Hey all, I'm the author of Krux. I noticed some traffic coming from here on GitHub and was pleasantly surprised to find this post. Smiley Thank you, dkbit98, for the write-up!
Hi jreesun,
I am glad you found the source of traffic, joined Bitcointalk forum, and I hope you will stick around as we need more genuine users like you.
One question for you, have you checked Blockstream Jade hardware wallet and can you confirm it is using exactly the same M5StickV device as Krux wallet?
https://blockstream.com/jade/Wow! I honestly had no idea that existed until now. There's certainly an uncanny resemblance, but upon closer inspection there do appear to be some (minor) differences:
1. Their case is (obviously) custom and isn't the same one that the M5StickV uses. Their case also appears to be longer, and the front button is in a different location.
2. The specs of the two devices are similar but seem to be very slightly different: the Jade has Bluetooth, the M5StickV does not. Also, their battery is 240mAh, whereas the M5StickV is 200mAh. Maybe this is why their case is longer?
Looking at their code, they don't seem to be using MaixPy at all (M5Stack's version of Micropython), but rather are building on top of the Espressif IoT Development Framework.
Their hardware folder contains this:
https://github.com/Blockstream/Jade/blob/master/hardware/Jade_v1_schematics.pdfIt says "M5 Bitcoin Pocket," so I'm guessing it's a custom M5 product that is obviously extremely similar to the M5StickV with minor differences?