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PJRC

Q: Can anyone give me a starting point or example code for programming an adjustable audio bandpass filter using the Teensy 4.1?

I recommend posting your question on the PJRC user's forum at https://forum.pjrc.com/. It is monitored by numerous Teensy power users, including the PJRC development staff, who should be able to provide you with assistance.

Product ID: 652295733

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Details

Brand
PJRC
Model name
TEENSY 4.1 No
RAM memory installed size
1024 MB
Memory storage capacity
64 KB
CPU model
Core M Family

⚡600MHz Cortex-M7 powerhouse

🌐10/100 Mbit Ethernet + Micro SD slot

💾1MB RAM with 8MB Flash storage

Frequently Bought Together

PJRC Teensy 4.1 ARM Cortex-M7 Processor at 600MHz with a NXP iMXRT1062 (Without pins)

Treedix Breakout Board Module with Pin Board for Teensy 4.1/3.5/3.6 Compatible with Arduino

MCIGICM 10pcs Male Header Pin, 40 Pin Header Strip (2.54 mm) for Arduino Connector

Description

🚀 Power your innovation with Teensy 4.1 — where speed meets versatility!

COMPACT POWERHOUSE - Slim 2.4 x 0.7 inch form factor fits anywhere, packing Teensy 3.6’s punch with next-gen upgrades.
CONNECTIVITY GALORE - Built-in 10/100 Mbit Ethernet and Micro SD socket keep you connected and data-ready.
VERSATILE I O OPTIONS - 35 PWM pins, 18 analog inputs, 8 serial ports, plus SPI, I2C, CAN Bus & IR modulator for ultimate flexibility.
MASSIVE MEMORY ARSENAL - 1MB RAM (512K tightly coupled) and 8MB Flash ensure smooth multitasking and ample storage.
BLAZING FAST PERFORMANCE - 600MHz ARM Cortex-M7 core delivers desktop-grade speed for your embedded projects.

The Teensy 4.1 features a 600MHz ARM Cortex-M7 processor with 1MB RAM and 8MB Flash, offering extensive I/O options including Ethernet, Micro SD, PWM, analog inputs, and multiple serial interfaces, all in a compact 2.4 x 0.7 inch form factor designed for high-performance embedded applications.

Specifications

Processor	600 MHz arm710
RAM	1024 KB LPDDR3
Graphics Coprocessor	ARM Cortex M7
Wireless Type	Infrared
Brand	PJRC
Series	TEENSY 4.1 No Pins
Item model number	TEENSY41
Operating System	Linux
Item Weight	0.352 ounces
Product Dimensions	2.4 x 0.7 x 0.15 inches
Item Dimensions LxWxH	2.4 x 0.7 x 0.15 inches
Processor Brand	NXP
Number of Processors	1
Computer Memory Type	SDRAM
Hard Drive Interface	Ethernet_10Base-T
Department	mens
Manufacturer	PJRC
ASIN	B088JY7P2H
Date First Available	November 26, 2019

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Can anyone give me a starting point or example code for programming an adjustable audio bandpass filter using the Teensy 4.1?

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