DHT11 and DHT22 are sensors manufactured by Aosong, with a digital output for measurements. Here, it’s shown how to use it on Arduino.
Category: Projects
Darlington and Sziklai pairs
The Darlington and Sziklai pairs are settings with BJT transistors. The comparison between both and some circuits are shown in this post.
Digital voltmeter ammeter: how to use it?
In this post, are shown how it works and how to use the digital voltmeter ammeter. The component I bought is the DE-2645-02.
IR vehicle with Arduino
The IR vehicle is a simple project, a car with Arduino, that receives an infrared signal from a remote control to control 2 servomotors.
Arduino tutorial (Part 8, IR remote control), 2nd edition
One more Arduino tutorial. This time will be explained how to control devices with an IR remote control. The operation of IR (infrared) control will be subject to another post.
Sawtooth generator circuit
This post shows how to design a sawtooth generator circuit, or ramp, which uses a current source and the integrated circuit 555.
Meet the LM3915
The LM3915 is an integrated circuit that uses many operational amplifiers to measure voltage level or audio volume.
Arduino with LCD Keypad
This post’s subject is the LCD Keypad module, which allows to control a LCD display with buttons without wires and a protoboard.
2 projects with LED effect
The two shown projects to make LED effect using the Johnson counter 4017.
Arduino with Bluetooth module HC-05
In this post, it’s shown how to control an Arduino with a smartphone using an easy method, through a Bluetooth module HC-05 or HC-06.