Robots (7)
Programs (6)
Devices (5)
Tutorials (5)
IOT (2)

Object Avoiding Robot

Purpose:

This 4wd robot navigates about using two SR04 ultrasonic distance sensors. One sensor points down to detect stairs/cliffs, and the other points forward and rotates left/center/right using a micro servo.

Parts:

4 x continuous rotation servos (for drive wheels)
https://www.amazon.com/gp/product/B01GYE5XZM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

4 x wheels - must misc wheels I rounded up from toys, screwed onto the servo horns.

1 x micro servo to rotate forward-facing SR04
https://www.amazon.com/gp/product/B019H9BNTQ/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

2 x SR04 ultrasonic sensors\
https://www.amazon.com/Elegoo-HC-SR04-Ultrasonic-Distance-MEGA2560/dp/B01COSN7O6/ref=sr_1_1?s=electronics&ie=UTF8&qid=1494889316&sr=1-1&keywords=sr04

1 x Arduino
https://www.amazon.com/gp/product/B01N7I0W77/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

misc wood, hot glue gun, machine screws

Programs:

The Arduino code for this robot can be found here:
https://github.com/nshaver/4wd_sr04_robot/tree/master

RC Robot with Headtracking and FPV Video

Purpose:

This is a 2 wheel drive robot that uses car wiper motors for its drive motors, sends video to FPV goggles, and receives headtracking data to move the camera accordingly on a two-servo gimbal.

Parts:

2 x DC wiper motors (modified to remove common ground)
1 x RC Receiver - frsky
1 x Arduino Uno for robot
1 x Arduino Leonardo for head tracker
1 x gyro/accelerometer
1 x Motor controller (dual H bridge was used)

Programs:

Headtracker Arduino code (requires 32U4 Arduino):
https://github.com/nshaver/headtracker/tree/master

RC Robot code (works on just about any Arduino):
https://github.com/nshaver/wipermotor_robot/tree/master