The objective of this post is to perform a brief analysis of the SN74HC595 shift register and its working principle.
Continue reading “SN74HC595: Shift Register”
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Buying cheap electronics at Ebay: Part 2
This post lists some basic components for creating projects that require soldering and explains how to buy them for cheap prices at eBay.
Designing a LED matrix
The objective of this post is to explain how to create a simple LED Matrix using PNP transistors and a ULN2803A integrated circuit, and assuming that only one LED needs to be connected at each time.
ESP8266: Controlling a buzzer
The objective of this post is to explain how to control a passive buzzer module using an ESP8266.
Real Time Clock: DS3231
The objective of this post is to describe the main functionalities of the DS3231, a very accurate real time clock from Maxim.
ESP8266: Read DHT11 measurements
The objective of this post is to show how to connect the DHT11 sensor to an ESP8266 and write a simple program to measure temperature and humidity. We assume the use of the Arduino IDE for programming the ESP8266.
Buying cheap electronics at Ebay: Part 1
This post lists some components to create a basic electronics prototyping kit, which can be bought for very low prices at eBay.
