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Peter Lorenzen peter@lorezen.us Categories
Category Archives: Embedded
Install Klipper on your old 3D-Printer and still keep Marlin
This is the final post in a series of 3 blog posts describing how I make Marlin and Klipper coexist on my 3-Printers: Dual Applications on ATmega2560 – Marlin AND Klipper – FAIL (well almost) AVR DualBoot Bootloader Install Klipper … Continue reading →
AVR DualBoot Bootloader
This is part 2 in a series of 3 blog-posts describing how I make Marlin and Klipper coexist on my 3-Printers: Dual Applications on ATmega2560 – Marlin AND Klipper – FAIL (well almost) AVR DualBoot Bootloader Install Klipper on your … Continue reading →
Dual Applications on ATmega2560 – Marlin AND Klipper – FAIL (well almost)
How to be able to boot into a backup firmware instantly. This is part 1 in a series of 3 blog-posts describing how I make Marlin and Klipper coexist on my 3-Printers: Dual Applications on ATmega2560 – Marlin AND Klipper … Continue reading →
Posted in 3D printer, Arduino, Embedded
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I²C or SMBus sniffer using Arduino
I had a need to continuously monitor a I²C bus, so I looked around for an Arduino solution, but didn’t find anything that suited my needs, so I wrote one myself. None of the I²C-sniffers I was able to find … Continue reading →
Server Power supply DPS-750TB
and how to get PMBus access from f.ex. a Raspberry Pi My favorite power-supply for almost anything is the Server PSU for Dell R510/R710/R910. It is a 750w 12v 60amp supply with 80-plus-gold standard, you can get them for $10-20 … Continue reading →
Posted in Arduino, Camper, Embedded, Hardware, HomeAutomation, Linux, MySensors, Raspberry Pi
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Server Power supply DPS-1200FB
Among hackers the DPS-1200FB seem to be the most popular choice for a powerfull Server PowerSupply 12volt 100Amp for less than $20 delivered. There is a lot of information available for this PSU. So if you want to really get … Continue reading →
Posted in Arduino, Camper, Embedded, Hardware, HomeAutomation, Linux, MySensors, Raspberry Pi
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MySensors Debug print @ 5.3Mbit/sec freeing Hardware Serial Port
MySensors provides a lot of useful debugging information on the serial port when MY_DEBUG is defined, I need to use the HardwareSerial for another purpose. but would still like to have the option to see the debug prints. which could … Continue reading →
Debugging @ 5.3Mbit/sec (5333333 Baud) on stm8s microprocessors
I just tried this using sdcc-4.2.0, and it didn’t work, the calling convention has been changed, the character should be passed in the A-register. In 2018 sdcc passed parameter on the stack. With the proper line commented out in the … Continue reading →
Stress testing 5.3Mbit/sec serial debug-stream from Arduino
I got the idea for Debugging @ 5.3Mbit/sec (5333333 Baud) on Arduino and other Embedded systems which basicly let embedded CPU transmit as fast as possible and let the rest of the world adjust to whatever speed that happened to be. … Continue reading →
Debugging @ 5.3Mbit/sec (5333333 Baud) on Arduino and other Embedded systems
When debugging embedded system the long tried method has been to generously distribute printf() statements through your code, once everything is working as expected, you then have to comment them out or remove them. Over the years I have perfected … Continue reading →
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