BRAT

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Check out our BRAT!

About the Biped BRAT BRAT stands for Bipedal Robotic Articulating Transport. The robot is a 6 servo biped walker featuring three degrees of freedom (DOF) per leg. The robot can walk forward or backwards and turn in place left or right with variable speed. It can even do lots of Robo-One style acrobatic moves. Our combo kits include everything needed to make an operational robot, however the chassis and servos are available separately for those who want to use their own electronics. The Mechanics The robot is made exclusively from brushed, or black anodized aluminum servo brackets from our Servo Erector Set. It also includes an electronics carrier made from ultra-tough laser-cut Lexan. The Servos We are providing the walker with Hitec HS-422 servos. Due to the robot's light weight, these servos work well. Powering Options As with any walking robot, weight is a major concern. The best approach is to keep the weight to an absolute minimum. We recommend using the 6.0 Volt Ni-MH 1600mAh Battery Pack (BAT-03) and the Universal Smart Charger (USC-01). Controlling the Biped The robot is available in two basic configurations, Animatronic (tethered connection to a PC) or Autonomous (controlled by the onboard Basic Atom Pro processor). The autonomous version includes the Bot Board II and the Basic Atom Pro processor. We have several sample programs that allow the robot to roam without bumping into objects, get up by itself if it falls, and exhibit other behaviors such as boredom or surprise. We even have a "seek and destroy" tutorial showing how to make the robot locate, home in, and kick water bottles. There is also a template program that is easy to edit to add other sensors or behaviors. The PC version uses our SSC-32 and the Visual Sequencer to control the robots motion. It's a tethered configuration but can be made wireless with a wireless serial device such as the Sparkfun BlueSMiRF modem. We have 10 example sequences for the Visual Sequencer to get the robot going right away. Important! To keep costs down we are not providing printed Assembly Guides. They are provided online, so you will need to print them when you order the kits. By providing the Assembly Guides online we can provide more detailed and up to date information than the old hardcopy method allowed.	Stock BRAT kit.
	With camera (not available).
	With optional sensors.

Assembly Guides
& Tutorials

Image Gallery

Specifications

Biped BRAT Combo Kit (PS2 Control) (Brushed) Description - Remote control version with pre-written, modifiable code. This product includes everything you need to build and program the robot from a personal computer for remote control. Note, PS2 controller and batteries sold separately.
Part# [ BRATCC-BRU ] $297.04 USD

Biped BRAT Combo Kit (PS2 Control) (Black) Description - Remote control version with pre-written, modifiable code. This product includes everything you need to build and program the robot from a personal computer for remote control. Note, PS2 controller and batteries sold separately.
Part# [ BRATCC-BLK ] $297.04 USD

Biped BRAT Combo Kit (Autonomous) (Brushed) Description - Autonomous-behavior version with pre-written, modifiable code. This product includes everything you need to build and program the robot from a personal computer for autonomous behavior. Note, batteries sold separately.
Part# [ BRATCB-BRU ] $307.04 USD

Biped BRAT Combo Kit (Autonomous) (Black) Description - Autonomous-behavior version with pre-written, modifiable code. This product includes everything you need to build and program the robot from a personal computer for autonomous behavior. Note, batteries sold separately.
Part# [ BRATCB-BLK ] $307.04 USD

Biped BRAT Combo Kit for PC (serial port) (Brushed) Description - Serial port-based version with powerful PC software. This product includes everything you need to build and control the robot from a personal computer.
Part# [ BRATCA-BRU ] $287.09 USD

Biped BRAT Combo Kit for PC (serial port) (Black) Description - Serial port-based version with powerful PC software. This product includes everything you need to build and control the robot from a personal computer.
Part# [ BRATCA-BLK ] $287.09 USD

Biped BRAT (no electronics) (Brushed) Description - Robot chassis and HS-422 servos only; no electronics. The biped legs feature 3 degrees of freedom. This product includes everything you need to build a robot to control with your electronics.
Part# [ BRAT-BRU ] $197.24 USD

Biped BRAT (no electronics) (Black) Description - Robot chassis and HS-422 servos only; no electronics. The biped legs feature 3 degrees of freedom. This product includes everything you need to build a robot to control with your electronics.
Part# [ BRAT-BLK ] $197.24 USD

BRAT Servo Upgrade Pack - 485 Description - Upgrade to six 485 (83oz.in.) servos! Give your BRAT increased strength. Requires the purchase of a BRAT kit.
Part# [ SUP-05 ] $30.00 USD

USB-to-Serial Adapter Cable Description - FTDI USB-to-serial adapter cable. Drivers available here. This is the fastest and most stable USB-to-serial cable available. It's made by the same place that makes the FTDI chipset and has been proven to work well with all of our products.
Part# [ USB2S-01 ] $29.95 USD

BRAT Servo Upgrade Pack - 645 Description - Upgrade to six 645 (133oz.in.) servos! Give your BRAT superior strength. Requires the purchase of a BRAT kit.
Part# [ SUP-06 ] $161.76 USD

BRAT Sensor Panning Kit (Brushed) Description - This kit allows you to add obstacle avoidance or target acquisition to your Autonomous BRAT kit. The kit includes a 422 servo and all of the SES bracket components required to attach and pan the IR sensor. The GP2D12 sensor is included in the Autonomous BRAT kit. With this kit you will have everything required to do the Autonomous Water-Bottle Kicking Tutorial.
Part# [ BSP-BRU ] $32.00 USD

BRAT Sensor Panning Kit (Black) Description - This kit allows you to add obstacle avoidance or target acquisition to your Autonomous BRAT kit. The kit includes a 422 servo and all of the SES bracket components required to attach and pan the IR sensor. The GP2D12 sensor is included in the Autonomous BRAT kit. With this kit you will have everything required to do the Autonomous Water-Bottle Kicking Tutorial.
Part# [ BSP-BLK ] $32.00 USD

BRAT Robot Specs

No of DOF per leg = 3
Servo motion control = local closed loop
Height (as pictured) = 8.5"
Width (as pictured) = 6.0"
Ground Clearance = 2.5"
Weight (without batteries) = 22.2 oz
Range of motion per axis = 180 degrees
Accuracy of motion per axis = Servo controller dependant (SSC-32 = .09°)
Servo voltage = 6 vdc

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