There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
1–10 of 199 posts
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#2Excellent. Just what the Dr ordered.
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#3[deleted]
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#4I worked at a company that was using these chips to control doors. They're extremely cheap chips, but writing code for them is not pleasant. Documentation is lacking and the tools people use to write code for it suck. Props to the devs who helped put this together.
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#5The chip is $4. The test is much more expensive than that.
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#6This is cool, and I enjoy foone's tweets about hacking around on embedded electronics you can buy at your local pharmacy. I just hope the unscrupulous don't have a field day with the potential spin this story and headline can have.
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#7The chip is $4. The test is much more expensive than that.
And it’s about half price @ 1000 units.
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#8I worked at a company that was using these chips to control doors. They're extremely cheap chips, but writing code for them is not pleasant. Documentation is lacking and the tools people use to write code for it suck. Props to the devs who helped put this together.
At that point, why not just use something like the original SoC from the Raspberry Pi 1 and use the plethora of Linux dev tools available?
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#9Nordic is not really that cheap if you just want a Cortex-M4. You buy Nordic parts for their radios.
If you just want processing power, GigaDevices has an M4 at less than $1 last I checked. Unfortunately, it wouldn't work for the design we were working on as the standby power consumption wasn't great.
Re: There's an ARM Cortex-M4 with Bluetooth inside a Covid test kit
#10The chip is $4. The test is much more expensive than that.
The Digi-Key price is $4. The direct price when buying millions of units will be a fraction of the Digi-Key price.