Umarim Lite v2

Autopilots
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== Hardware Revision History ==
Version #	Release Date	Release Notes
v2 	07/2012 	Minor PCB modifications
v1 	03/2012 	Initial release of Umarim Lite
== Features ==
* NXP LPC2148 MCU based
* 1 x Triple axis Digital Gyroscope (Invensense ITG-3200)
* 1 x Triple axis Digital Accelerometer (Analog Devices ADXL345)
* 6 x Servo PWM outputs
* 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)
* 4 x General Purpose I/O or Analog input channels (0V - 3.3V)
* 5v / 1.5A switching power supply (input voltage range 5.5V min → 17.0v max)
* 3.3v / 1A linear regulator
* 2 x status LEDs
* 8 grams (0,3 oz)
* 53 x 25mm (2.1" x 0.98")
* 4 layers PCB design / single side SMD components
Image:UmarimLite_v2_3D_bottom.png|Umarim Lite v2 3D bottom view
Image:UmarimLite_v2_3D_top.png|Umarim Lite v2 3D top view
Image:UmarimLite_v2_2D_top.png|Umarim Lite v2 top side
Image:UmarimLite_v2_2D_bottom.png|Umarim Lite v2 bottom side
== Pinout ==
Pins Name and Type are specified with respect to the Autopilot Board
SRV0/1/2/3/4/5
Pin #	Name	Type	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+5V 	PWR 	5V Rail from autopilot	Orange
3 	SRVx	OUT 	Servo signal (PWM) 	White
R/C
Pin #	Name 	Type	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+5v 	PWR 	5V Rail from autopilot 	Orange
3 	PPM_IN	IN 	PPM Stream from R/C Receiver (5V tolerant)	White
SPI1
Pin #	Name 	Type	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+3.3V	PWR 	3.3V Rail from autopilot 	Red
3 	SSEL1	IN 	SSP Slave Select. Selects the SSP interface as a slave (SSEL1) 	Brown
4 	MOSI1	I/O 	SPI1 Master Out Slave In. Data output from master / data input to slave	Grey
5 	MISO1	I/O 	SPI1 Master In Slave Out. Data input to master / data output from slave	Green
6 	DRDY1	IN 	External interrupt 0 input (EINT0) 	Purple
7 	SCK1 	I/O 	SPI1 Serial clock. Clock output from master or input to slave 	Yellow
AUX
Pin #	Name 	Type	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+5V 	PWR 	5V Rail from autopilot 	Orange
3 	+3.3V	PWR 	3.3V Rail from autopilot 	Red
4 	AUX1 	I/O 	General Purpose I/O #1 or ADC Input ADC_0 (lpc AD1.5)	
5 	AUX2 	I/O 	General Purpose I/O #2 or ADC Input ADC_1 (lpc AD1.4)	
6 	AUX3 	I/O 	General Purpose I/O #3 or ADC Input ADC_2 (lpc AD1.3)	
7 	AUX4 	I/O 	General Purpose I/O #4 or ADC Input ADC_3 (lpc AD1.2)	
UART0
Pin #	Name 	Type	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+5V 	PWR 	5V Rail from autopilot 	Orange
3 	+3.3V	PWR 	3.3V Rail from autopilot 	Red
4 	RXD0 	IN 	UART0 Serial Input (3.3V level, 5V Tolerant)	Green
5 	TXD0 	OUT 	UART0 Serial Output (3.3V level) 	Blue
UART1
Pin #	Name 	Type	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+5V 	PWR 	5V Rail from autopilot 	Orange
3 	+3.3V	PWR 	3.3V Rail from autopilot 	Red
4 	RXD1 	IN 	UART1 Serial Input (3.3V level, 5V Tolerant)	Green
5 	TXD1 	OUT 	UART1 Serial Output (3.3V level) 	Blue
I2C0
Pin #	Name 	Type 	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+5V 	PWR 	5V Rail from autopilot 	Orange
3 	+3.3V	PWR 	3.3V Rail from autopilot	Red
4 	SDA0 	Open DrainI/O	I2C0 bus Serial DAta 	Brown
5 	SCL0 	Open DrainI/O	I2C0 bus Serial CLock 	Blue
I2C1
Pin #	Name 	Type 	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	+5V 	PWR 	5V Rail from autopilot 	Orange
3 	+3.3V 	PWR 	3.3V Rail from autopilot 	Red
4 	SDA1BOOT	Open DrainI/O	I2C1 bus Serial DAtaIn-Circuit Serial Programming (ISP) enable (P0.14, +3.3v pullup) (Note)	Brown
5 	SCL1 	Open DrainI/O	I2C1 bus Serial CLock 	Blue
Note: Holding this pin low for at least 3mS after a RESET (or power up) instructs the controller to enter programming mode.
