Electronics related posts.
This time I am going to talk about how to use the bluetooth connection BLE (Bluetooth Low Energy) in our ESP32. At the consumption level it may not contribute much since the consumption of the ESP32 processor is not low, but what it will provide us is an advanced communication…
You have most likely chosen this microcontroller for its connectivity options. These include Bluetooth connectivity, and in this post we are going to learn the basics about how to use it. First of all, to have everything unified and not complicate myself, I use the Arduino IDE, although sometimes I…
This time I am going to talk about how to start using our ESP32 microcontroller. In all traits this microcontroller is superior to most Arduinos, but it also consumes more power. This must be taken into account because depending on our project, it may be to kill flies with cannon…
Today I am going to bring you something a little more advanced in Arduino, and it is the way to use PCINT Interrupts (Pin Changes interrupts), in Arduino. Earlier we talked about hardware interrupts (INT), which were limited to certain pins depending on the Arduino model. The advantages of PCINT…
Some time ago I made a post about how to improve the analog readings of your Arduino. Today I bring you part 2, in which I add new methods to improve the readings. In this post I will focus on the VREF settings, and on a new functionality that I…
One of the interesting things about the Raspberry Pi Pico is that it has two cores, which will allow us to perform multithreaded executions. If you don't know what multithreaded execution is, I'll tell you what your computer does and what allows you to have several programs open at the…
Hello, today I bring you a basic tutorial on how to use a raspberry pi pico together with MicroPython, which will delight hobbyists. Mainly because it far exceeds the widely used ATMega328p in several respects. The technical differences between the two are as follows: Raspberry Pi PicoATMega328pCores21Architecture32 bits ARM8 Bits…
Today I bring you a tutorial about how to use the bit by bit operations, lso called bitwise. This kind of operations are very useful programming, because it will allow us to do some operations like for example: Save memory packing multiple booleans inside every byteWork with microcontroller registers (wich…
If you've ever used buttons with the Arduino, you may have noticed that the keystrokes were sometimes doubled, and that's where the button debounce comes in. This is because a button works by joining two mechanical elements (contacts), to close the flow of current, which can cause false contacts. Arduino…
This time I bring you a guide about STM32F103 (Bootloader and programming). This microcontroller has the advantage of having more capacity on almost everything compared with an Arduino (ATMega328p), having more SRAM, program memory, ADC and DAC resolution... for a little more money. More info into the Datasheet. STM32F103_datasheetDownload Furthermore…
