Microcontroller addict [Debraj] decided to make his own programmable sine wave generator ... with an Arduino controlling the AD9833 chips and two programmable gain amplifiers (MCP6S31).

Using a copy of [SPICE] a free circuit simulation application, I have created several sine wave sources and summed them together. Seen here, the waves combine into a square wave with it looking ...

Use this formula when given the sizes of two sides and its included angle.

If you're looking for a power source within the Ryobi battery line, you'll find yourself facing many decisions like how many watts you need it to handle, and which batteries it takes. If you're ...