Programming The Attiny45 With An Arduino As ISP Programmer
In this post, I’ll show you how to program the Attiny microcontrollers via the Arduino IDE using an Arduino board as an ISP programmer.
ESP32 WiFi Camera
In this post, I’ll show you how to program the ESP32 Camera board to live stream the video feed to your browser.
Lattice iCE40 FPGA IceStorm Tutorial
This tutorial will cover the hardware and software setup for the icestick development board that uses an iCE40 FPGA. The IceStorm open source toolchain will be used for programming the board instead of the vendor tools. For the demonstration, we’ll make a simple binary counter that will display its value with the onboard LEDs. The logic design will be defined/coded with Verilog.
Docker Cheatsheet
This post is a cheatsheet for Docker. I wrote this for myself so if I ever have trouble remembering some of the more common commands I can just look them up on my own site. And maybe someone out there on the internet will find this useful for themselves as well.
DIY Raspberry Pi Microscope
In this post, I’ll show you a Raspberry Pi microscope I made for soldering and inspecting PCBs. The great thing about it is that it has a long working distance. This enables the microscope to be mounted on the shelf above my workbench so it doesn’t get in the way. An additional benefit is that the image doesn’t shake if you bump the table when working.
T-SQL Cheatsheet
This short post is a cheat sheet for transact SQL or T-SQL for Microsoft Server. I wrote this for myself so if I ever have trouble remembering some of the more common queries(as I don’t work with databases on a daily basis) I can just look them up on my own site. And maybe someone out there on the internet will find this useful for themselves as well.
Serial Port Communication With Powershell
In this short post, I’ll show you how to read and write to/from the serial port using Powershell.
Measure The Length Of Coax With An Oscilloscope
In this post, I’ll show you how to measure the length or find a break in a coaxial cable with the help of your oscilloscope and waveform generator. We can do this using signal reflection that occurs when a transmission line is not terminated correctly.
Measuring Capacitors And Inductors With Your Oscilloscope
In this post, I’ll show you how to measure the value of capacitors and inductors with your oscilloscope and waveform generator. To measure the capacitor we’ll simply which will charge(periodically with a square wave) it through a resistor and measure how much time it takes the capacitor to charge to 63% we can then calculate its value according to the RC time constant formula which is t = RC. We’ll rearrange it to C = t/R to get out the capacitance.
Cheap DIY Spectrum Analyzer
In this post, I’ll show you how to make a cheap portable spectrum analyzer from a TV receiver dongle. The dongle gets sold as a TV (DVB-T) however its an SDR(software defined radio) which means that it can be used to receive pretty much any RF signal(depending on the chip used up to 1-2 GHz) and turn it into a digital one to be later processed by software.
