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 […]

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 […]

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 […]

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.

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.

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%>”)

The Bezier Curve formula below can be used to define smooth curves between points in space using line handlers (line P0 to P1 and line P2 to P3). P(t) = (1-t)^3P0 + 3(1-t)^2tP1 + 3(1-t)t^2P2 + t^3P3 At  t=0 you will be at p0, and at t=1 you will be at p3. The function below […]