USB
Pin #	Name	Type	Description 	Color
1 	GND 	PWR 	common ground 	Black
2 	USB+	I/O 	USB bidirectional D+ line 	Green
3 	USB-	I/O 	USB bidirectional D- line 	White
4 	VBUS	IN 	Indicates the presence of USB bus power (P0.23) (5V level)	Orange
Note: MiniUSB and Molex USB connectors are in parallel, only one can be connected at a time.
== Schematic ==
== Examples of Airborne Equipment Electrical Connections ==
=== Small Aircraft Connection Diagram ===
=== Large Aircraft Connection Diagram ===
== PCB ==
=== Gerber & Drill Files ===
PCB design Eurocircuits 6-C class compliant:
Download Umarim v2 gerber & drill files (zip)
RS274X, units = Inches, format = 2:5
:*UmarimLite_v2_SILKSCREEN_TOP.GBR (Top Component Print Layer)
:*UmarimLite_v2_SOLDERMASK_TOP.GBR (Top Solder Mask)
:*UmarimLite_v2_SIGNAL_TOP.GBR (Top Copper Layer)
:*UmarimLite_v2_INTERNAL_PLANE_1.GBR (Internal Copper Layer GND)
:*UmarimLite_v2_INTERNAL_PLANE_2.GBR (Internal Copper Layer +3.3V)
:*UmarimLite_v2_SIGNAL_BOTTOM.GBR (Bottom Copper Layer)
:*UmarimLite_v2_SOLDERMASK_BOTTOM.GBR (Bottom Solder Mask)
:*UmarimLite_v2_OUTLINE.GBR (Board Outline)
:*UmarimLite_v2_DRILL.GBR (NC XY coordinates & Drill tools sizes)
== Assembly ==
===Components Layout===
Image:UmarimLite_v2_2D_bottom.png|Umarim Lite v2 bottom components Layout
Image:UmarimLite_v2_2D_top.png|Umarim Lite v2 top components Layout
Image:UmarimLite_v2_bottom_components.png|Umarim Lite v2 bottom components detail
Image:UmarimLite_v2_top_components.png|Umarim Lite v2 top components detail
=== Bill Of Material ===
Download Umarim Lite v2 Bill of Material (zipped .xls file)
Qty 	Manufacturerpart number	Part name / value	Designator 	Description 	Manufacturer 	Packagetype 	Digikeypart number 	Other distributor 	
Resistors 	Resistors 	Resistors 	Resistors 	Resistors 	Resistors 	Resistors 	Resistors 	Resistors 	
2 	ERJ-3EKF33R0V 	33R 	R1,R2 	33.0 Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P33.0HCT-ND 	 	
1 	ERJ-3EKF1000V 	100R 	R3 	100 Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P100HCT-ND 	 	
2 	ERJ-3EKF3900V 	390R 	R4,R5 	390 Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P390HCT-ND 	 	
2 	ERJ-3EKF1501V 	1.5K 	R6,R7 	1.50K Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P1.50KHCT-ND 	 	
1 	ERJ-3EKF1801V 	1.8K 	R8 	1.80K Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P1.80KHCT-ND 	 	
4 	ERJ-3EKF2201V 	2.2k 	R9 to R12 	2.20K Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P2.20KHCT-ND 	 	
1 	ERJ-3EKF3301V 	3.3K 	R13 	3.30K Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P3.30KHCT-ND 	 	
2 	ERJ-3EKF1002V 	10K 	R14,R15 	10.0K Ohm 1/10W 1% 	Panasonic - ECG 	0603 	P10.0KHCT-ND 	 	
Capacitors 	Capacitors 	Capacitors 	Capacitors 	Capacitors 	Capacitors 	Capacitors 	Capacitors 	Capacitors 	Capacitors
2 	C1608C0G1H180J 	18p 	C1,C2 	Ceramic 18pF 50V C0G 5% 	TDK Corp. 	0603 	445-1272-1-ND 	 	
1 	C1608X7R1H222K 	2.2n/50V 	C3 	Ceramic 2.2nF 50V X7R 10% 	TDK Corp. 	0603 	445-1309-1-ND 	 	
