Purpose:

This 4 wheel drive robot supports RC remote control, a headlight, a 2DOF arm with a gripper, remote Nerf gun firing, 5.8ghz video transmission, and automation via Raspberry Pi (not yet implemented).

Parts List:

4 x Pololu brushed DC gearmotors (2 with encodersj, 2 without)
https://www.pololu.com/product/3241

4 x Pololu wheels
https://www.pololu.com/product/1555

2 x Pololu motor mounting brackets (1 pair/pkg)
https://www.pololu.com/product/2676

1 x Ion Motion 2x15A Roboclaw motor controller
https://www.pololu.com/product/2395

Aluminum angles from Lowes - as needed to build frame.

2 x misc. servos for arm
https://www.amazon.com/gp/product/B0006O3XEA/

1 x misc. servo for Nerf gun trigger
https://www.amazon.com/gp/product/B0006O3XEA/

2 x misc. aluminum servo brackets (with bearing)
I can't find the ones that I usually get. I was getting them on ebay for around $4 each.

1 x ~5v headlight that can be turned on and off by simply removing or restoring power. Don't get one that uses a soft switch, because when you apply DC to those, they don't turn on until the button is pressed.

1 x Makeblock gripper
https://www.amazon.com/Makeblock-Robot-Gripper/dp/B00WG3KTL4/

1 x Arduino Nano
https://www.amazon.com/gp/product/B015MGHH6Q/

1 x Arduino Nano breakout board
https://www.amazon.com/gp/product/B011U8G1JO/

1 x Keystudio I2C PWM driver
https://www.amazon.com/gp/product/B0179AXJUQ/

1 x 5.8ghz video transmitter
https://www.amazon.com/gp/product/B00MLS0NOW/

1 x 12v camera
https://www.amazon.com/gp/product/B00RCZYIR2/

1 x Misc dual H Bridge, for controlling headlight and gripper
https://www.amazon.com/DROK-Controller-H-Bridge-Mega2560-Duemilanove/dp/B00CAG6GX2/

1 x electric Nerf gun. I used N Strike Elite
https://www.amazon.com/Nerf-N-Strike-Elite-Stryfe-Blaster/dp/B009T45XNM/

1 x 5v BEC for servo power and Arduino
https://www.amazon.com/Ship-Hobbywing-Switch-mode-UBEC-Lowest/dp/B008ZNWOYY/

1 x Misc 12v battery for video transmitter, camera, motor controller, and drive motors

Programs:

Arduino Nano code is on my github:
https://github.com/nshaver/nerfgun_rc_robot/

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Remote Control and Thermometer for Cappuccino Machine

Wednesday, November 18, 2015, 06:22 PM - Programs, Devices, IOT
Posted by Administrator

Purpose:

My cappuccino machine takes about five minutes to warm up, and I wanted to turn it on remotely over wifi when I wake up so that when I enter the kitchen in the morning I wouldn't have to wait for it to warm up. I also wanted to be able to tell whether or not it was warmed up, so I added a thermometer and a LED ring to display the temperature.

Parts List:

1 X ESP8266
http://www.amazon.com/HiLetgo-Version-N ... ds=esp8266

Dallas temperature sensor
http://www.amazon.com/DROK-Temperature- ... V2RPBDKQ77

Adafruit Neopixel LED ring
http://www.amazon.com/NeoPixel-LED-Ring ... pixel+ring

PWM servo, a Hitec perhaps
http://www.amazon.com/Hitec-31311S-HS-3 ... itec+servo

ESP8266 Code

The code is on my github:
https://github.com/nshaver/cappuccino-power

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Atticbot

Sunday, June 14, 2015, 05:47 PM - Robots
Posted by Administrator

Purpose:

Atticbot is a remote control vehicle thing that I designed to remotely crawl around my attic and inspect the bats that had moved in. It's basically just a couple of continuous-rotation servos attached to a yardstick frame, a battery, an RC receiver, a video transmitter, and a camera.

Parts List:

2 x continuous rotation servos
https://www.amazon.com/Futaba-FUTM0031-S3003-Standard-Servo/dp/B0015H2V72/

2 x yardsticks for frame

1 x RC receiver - FrSky somethingorother
1 x RC transmitter - Turnigy 9XR-Pro perhaps
1 x 5.8ghz Video transmitter+camera
1 x 5.8ghz Video receiver/display
https://www.amazon.com/Eachine-LCD5802S-Receiver-Monitor-Antenna/dp/B014IVSKGW/

I've really skimped on details on this parts list. Email me if you have questions.

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Object Avoiding Robot

Monday, June 1, 2015, 09:28 PM - Robots, Programs
Posted by Administrator

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

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RC Robot with Headtracking and FPV Video

Monday, May 4, 2015, 09:48 PM - Robots, Programs, Devices
Posted by Administrator

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

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