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Comment by sophacles | Hacker News Reader

Embedded can be a tiny little msp430 with RAM measured in bytes, or it can be the latest and greatest intel flagship - it's a description of how the chip is used more than the chip type.

As CPUs get more powerful in general, so too do the little development boards. I can spend $10 on a board with multiple cores and megabytes of ram to drive my blinky lights and do wifi - that's enough power to run a full unix.

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where? where can i get one?

Esp32 boards has 2 cores and cost $5, works fine in Arduino. Try AliExpress.

And can use up to 8mb of psram and 16mb of flash

also can interface to sd cards easily for gigabytes of mass storage

Showing some Teensy love, crazy the 4.0 has 600MHz base speed.

Is that a Cortex-M7 or something?

Yeah that's what it says. I like it because it has so many connection pins eg. i2c/can be lazy.

I have STM32 and Beaglebone too but have not used them yet.

Teensy is great, but that puts you in the $20 range and doesn't have WiFi.

In my case I just use an ESP01 to add WiFi.

I forgot to mention, blinky demo compilation take 60s on my PC, that's the only downside but maybe there are some workarounds.

Well, there's a "hardware" link at the top of the linked article for starters.

Or google "esp-32" to find store selling a very popular one.

Or check out what's available on sparkfun or adafruit.

I’m a fairly loyal customer of adafruit. I really like their stuff and I’m not ashamed to say I really like circuit python. So much of embedded work is writing drivers and circuit python has many many already written and ready to go.

The Raspberry Pi foundation recently (about a 18 months ago) released their own dual-core ARM chip - the RP2040 - and a corresponding dev board - the Pi Pico. The Pico dev board runs about $4 plus shipping from authorized resellers.

Within the past few weeks, they introduced a wireless version - the Pi Pico W. It's about $6 from authorized resellers, though stock is hard to find at the moment.

https://www.raspberrypi.com/documentation/microcontrollers/

https://www.raspberrypi.com/news/raspberry-pi-pico-w-your-6-...

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