Tag Archives: arduino tutorial

Arduino Uno Temperature and Humidity


The DHT11 is a digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and sends out a digital signal on the data pin (no analog input pins needed). Its simple to use, and the update timing of the sensor is about 2 seconds. Thermistor temperature circuits can be much quicker and are very accurate in measuring temperature.
Arduino Uno Temperature and Humidity
We will be using the DHT11 sensor to measure temperature and humidity. A separate thermistor circuit will also be used to measure temperature on an analog input. This will be all done on our Arduino UNO R3 controller on our super starter kit. Let’s get started. Continue Reading!

Arduino Uno Super Starter Kit Ultrasonic Sensor


The ultrasonic sensor (HC-SR04) is great for all kinds of projects that need distance measurements. The HC-SR04 is inexpensive and easy to use. We will be sending signals directly to the sensor and interpreting the results without the need for a library.
Arduino Uno Super Starter Kit Ultrasonic Sensor
Ultrasonic sensor module HC-SR04 provides a 2cm-400cm non-contact measurement function, the accuracy can reach 3mm. The modules include ultrasonic transmitters, receivers, and control circuits. We will be wiring the ultrasonic sensor to our Arduino UNO R3 controller on our super starter kit. Let’s get started. Continue Reading!

Arduino Uno Super Starter Kit Servo


The servomotor, RC (Hobby) Servo is a type of gear motor that can only rotate 180 degrees. It is controlled by sending electrical pulses from our UNO R3 board. These pulses tell the servo what position it should move to.
Arduino Uno Super Starter Kit Servo
We will be wiring the servo to our Arduino UNO R3 controller on our super starter kit. Let’s get started. Continue Reading!

Arduino Uno Super Starter Kit Tilt Ball Switch


We will now look at the tilt ball switch on our Arduino Uno super starter kit. Tilt sensors (tilt ball switch) allow you to detect orientation or inclination. They are small, inexpensive, low-power, and easy to use. Their simplicity makes them popular for toys, gadgets, and appliances. Tilt ball switches are sometimes referred to as “mercury switches”, “tilt switches”, or “rolling ball sensors”.
Arduino Uno Super Starter Kit Tilt Ball Switch
We will be wiring a tilt ball switch to our Arduino UNO R3 controller on our super starter kit. Let’s get started. Continue Reading!

Arduino Uno Super Starter Kit Buzzers


We will now look at active and passive buzzer outputs on our Arduino UNO controller. Electronic buzzers are DC-powered and equipped with an integrated circuit. They are widely used in computers, printers, photocopiers, alarms, electronic toys, automotive electronic devices, telephones, timers, and other electronic products for voice devices. Buzzers can be categorized as active and passive. Turn the pins of two buzzers face up. The one with a green circuit board is a passive buzzer, while the other enclosed with black tape is an active one.
Arduino Uno Super Starter Kit Buzzers
We will be wiring passive and active buzzers to our Arduino UNO R3 controller on our super starter kit. Two pushbuttons with pull-down resistors will control the buzzers. Pressing the first button will play a melody on the passive buzzer. A two-tone alarm will sound using the active buzzer when the other push button is selected. Let’s get started. Continue Reading!