1 	C1608X7R1H103K 	10n 	C4 	Ceramic 10nF 50V X7R 10% 	TDK Corp. 	0603 	445-1311-1-ND 	 	
17 	CC0603KRX7R8BB104 	100n 	C5 to C21 	Ceramic 0.1uF 25V X7R 10% 	Yageo 	0603 	311-1341-1-ND 	 	
1 	C1608X5R1E105K 	1u/25V/X5R 	C22 	Ceramic 1.0uF 25V X5R10% 	TDK Corp. 	0603 	445-5146-1-ND 	 	
1 	C1608X5R0J106M 	10u/6.3V 	C23 	Ceramic 10uF 6.3V X5R 20% 	TDK Corp. 	0603 	445-4112-1-ND 	 	
2 	TAJA336K006RNJ 	33u/6.3v 	C24,C25 	Tantalum 33uF 6.3V 10% 	AVX Corp. 	A case (EIA 3216-18)	478-1666-1-ND 	 	
1 	TR3D107K020C0080 	100u/20V 	C26 	Tantalum 100uF 20V 10% 	Vishay/Sprague 	D case (EIA 7343-31)	718-1774-1-ND 	 	
Inductors 	Inductors 	Inductors 	Inductors 	Inductors 	Inductors 	Inductors 	Inductors 	Inductors 	Inductors
1 	B82462G4682M 	6.8u 	L1 	1.65A Power Inductor 	Epcos Inc. 	6.0x6.0 mm 	495-1999-1-ND 	 	
Semiconductors	Semiconductors 	Semiconductors 	Semiconductors	Semiconductors 	Semiconductors 	Semiconductors 	Semiconductors 	Semiconductors 	Semiconductors
1 	LPC2148FBD64,151 	LPC2148FBD64 	IC1 	Single-chip ARM7 32-bit microcontroller 	NXP Semicond. 	LQFP64 	568-1765-ND 	 	
1 	ITG-3200 	ITG-3200 	IC2 	3-Axis Digital-Output Gyroscope 	InvenSense 	QFN24 	N/A 	Farnell(#1858279),Sparkfun(#SEN-09793)	
1 	ADXL345BCCZ-RL 	ADXL345 	IC3 	3-Axis 16 g Digital Accelerometer 	Analog Devices Inc. 	LGA14 	ADXL345BCCZ-RLCT-ND	 	
1 	TPS62112RSAT 	TPS62112 	IC4 	17V, 1.5-A, Synchronous Step-Down Converter 	Texas Instruments 	QFN16 	296-19717-1-ND 	 	
1 	LM3940IMP-3.3/NOPB 	LM3940IMP-3.3 	IC5 	1A low dropout regulator for 5V to 3.3V conversion	National Semicond. 	SOT223 	LM3940IMP-3.3CT-ND 	 	
1 	CD4017BPWR 	4017 	IC6 	Decade Counter/Divider with 10 Decoded Outputs 	Texas Instruments 	TSSOP16 	296-14252-1-ND 	 	
1 	APT1608SURCK 	KP-1608SURC 	LED1 	SMD Chip Red LED Lamp 	Kingbright Corp. 	0603 	754-1123-1-ND 	 	
1 	APT1608MGC 	KP-1608MGC 	LED2 	SMD Chip Green LED Lamp 	Kingbright Corp. 	0603 	754-1118-1-ND 	 	
1 	DTA143ZE-TP 	DTA143ZE 	T1 	PNP Pre-Biased Small Signal Transistor 	Micro Commercial Co.	SOT523 	DTA143ZE-TPMSCT-ND 	 	
Connectors 	Connectors 	Connectors 	Connectors 	Connectors 	Connectors 	Connectors 	Connectors 	Connectors 	Connectors
7 	53047-0310 	SRV0 to 5, RC 	J1 to J7 	Picoblade 3 pins 1.25mm straight header 	Molex Inc. 	- 	WM1732-ND 	 	
1 	53047-0410 	USB 	J8 	Picoblade 4 pins 1.25mm straight header 	Molex Inc. 	- 	WM1733-ND 	 	
4 	53047-0510 	UART0-1,I2C0-1 	J9 to J12 	Picoblade 5 pins 1.25mm straight header 	Molex Inc. 	- 	WM1734-ND 	 	
2 	53047-0710 	SPI1,AUX 	J13,J14 	Picoblade 7 pins 1.25mm straight header 	Molex Inc. 	- 	WM1736-ND 	 	
1 	67503-1020 	USB_REC 	J16 	Mini USB Receptacle SMD 	Molex Inc. 	- 	WM5461CT-ND 	 	
Other 	Other 	Other 	Other 	Other 	Other 	Other 	Other 	Other 	Other
1 	CX5032GB12000H0PESZZ 	CX5032GB12000 	Q1 	CRYSTAL 12.0MHZ 12PF SMD 	AVX Corp. 	5.0x3.2mm 	478-4359-1-ND 	 	
== PCB and assembled boards suppliers ==
Check availability on Get Hardware page
== 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 ===
Category:Autopilots