PJRC is renowned for its Teensy USB microcontroller development boards, offering high performance, versatility, and a compact form factor. PJRC products are perfect for intensive audio projects and rapid prototyping, providing seamless support for Arduino IDE and Teensyduino. From the Teensy 4.0 and 4.1 to specialized audio and PSRAM chips, PJRC ensures top-notch quality and innovation in every offering.