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I spent the first 20 years of my career as an embedded systems engineer and the most expensive parts were generally the case and power supply. For devices with
by smoyer 10y ago
I spent the first 20 years of my career as an embedded systems engineer and the most expensive parts were generally the case and power supply. For devices with specialized sensors, they generally dominated the costs. I think you're right - it's the sensors that matter. I don't think $199 will buy you a laboratory grade sensor though.
If we're going to make OSS firmware for this (and what's "firmware" now that everything is FLASH?), creating a tear-down will be the first step. Anyone willing to loan one of these to TeMPOraL or me? If you're capable of doing it yourself, could you create a tear-down?
- TeMPOraL 10y ago> I don't think $199 will buy you a laboratory grade sensor though. I don't think so either. I was thinking more about "not the cheapest crap you can source for < $10 on Aliexpress". Some sensors that are even remotely capable of making reliable and accurate measurements in end-user conditions.
- tyingq 10y agoInfo about the hardware is somewhat difficult to track down.. "The device runs the 32-bit version of Micrium RTOS (real time operating system). Under the hood, CNX Software says the layout seems somewhat similar to the Laird Technology BL600 and RFDigital RFD51822 modules, both based on Nordic nRF51822, an SoC with Cortex M0 CPU, 256kB flash, 16kB RAM, and a 2.4GHz Bluetooth low energy transceiver."[1] [1] http://www.tgdaily.com/hardware-features/72028-video-scanadu-scout-is-a-medical-tricorder-for-android-and-ios http://www.tgdaily.com/hardware-features/72028-video-scanadu...
- TeMPOraL 10y agoSo a standard BLE platform. But the most interesting information - sensors used - is unfortunately missing.
- tyingq 10y agoNot what you were looking for, but indicative that sensors were a key issue. https://www.scanadu.com/blog/making-headway-with-the-scanadu-scout https://www.scanadu.com/blog/making-headway-with-the-scanadu...