This is a continuation of tinyAVR how-to series. This blog post is going to be about AVR CPU, its possibilities and registers. Features 8-Bit, High-Performance AVR RISC CPU: 135 instructions Hardware multiplier 32 8-Bit Registers Directly Connected to the Arithmetic Logic Unit (ALU) Stack in RAM Stack Pointer Accessible in I/O Memory Space Direct Addressing … Read more

The easiest way to start programming MCU is to use their General Purpose Input/Output pins to read a button and/or turn ON/OFF an LED. This post is going to be exactly that – an introduction into Attiny Series-0 GPIOs with easy to understand examples which should help you get started with the MCU. What is … Read more

Starting from today (the day this post is published), there will be a possibility to subscribe to a newsletter. So, the main question which might rise to you is why you should subscribe to it? It is a good question 😀 Well, first of all, for now, I am planning to send a newsletter once … Read more

There are lots of cheap USB-Serial adapters on the market which most of the time are perfect solution if you want to flash a MCU or you need a data connection between a PC and some kind of device with serial interface. But those cheap solutions are not suitable if electrical isolation between a PC … Read more

If you have ever designed your own PCB with ESP12 module on it, probably you have left some kind of a connector to program the module. But what if you don’t want to have an extra connector or you don’t have enough space on a PCB? Then you could use an pogo addon for ESP-12 … Read more

Handful of older generation AVR MCUs needs ISP (In System Programming) connector to flash your own firmware. Usually if you design your own PCB, you will place somewhere 6 pin header (2×3 pins) as ISP connection. Most of the time it makes sense, unless PCB needs to be small especially in its height. In these … Read more

This is probably the simplest way of making a PCB at home. Although with this method the board will not look nowhere near to the professionally made ones, it will do its function. Also, because it involves drawing the traces by hand, it is mostly suitable for making PCBs where bigger SMD or Through Hole … Read more

You might want to connect an encoder to your Arduino board when you want to have a physical control over you electronics. The encoder might also be a great alternative to physical pushbuttons as a rotating knob might be a more intuitive solution for some applications. Table of contents Encoder Used hardware in this example … Read more

Today is the continuation of the DIY micro headphone amplifier. I have already talked about it in my previous two posts where I have introduced the idea with a prototype and where I have talked about custom made PCB dedicated for this project. So, todays topic is how I have soldered the amplifier. Other post … Read more