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Exploring different microcontrollers less than $1

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Resurfaced independently across 5 calendar years, with breakout response in 4 of them.

submissions
7
submitters
7
observed span
2017–2024
peak thread · 195 comments
929 pts
latest 20+ return · 2024-04-30
20 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

If I hadn't seen this article on Hacker News today, is there any combination of plausible keywords I could have typed into Google to find this particular article if I were looking for an in-depth review of microcontrollers? I tried "best microcontrollers reviewed", "best low-cost microcontrollers", "survey of microcontrollers", and a bunch of others. Nothing that Google finds in the first 10-20 hits is as good this resource, other than Wikipedia, though very good, isn't a technical review. I suppose…

alister·929-point thread·

My favorite is the ATTINY 85. It's so cheap and yet, it can do almost most of the things you can do an Arduino. And yes, you can program it using the Arduino IDE as well. Last year, I started out to digitalize my entire house with these tiny ATTINY 85 chips and with some nrF wireless chips. It has worked really well for me and I'm able to control and monitor any power port in my house as well…

neya·670-point thread·

Contrarian view: these days I don't care how much a microcontroller costs. In quantities I'm designing for, it doesn't matter, and the cost is dwarfed by the cost of my time writing the software. I've spent a lot of time dealing with crappy and broken vendor libraries, erratas, SDKs and toolkits where the vendor changes their entire strategy every year or so, and I'm tired. At this point I wrote (I thnk) three I2C libraries for various devices and systems…

jwr·332-point thread·

This is a good article but it's a few years old, and out of date now. I can't see its date with my current adblock settings. It would be great if someone could find it and put it in the title. There are stupendously powerful $1 microcontrollers now, including the RP2040 (dual core cortex m0+ with 264KB ram on the chip), ESP32-S2 (Espressif core with 400k of ram and wifi), and ESP32-C3 with wifi and RISC-V core and again something…

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
4

100+ points or 50+ comments

Total points
2134

reference only — not used in Hall rules or ranking

Total comments
656

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2017-11-06Exploring different microcontrollers less than $1First breakout · Best threadstefanpie929183
2019-05-07The Amazing $1 Microcontroller (2017)howard941670195
2020-09-09The amazing $1 microcontroller (2017)appwiz332177
2022-03-06$1 Microcontrollers (2017)graderjs17393
2024-04-30The $1 MICROCONTROLLER (comparison of cheap microcontrollers) (2017)Hall induction · Latest 20+ point returnem3rgent0rdr206
2024-08-26The $1 MICROCONTROLLER: 21 microcontrollers – all less than $1 (2017)Bluestein71
2024-10-28The Amazing $1 Microcontroller (2017)striking31