Category Archives: Arduino

I²C or SMBus sniffer using Arduino

Posted on April 11, 2022 by peter

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 →

Posted in Arduino, Embedded, Linux, Mac | Comments Off

Server Power supply DPS-750TB

Posted on July 7, 2020 by peter

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 | Comments Off

Server Power supply DPS-1200FB

Posted on July 6, 2020 by peter

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 | Comments Off

PlatformIO and Marlin – and how to have separate config files, for different 3Dprinter while sharing the same code.

Posted on April 27, 2020 by peter

I am using Marlin 2.0 to control my 3D printers, Marlin 2.0 can still be compiled and installed from the Arduino-IDE,although I use the supplied Makefile. To take advantage of other processors you have to use PlatformIO. In this article … Continue reading →

Posted in 3D printer, Arduino | Comments Off

Marlin 2.0 using Makefile (and reclaiming io-pins on atmega1284p based mainboard)

Posted on March 20, 2020 by peter

I am using Marlin 2.0 to control my 3D printers, I like to be in full control so I compile my own firmware, adding my own tweaks. Most people probably use the Arduino IDE to compile and install the firmware … Continue reading →

Posted in 3D printer, Arduino | Comments Off

MySensors Debug print @ 5.3Mbit/sec freeing Hardware Serial Port

Posted on November 13, 2019 by peter

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 →

Posted in Arduino, Embedded, MySensors | 1 Comment

MySensors

Posted on April 26, 2018 by peter

Jeg har i lang tid kigget efter et frame-work til at konsolidere mine sensorer. I mange år har jeg brugt Raspberry Pi til at monitorere temperaturen i vores gulv-varme system som jeg har beskrevet i Raspberry Pi and Onewire Temperature … Continue reading →

Posted in Arduino, HomeAutomation | Comments Off

Stress testing 5.3Mbit/sec serial debug-stream from Arduino

Posted on February 13, 2018 by peter

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 →

Posted in 3D printer, Arduino, Embedded, on Hackaday | 2 Comments

Debugging @ 5.3Mbit/sec (5333333 Baud) on Arduino and other Embedded systems

Posted on February 12, 2018 by peter

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 →

Posted in Arduino, Embedded, on Hackaday | 8 Comments