GUARDIAN BUILDING INSTRUCTIONS
The Guardian is a small guard robot that lets you see
what's happening at home. The robot is controlled using text messages.
Here is a step by step building instructions.
STEP FOUR (Front bumper)
3D-print and build the front
bumper. Wire the sensors and LEDs on the rack.
1 x 3D-printed Front bumber
1 x Ultrasonic Sensor
2 x Bright green LED
2 x Resistor 1K
Front bumper STL-file 3D printing: