This post shows how to design a sawtooth generator circuit, or ramp, which uses a current source and the integrated circuit 555.
Category: Tutorial
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.
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.
2 common base BJT amplifier projects
The common base is little known configuration for amplifiers using BJT. This type is used in high frequencies.
2 common collector BJT amplifier projects
In this post, it is shown another type of amplifier configuration using BJT. This time, it is the common collector or emitter follower.
2 projects of BJT common emitter amplifiers
In this post, it is shown how to design a BJT amplifier with voltage divider on common emitter mode. Two examples of projects are presented.
Using the MPU6050 module with Arduino
The MPU6050 module is an accelerometer and gyroscope with 6 axis degrees of freedom. In this post, are shown the operation and a project example.
4 digits display TM1637 with Arduino
In this post, are shown how to use Arduino with the TM1637 module, a 7-segment display with 4 digits and 3 project examples.
Current sources
The current sources are electronic circuits that provide a constant current. In this post, are shown some examples.
Accelerometer: how does it work and how to use it?
The accelerometer is present in every smartphone, tablet, and portable videogames. In this post, are shown the operation and how to use a module with Arduino.