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A Handsoldered PCB Running Embedded Linux

A foreword

Homemade Linux boards have always been just a pipedream for many due to prohibitive complexity of both hardware and firmware. The situation hasn’t even changed with the arrival of Raspberry Pi and Beaglebone boards which still can’t be replicated in home labs either due to the absence of design files, proprietary components in […]

Luminardo: Setting up Environment and Flashing Bootloader

Flashing bootloader is probably first priority task following immediately after PCBA soldering and assembling process. A board with bootloader in place significantly simplifies firmware development process, allows not to be dependent on presence of external ISP programmer (such as USBTinyISP). It also allows for seamless integration with well-known and very popular Arduino IDE

As a […]

First Luminardo Prototype Assembled

First Luminardo prototype has been assembled and tested. As it usually happens, first revision is not without flaws. There are two issues with circuit diagram, one issue with component footprint, a few typos in BOM as well. First and the most annoying issue is related to 74AHC125 buffer (U5) which outputs never go to high […]