228 Results for "raspberry pi"

The Perfect is the Enemy of the Good.
Log from 22-bit Capacitance to Digital Converter
The seismometer has been running for a couple of days with the new C2D converter. I made some changes to the original setup to accommodate the C2D converter: The 15 inch long cabling from the sensor to the C2D converter was too long. I thought that the...

First step (part two)
Log from Car alarm secure remote with nRF24LE1
Now connect the two modules to the Raspberry Pi.I'll make a diagram of the connections but meanwhile I'll leave the list of connected pins (this module uses the 32 pin version):nRF24 - Raspberry GPIOFCSN (P1.1) - 8FMISO (P1.0) - 9FMOSI (P0.7) - 10FSCK...

The Shell and Touch Display
Log from Mycodo - Environmental Regulation System
This build log will cover the construction of a hardware enclosure that has both a 7" touchsceen LCD display (1024x600 native) and switched outlets integrated into the unit. Today's segment will cover installing the LCD, Raspberry Pi, power/signal distribution...

TSE80: Respin & more.
Log from Tiny SCSI Emulator
As I have had some time to further the project, I've done a redesign of the board (see the pictures section on the left) with room for two Teensy microcontrollers, and a header for a Pimoroni Pirate Audio (or other Raspberry Pi compatible I2S audio hats...

Reprogram the code in Golang
Log from Prometheus Alarm Clock
Hey guys and gals! So in order to be able to play music on my speakers through my Pi, I am installing and running a program called Shairport-Sync (Github). It hosts a Airplay server on the Raspberry Pi, and allows the playback of music via the network...

Buttons
Log from Ye Olde Nowt
Pretty much every GPIO pin not used for the display or audio is used for the buttons. I decided to make it simple and just use a separate pin for every button. The list looks like this:UP 20DOWN 26LEFT 16RIGHT 6A 23B 7L1 12L2 5R1 4R2 17START 22SELECT...

Blowing off some CPU steam
Log from Upkie wheeled biped robots
When running the Pink balancer agent on Upkie, the four CPU cores of the Raspberry Pi are used as follows: CPUIDProcessesThreadsUsage (%)0Spine (+ other system processes)Logger (+ other system threads)10 ± 51SpineSpine loop10 ± 52SpineCAN communications50...

Das Blinkenlights
Log from VoiceBox
I've covered the fiddliest part of setting up a Blinkt server in the previous wiring log, so we may as well launch into a discussion of Blinkter.py, a flask server controlling a Blinkt RGB LED strip. As discussed, the first thing to do is to make a local...

ZeroPhone - streaming to Youtube Live, Facebook or Twitch
Log from ZeroPhone - a Raspberry Pi smartphone
I recently spent a weekend on a hackathon. It was organized by Garage48, an organization that makes hackathons, among other things. This hackathon was called "Hardware&Arts", naturally, it's hardware-centered, with a really small part of "arts" in it....

Outdoor Speakers and Audio setup
Log from Musical Jack-o-Lanterns
Of all of the project, this is probably the most simplistic. I considered building a more permanent speaker enclosure, but at the end of the day I was more interested in getting the project up and working than I was in diving into the specifics...

the precursor device
Log from Buzzer System for Trivia Events
When I first started this project a years ago I started with simple idea, I originally designed cases for switches and had wires connecting to shift registers that directly interfaced with a raspberry pi which displayed the number of the first user to...

KeyboardWhiz hardware background
Log from All About Laptop Keyboard Reuse
Laptop keyboard FPCs can have up to 32 pins - and "keyboard+other things" connectors, on like Thinkpad or Framework keyboard modules, can even have up to 50 pins. It's hard to find a cheap USB-capable microcontroller with so many pins. A typical keyboard...

Solution #2: Remote LIDAR map visualization & Multi-threading
Log from Multi-Domain Depth AI Usecases on the Edge
Using PyRoboViz, I have visualized the 2D LIDAR map in real-time on Pi itself. However, while the visualization is on, the 'read descriptor bytes' from LIDAR occasionally flagged an error while scanning. As a workaround, I have re-routed the real-time...

Protocol suggestions
Log from BARCO NX-4 GROUP REVERSING ADVENTURE
Hi there, As someone who's interested in the "reimplement HDL" option for the tiles - I thought a suitable name might be "OpenNX4" (resisting the temptation to run the two n's together) and had a few thoughts/suggesions to throw out there. For...

This layout could not have gone more beautifully
Log from Gummi Worm Clock
You would expect laying out a board with an RGB seven-segment display would be horrible, right? Nope:That's an ST LED2472G 24-channel LED driver sitting right underneath the RGB seven-segment LED. That's also a lot of planning to get all the LEDs connected...

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