How to build an Arduino robot - Adding HC-SR04 ultrasonic sensors and an LCD display
My Amazon recommended products:
https://www.amazon.com/shop/garagegee...
I was running out of space on the first floor, so I decided to add another story. We now have a Stellaris Launchpad box on top of a MSP-430 Launchpad box.
I made the HC-SR04 sensors a little easier to use by replacing the male headers with female headers. This way I can connect to them with regular wires or jumpers. I installed 4 HC-SR04 sensors on Affordabot. Why? Mostly because they are cheap and look cool, but secondarily - I wanted Affordabot to be able to see in front of itself well, and also turn left or right intelligently.
I added a serial LCD up top. I went with the more expensive serial display because I was scared I would run out of pins. I'll probably be using an Arduino Mega by the time this is over....