Summer Project: Arduino Scouting Robot
Arduino Scouting Robot Part 1
* 12,9,5 volt power supply
recharge it with a 12-volt charger
keep power switch on to charge
* 2 DC motors
operate at 7.2V with a maximum current draw of 3 amps
* 2 Digital Servos
operate at 6V with a maximum current draw of ~1 amp each
the pwm wires are connected to the pwm pins on the arduino (pin 2 for pan and 3 for tilt)
* 8-amp DC-DC step down converter
input: 9v
output: 7.2v to feed the motors
The outputs are connected to the 10-amp motor driver (located on the underside
of the robot)
* 3-amp DC-DC step down converter
input: 9v
output: 6v to feed the servos
* 10-amp dual motor driver
input for logic side: 5v and GND (the GND is controlled by arduino pin 23)
and Four logic controllers (Two for direction and two for on/off)
input for motor power side: 7.2v and GND (GND is controlled by the Buz101s mosfet)
and Four motor wires (from two dc motors)
* arduino mega2560
input: 9v to dc jack or 5v to pin
* xbee from robot(wireless transceiver)
input: 5v (when mounted to usb apdater)
note: the 5v line from the xbee is needed for the other robot peripherals (LRF and Motor Driver) also
* xbee from laptop
input: usb
* 9DOF sensor
input: 5v
output: i2c data to arduino {SDA(white) SCL(green)}
* Laser Range Finder input: 5v
output: serial to arudino {TX1(white) and RX1(yellow)}
* Camera
input: 2 AA batteries
output: to SD card
snapshot control by shorting the cam wires
which is control by an 2n7000 mosfet switch (arduino pin30)
must ground the source lead of the mosfet
* Power mosfet Buz101s