Creating Your Own Chip (4) – PDM Section

Creating Your Own Chip (4) - PDM Section

Word count: 821, reading time approximately 5 minutes PDM (Pulse Density Modulation) is an interface commonly used to connect digital microphones, which have become a standard peripheral in modern electronic devices. It can be considered an essential interface in SoC chips. First, let’s understand the timing of the PDM interface. 1 Interface Timing The digital … Read more

RGB LED Strip Controller

RGB LED Strip Controller

In September 2024, I DIYed an RGB LED volume meter using the ATMEGA328P to collect analog signals and drive the WS2812. The strip is 1 meter long with a total of 60 LEDs, super cool and super fun so it’s basically online 24 hours a day. Later, while browsing forums, many experts were talking about … Read more