ESP8266 – NonOS SDK version of blinky

This blinky example is using pure ESP8266 Non-OS SDK (v2.0.0). This project template has been tested on Ubuntu Linux. The complete code is on GitHub, here. Parts Required ESP8266 Development Module (for example based on ESP-12N, with build in LED) Software This code is written in C and can be compiled using xtensa-lx106-elf-gcc.  Don’t know how to start? Please read about building ESP8266 toolchain … Read more

Arduino – blinky with Timer1 COMPA

Next Arduino blinky project. This version of “blinky” example is using Timer1 Compare Match A interrupt to make an onboard LED blink for roughly one second. The code is on Github, click here. Parts Required Arduino board (i.e. UNO) Software This code is written in C++ and can be compiled using an Arduino IDE. All information about how to compile this … Read more

Arduino – blinky with Timer1 OVF

Yet another Arduino blinky project. This version of “blinky” example is using Timer1 Overflow interrupt to make an onboard LED blink for roughly one second. The code is on Github, click here. Parts Required Arduino board (i.e. UNO) Software This code is written in C++ and can be compiled using an Arduino IDE. All information about how to compile this project is here. /** * … Read more

Arduino – blinky with delay function

This is another blinky project. A “Hello World” program for the electronics. This version of “blinky” example is using delay function to make an onboard LED blink for roughly one second. The code is on Github, click here. Parts Required Arduino board (i.e. UNO) Software This code is written in C++ and can be compiled using an Arduino IDE. All information … Read more

ATtiny13 – blinky with timer COMPA (assembler version)

In this example I’would like to show you how to write in assembler “blinky” project that uses timer COMPA (Timer/Counter Compare Match A) interrupt. The previous blinky project is very similar to what is presented here, but with one exception – the delay section has been replaced by timer interrupt.  In our circuit LED is connected to PB0 and is blinking … Read more

ATtiny13 – blinky with delay function (assembler version)

This tiny project shows how to interface LED to the microcontroller ATtiny13 and write a simple program in anssembler to make it blink. The code is on Github, click here. LEDs are widely used for various display functions and can be directly (not quite directly, through the resistor) driven from the pins of AVR chip. In our … Read more

ESP32 – blinky with delay function

This blinky project shows how to interface LED to the ESP32 and write a simple program to make the LED blink. The full code is on Github, click here. Parts List ESP-WROOM-32 module USB<->TTL converter (3.3.V) Efficient power supply (3.3V) R1 – resistor 560Ω, see LED Resistor Calculator LED1 – basic LED Circuit Diagram Firmware … Read more

ESP32 – flashing the chip

Once the ESP32 Toolchain is built, we’re ready to compile and flash the example program. This short tutorial shows how to compile and burn the code into ESP32. Compilation Before compilation part we’re able to change menu options, i.e. we can configure the serial port to be used for uploading, etc. For the test, let’s … Read more

ATtiny13 – blinky with Watchdog Timer

Yet another ATtiny13  blinky project. In our circuit a LED is connected to PB0 and it is made to blink for roughly every second by using Watchdog Timer. The code is on Github, click here. Parts Required ATtiny13  – i.e. MBAVR-1 development board Resistor – 220Ω, see LED Resistor Calculator LED Circuit Diagram Firmware This … Read more