LQFP64 | 568-1765-ND | ||
| 1 | ITG-3200 | ITG-3200 | IC9 | 3-Axis Digital-Output Gyroscope | InvenSense | QFN24 | N/A | Farnell(#1858279),Sparkfun(#SEN-09793) | |
| 1 | HMC5883L | HMC5883L | IC10 | Three-Axis Digital Compass | Honeywell | LCC16 | 342-1082-1-ND | ||
| 1 | APT1608SURCK | KP-1608SURC | LED1 | SMD Chip Red LED Lamp | Kingbright Corp. | 0603 | 754-1123-1-ND | ||
| 1 | APT1608SECK | KP-1608SEC | LED2 | SMD Chip Orange LED Lamp | Kingbright Corp. | 0603 | 754-1120-1-ND | ||
| 1 | APT1608MGC | KP-1608MGC | LED3 | SMD Chip Green LED Lamp | Kingbright Corp. | 0603 | 754-1118-1-ND | ||
| 1 | APT1608SYCK | KP-1608SYC | LED4 | SMD Chip Yellow LED Lamp | Kingbright Corp. | 0603 | 754-1124-1-ND | ||
| 1 | DTA143ZE-TP | DTA143ZE | T1 | PNP Pre-Biased Small Signal Transistor | Micro Commercial Co. | SOT523 | DTA143ZE-TPMSCT-ND |
| |
| Connectors | |||||||||
| 1 | 53048-0310 | AUX1 | J8 | 1.25mm Pitch Wire-to-Board 3pin Header | Molex Inc. | - | WM1743-ND | ||
| 2 | 53048-0410 | RC,AUX2 | J2,J9 | 1.25mm Pitch Wire-to-Board 4pin Header | Molex Inc. | - | WM1744-ND | ||
| 3 | 53048-0510 | UART0,UART1,I2C1 | J4,J5,J7 | 1.25mm Pitch Wire-to-Board 5pin Header | Molex Inc. | - | WM1745-ND | ||
| 1 | 53048-0610 | I2C0 | J6 | 1.25mm Pitch Wire-to-Board 6pin Header | Molex Inc. | - | WM1746-ND | ||
| 1 | 53048-0710 | SPI1 | J3 | 1.25mm Pitch Wire-to-Board 7pin Header | Molex Inc. | - | WM1747-ND | ||
| 1 | 47346-0001 | USB | J10 | Micro-USB B receptacle | Molex Inc. | - | WM17141CT-ND |
| |
| Other | |||||||||
| 1 | 7M-12.000MAAJ | 7M-12.000 | Q1 | Crystal 12.000MHZ 18pF | TXC Corp. | 3.2x2.5mm/4pin | 887-1121-1-ND |
| |
PCB and assembled boards suppliers
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Mechanical Dimensions
Paparazzi USB Bootloader Upload
Required components
- 1 x FTDI TTL-232R-3V3 (Digikey #768-1015-ND) USB to UART converter cable with +3.3V TTL level UART signals. (see Note 1)
- 2 x 4-pin connector housing Molex Picoblade 51021-0400 (Digikey #WM1722-ND)
- 5 x crimp terminal female Molex Picoblade 50058-8000 (Digikey #WM1775CT-ND)
- 1 x 6-pin 0.1" pitch single in line male connector header Samtec TSW-132-07-TS (Digikey #SAM1035-32-ND) or equivalent
- 28-32AWG wiring cable
- Note1: It is advised to use FTDI USB-serial converter, as serial FTDI chips are by default working well in Linux.
- The Paparazzi ground station software is configured to look for modems on FTDI ports by default.
- This harness can also serve as a modem interface (after it's use in Bootloader uploading) if you plug it on Umarim's UART1 connector
Connection Diagram
Make up a wiring harness similar to the following
Boot Sequence
