ArduinadasArduino nano Every - A deep dive
https://wolles-elektronikkiste.de/en/arduino-nano-every-a-deep-dive
Ross of OttawaI've had some luck with that #ATMega4808 board as far as getting an #ArduinoNano wired up as programmer and using the #JTAG2UPDI code to push a 4808-friendly bootloader onto the device.
A problem though has brought me back into the nuances of the #CH340 serial chip world, which I had hoped I was done with yrs ago.
Seems maybe older MacOS versions have probs with CH340K vs G vs other variants.
I'm still on BigSur though, so perhaps this is reason to increment up to Ventura.
hackaday unofficialA DIY Biometric Device with Some Security Considerations
Biohacking projects are not new to Hackaday and it's certainly a genre that really piques our interest. Our latest biohacking device comes courtesy of [Manivannan] who brings his flavor of a wearable biosensor with some security elements built-in through AWS.
The hardware is composed of some impressive components we have seen. He has an AD8232 electrocardiogram front end, the MAX30102 integrated pulse oximeter IC for determining blood oxygen and heart rate, and the ever-popular LM35 for measuring body temperature. Either of these chips would be perfect for your next DIY biosensor project though you might try the MAX30205 body temperature sensor given its 0.1-degree Celsius accuracy. However, what really piqued our interest was the use of Microchip's AVR-IoT WA Development Board. Now we've talked about this board before and also mentioned you could probably do all the same things with an ESP-device, but perhaps now we get to see the board a bit more in action.
[Manivannan] walks the reader through the board's setup and everything looks to be pretty straightforward. He ultimately rigged together a very primitive dashboard for viewing all his vitals in real-time, demonstrating how you could put together your own patient dashboard for remote monitoring of vitals or other sensor signals. He emphasizes that all this is powered through AWS, giving him some added security layers that are critical for protecting his data from unwanted viewers.
Though [Manivannan's] security implementation doesn't rise to the standard of medical devices, maybe it will serve as a case study in the growing open-source medical device movement.
#medicalhacks #wearablehacks #amtel #atecc608a #atmega4808 #atwinc1510 #avr #aws #devboard #iot #microchip #security #wifi
