Saturday, June 13, 2020

Hardware Wallet

ProtoBrody

E-Wallet Trezor One

HARDWARE BY Pavol Rusnak
RE-Maked by Protobrody





This is a STM32F205RET6 LQFP-64 Microcontroller that is the CPU of the Hardware Wallet that is the same as the Trezor One Wallet from this site Trezor Site . I only builded this Hardware from this github repository Trezor Hardware .


the main idea of build this wallet is that i want to know about how the E-Wallets works and how can keep our bitcoins safe from Hackers, for that i need first load the Firmware from this repository Trezor Current Firmware , but it works with MicroPhyton inside the STM32..

But i really dont know what safe is MicroPython or what kind of vulnerabilities exist, so my idea is get the previous designed firmware and make that more safe that with MicroPython and maybe with other core or why not with a FPGA. Maybe that will Get me inside other E-Wallet Hardware Dessign.

now the next step is load the Firmware and Work with that.
HECHO EN MEXICO

Friday, May 22, 2020

KL25 NANO

ProtoBrody

KL25 NANO

DESSIGNED BY ProtoBrody
This is a MKl25Z128VFM4 QFN 32 Microcontroller that will be the CPU of a IOT project that connect to the network Sigfox, So i was using a FREEDOM BOARD KL25Z but that Board is to large for my purpose so i get the idea to make my custom board for the IOT system.
when the pcb arrived from jlcpcb i got so excited that the only thing that i wish to made was to mount the QFN32 and see if this layout correctly works, so i wondered that if i dont have troubles when i will try compile anything.
so i TAKE the OpenSDA from the FRDM and isolate the Kl25z from the board and connecting the KL25 NANO.
now let's play with this board.
HECHO EN MEXICO