Ultrasonic Sensors and Arduino

Ultrasonic sensors can be used with Arduino to measure distances. These distances can then be used to make other actions happen- like an LED lighting up or a buzzer buzzing. Watch this video to find out how they work. Use this diagram to build a circuit to use an...

4-Digit 7-Segment Displays and Arduino

4-Digit 7-Segment Displays are tricky to use in circuits. These instructions will walk you through the process to get your your display corretly attached to your Arduino so you can get it coded and running. 4-digit-7-segment-instructions Once your display is correctly...

LCDs and Arduino

Use these diagrams to wire your LCD and get it ready to test.   LCD-Instructions Before you can get your LCD running, you need to find it’s address.  Use the code below, and copy the address from the serial monitor so that you can use it in the next code....

Keypads and Arduino

Use this diagram to wire your keypad and get it ready to test.   Using the code below will print the buttons that you push to the serial monitor. If you don’t know how to use the serial monitor, you can watch a tutorial...

Introduction to Soil Moisture Sensors

Watch this video and learn about variable resistance and how a soil sensor uses it to read moisture levels.    Use this diagram to learn how to wire an soil moisture sensor and use it in your projects.  Use this code and the serial monitor to take readings from...