A zero-CPU-Overhead OV7725 Camera Streaming Library for RP2350 (90fps)

111 · Adafruit Industries Blog · July 16, 2026, 2:53 p.m.
Summary
This blog post discusses a high-performance library for capturing images from the OV7725 camera using the RP2350 microcontroller. The library utilizes DMA and PIO automation to eliminate CPU usage during image capture, allowing developers to dedicate CPU resources to AI/ML tasks and real-time processing. It achieves a fixed streaming rate of 90 frames per second, showcasing innovative techniques for efficient camera streaming.