Hacker News Reader

Be aware, per erratum 9, that you’ll need to include external pull-downs instead of using the internal ones

It’s relatively old at this point, but I’m still getting excellent performance from the Teensy 4.1. It’s a little more expensive, around $30, but runs Cortex M7 @ 600MHz and includes a generous compliment of I/O and protocols.

I think it's still king of the hill. I've bought dozens.

The IMRXT1011 is $1.70 when bought in bulk from China from various vendors - it can do most of the things the Teensy has.

A reputable vendor: https://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU...

The IMXRT1064 can be had at $7: https://www.lcsc.com/product-detail/Microcontrollers-MCU-MPU...

> (...) the new Raspberry Pie Pico 2 is both orders of magnitude more capable than the chip used here and also around half the price.

That's cool and all but what are the tradeoffs?

Well it's new, it'll take a while for support to stabilize. The Pico 1 took almost a year given that the whole concept of a PIO was new, but this one should get there far sooner.