Posts Tagged "ATmega"

Precision PWM Frequency for Arduino / ATmega 328P

I’m working on an application where I need fine adjustment of PWM frequency. The existing PWM code that I found, such as the Arduino PWM Frequency Library, only allows integral frequencies to be selected. On pins supported by 16-bit timers, the Arduino PWM Frequency Library allows fine adjustment of duty cycle, but not frequency. After […]

WS2812B LED (NeoPixel) Control: Part 1 – Serial Control via 8-bit ATmega (Arduino)

INTRODUCTION I’ve been laying the groundwork for doing some projects using remote controlled RGB LEDs. My first attempt was Lampduino, which used discrete RGB LEDs, and an ITEAD Colorduino as a controller. In that project, I ran into several pitfalls: though inexpensive, assembly of the LED matrix was very labor intensive the LED’s were rather dim, […]