Real Time Clock: DS3231
The DS3231 is a real time clock from Maxim that allows us to measure time with a very good accuracy.
Misc
Arduino IDE installation awt.dll error
How to solve the error opening the awt.dll file, during the installation of the Arduino IDE.
IoT: Temperature logger
Architecture of a simple IoT temperature logger using the ESP8266 and a web server deployed on the cloud.
Laws of electronics: KCL (Kirchhoff’s Current Law)
Description of Kirchhoff’s Current Law (KCL).
Laws of electronics: KVL (Kirchhoff’s Voltage Law)
Description of KVL (Kirchhoff’s Voltage Law), one of the basic laws of circuit analysis.
Using a ULN2803A to control a DC motor
How to use the ULN2803A IC to control a DC motor, using an Arduino board.
Resistors calculations and voltage divider
This post explains some basic calculations with resistors and voltage dividers.
Cheap power supplies
This post lists some cheap options for power supplies to use in electronic and embedded systems projects.
Voltage sources and resistors
This post explains some very basic principles about electronics, namely DC voltage sources and resistors.
Smart Medication Dispenser with Arduino
Description of a prototype of a smart medication dispenser, created with an Arduino as the controlling unit