Flashing and Booting from an EMMC module on an Odroid XU4 can be tricky. This is because you need a bootloader placed on a hidden Partition of the eMMC memory module. When you clean or flash an EMMC module with normal tools like Etcher or Rufus, you might delete the hidden partition that had the […]
Analog to Digital conversion with RC circuit in microcontroller projects
If you were to take the knob or dial off of an electronic device, you might find a potentiometer underneath it. A potentiometer is a variable resistor, and the kind shown below changes resistance as the knob turns. This particular one has a resistance range from 0 ohms to 10,000 ohms. RC circuit use combination […]
Flash your Pro Micro with Hex file without Arduino
Flashing micro controllers with Arduino IDE or Platform.io are fairly simple when you have the source code of your sketch but there are times where all you have is the HEX file and you need a simple way to program your Pro Micro or other micro controllers quickly. Both Arduino and Platform.io use a program […]
Bluetooth wireless Adapter for Atari Retro Joysticks and Paddles
In a previous blog article, I showed how you can make 2 and 4 port USB adapters to use with retro Atari Joysitcks. While that was really awesome, I recently made improvements leading to this next generation adapter that I will cover in this article. The top improvements are: Wireless Bluetooth support Paddle support in […]
Atari Retro Joystick USB adapter – Make or Buy – 2 and 4 ports
I recently built a Raspberry Pi 4 unit with Retro Pi and Emulation Station to check out its performance for retro gaming and when I got the Atari 800 emulation to work, it brought back many childhood memories of my first real PC. Games like Star Raiders and M.U.L.E. were well ahead of their time […]
Eight Constitution Medicine APP
Eight Constitution Medicine (ECM) is a comprehensive system of healing that has been proven effective for over 2500 years. It is one of the fastest growing health care modalities today. Why does one get tired after eating a meal? Why is one allergic to a particular food or medication and others are not? Why does one […]
Risk dice roller
Here is a simple mobile app I helped my son write. He is a big Risk fan and this seemed like a great way for him to get introduced to android development. Risk Dice Roller app is designed to replace dice needed for the original risk board game. It automates the rolling process and keeps […]
MS SQL query to Find Columns or Fields in Database
If you need to locate a field in a large database and you don’t know what table the filed is or not really sure of the exact spelling of the field, you can use this simple query to search for fields names in a database.
Inject onload javascript for asp.net aspx master page
1. Add reference to HtmlControls on top of your cs file 2. In your Page_Load function of the .cs file add 3. Make sure your master page BODY has the the matching id from above. in this case: 4. In your aspx file, add you load function.
document.getElementById in asp.net with Master Pages
Using JavaScript to locate controls in ASP.net pages that are linked to master pages can be tricky. This is because the ASP.net reassigns control IDs dynamically and the names change. A simple solution is to use asp.net inline Tags. For Example: Instead for using: document.getElementById(“Label1″) try using: document.getElementById(“<%=Label1.ClientID%>”)