XV-11 PCB Information
Information on the Main PCB, part lists and data on headers.
| Neato XV-11 BOM and Parts identification |
|||
|---|---|---|---|
| Ref. Desg. |
Manufacturer |
Part Number |
Description |
| U1 |
Allegro |
A3950SEUTR-T |
DMOS Full-Bridge Motor Driver |
| U5 |
Allegro |
A3950SEUTR-T |
DMOS Full-Bridge Motor Driver |
| U16 |
ST |
LIS302DL |
3-axis - ± 2g/± 8g smart digital output “piccolo” accelerometer |
| U17 |
Fairchild |
MM74HC4051MTC |
8-Channel Analog Multiplexer |
| U18 |
Fairchild |
MM74HC4051MTC |
8-Channel Analog Multiplexer |
| U26 |
Allegro |
A4490EESTR-T |
Triple Output Step-Down Switching Regulator |
| U29 |
ATMEL |
AT91SAM9XE128-QU |
AT91 ARM Thumb Microcontrollers PQFP208 |
| U32 |
Winbond |
W988D6FB |
SDRAM (typeno varies) - 256Mb (32MByte) Mobile LPSDR |
| U34 |
ZETEX |
ZXMHC3A01T8 |
COMPLEMENTARY 30V ENHANCEMENT MODE MOSFET H-BRIDGE |
| U36 |
National Semi |
NC7SZ14 |
Tiny UHS Inverter with Schmitt Trigger Input |
| U39 |
|||
| U44 |
National Semi |
NC7SZ14 |
Tiny UHS Inverter with Schmitt Trigger Input |
| U45 |
National Semi |
NC7SZ14 |
Tiny UHS Inverter with Schmitt Trigger Input |
| U35 |
ST |
NAND128W3A2BN6 |
16MByte small-page NAND flash (on bottom side of PCB) |
| Ref. Desg. |
Description |
|---|---|
| J1 |
Charging Jack |
| J2 |
UI Board (LCD/Buttons) |
| J3 |
Direct connection to the ERASE line of the AT91 processor!! Shorting this jumper and rebooting the XV-11 will result in a complete loss of programming. No known recovery method at this time. |
| SW1 |
Switch input used to hard reboot the processor. Probably used in conjunction with J3 for development purposes. |
| P1 |
Battery pack thermistor input (Thermistor measures ~10k at 70 degrees Fahrenheit on battery) For battery locations, viewing XV-11 from above with the laser at the bottom and bumpers up top: Wire Color\Pins Orange,Blue\1,2 = Left Battery Yellow,Green\3,4 = Right Battery |
| P2 |
Main power input |
| P3 |
Header for Bluetooth module (BlueSMiRF) |
| P4 |
Unknown. Leads to SPI of the AT91 processor: Probably MMC/SD connection. |
| P5 |
Bumper switch inputs x4 For button locations, viewing XV-11 from above with the laser at the bottom and bumpers up top: Wire Color\Pins Blue\1,2 = Left Side Yellow\3,4 Top Left Purple\5,6 Top Right Orange\7,8 Right Side |
| P6 |
Header used to communicate with the AT91 via serial connection. P6:1 Unused (square pad), P6:2 AT91_RXD, P6:3 AT91_TXD, P6:4 Ground |
| P8 |
LIDAR Motor connector |
| P9 |
Brush motor Input/Output Pins 1,2 = Brush motor power 3,4,5 = Input from encoder |
| P10 |
JTAG. Bottom row: VDDIO (square pin), TRST, TDI, TMS, TCK. Top row: GND, GND, SRST, TDO, RTCK. The JTAG-port unfortunately is software-disabled for debugging the ARM processor core. |
| P11 |
Viewing XV-11 from above with the laser at the bottom and bumpers up top: 1,2,3 = Top Right Side Wall Distance Sensor (Sharp 0A51SK F 0X) |
| P12 |
LIDAR power/serial connection |
| P13 |
Magnetic strip sensors and floor distance sensors (detecting edge before falling down stairs) For sensor locations, viewing XV-11 from above with the laser at the bottom and bumpers up top: Pins 1,2,3 = Top Left Distance Sensor (Sharp 0A51SK F 0X) 4,5,6 = Top Left Hall Effect Sensor (Allegro 21E) 7,8,9 = Top Right Distance Sensor (Sharp 0A51SK F 0X) 10,11,12 = Top Right Hall Effect Sensor (Allegro 21E) |
| P14 |
Speaker |
| P16 |
Dustbin installed/removed input (Soft rubber button under dustbin) |
| P18 |
Charging input for wall docking charger |
| P19 |
Vacuum motor |
| P20 |
USB Connection to ATMEL processor |
| P22 |
Right Wheel Pins 1,2 = motor power 3,4,5 = Input from encoder |
| P23 |
Left Wheel Pins 1,2 = motor power 3,4,5 = Input from encoder |
| P24 |
Temperature input from brush motor, taped to motor (Measures ~10k at 70 degrees Fahrenheit) |