Posts Tagged ‘Raspberry Pi’

Build your very own drink mixing robot

Tuesday, May 9th, 2017 Yu Jiang Tham designed and built his own bartender robot named Bar Mixvah, that is available on Github: I built a robot that mixes drinks named Bar Mixvah.  It utilizes an Arduino microcontroller switching a series of pumps via transistors on the physical layer, and the MEAN stack (MongoDB, Express.js,...

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Posted in 3D Model, Arduino, DIY, tutorials | No Comments »

Raspberry Pi RF frequency counter

Tuesday, October 11th, 2016

A Raspberry PI RF frequency counter project from Scott Harden, that is available on GitHub: Raspberry PI RF Frequency Counter with Python Interface. The RF signal clocks a 32-bit counter (SN74LV8154) connected to a 16-bit IO expander (MCP23017) accessable to the Raspberry Pi (via I²C) to provide real-time frequency measurements from...

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Posted in R-Pi, RF | 3 Comments »

Binary clock

Thursday, October 6th, 2016

Frederick Vandenbosch made a binary clock with Raspberry Pi Zero and Unicorn pHAT. He documented the whole process on his blog: At the center of the project are a PiZero and a Unicorn pHAT. The PiZero fetches the time, converts it to binary and controls the Unicorn pHAT with a...

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Posted in clock, R-Pi | No Comments »

An open source 3D Scanner made with Raspberry Pi

Saturday, July 30th, 2016

Boris Landoni from Open Electronics writes about a new open source 3D Scanner made with Raspberry Pi: This being said, we may move on to talk about our 3D scan approach, that consists in using a linear laser, that is, one capable of drawing a vertical line having a constant luminous intensity, and...

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Posted in 3D fabrication, open source, R-Pi | 6 Comments »

Pi Zero POV

Saturday, July 2nd, 2016

Francesco over at Garage Tech posted a detailed how-to on building a Raspberry Pi Zero POV setup to display text from a file using an LED: The most important part of getting the Pi Zero POV to run smoothly is given by how do you fix the payload of this...

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Posted in R-Pi, tutorials | No Comments »

Using a Bus Pirate to connect to a Raspberry Pi

Tuesday, May 3rd, 2016

Scott Dixon describes on his website how he used the Bus Pirate to connect to a Raspberry Pi: The other day I found myself with a Rasberry Pi that I wanted to use but I had forgotten my FTDI UART cable. What I did have is my Bus Pirate v3.6...

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Posted in Bus Pirate, how-to, R-Pi | No Comments »

Raspberry Pi web server using flask to control GPIOs

Wednesday, April 27th, 2016

Rui Santos from Random Nerd Tutorials writes: In this project you’ll create a standalone web server with a Raspberry Pi that can toggle two LEDs. You can replace those LEDs with any output (like a relay or a transistor). In order to create the web server you will be using...

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Posted in R-Pi, tutorials | No Comments »

BeagleBone Black GPIO Benchmark

Tuesday, April 26th, 2016

Joonas Pihlajamaa from Code and Life writes, " I've previously made a GPIO benchmark of Raspberry Pi 1 and 2, and have always wanted to see how BeagleBone Black would stack against the Pis. I recently got one so the obvious thing to do was to see how fast the...

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Posted in hacks, R-Pi | 4 Comments »

Bringing a vintage telegraph into the digital age

Thursday, April 7th, 2016

Kyle Gabriel writes: I recently inherited a key on board (KOB) telegraph that my late grandfather used to practice Morse code with when he was a kid (Figure 1). A little bit of curiosity of how it would work and a little bit of displeasure from seeing it sit and...

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Posted in hacks | No Comments »

Home automation with Telegram BOT

Tuesday, October 13th, 2015

Luca Dentella has written an article describing how he developed a bot to control his Raspberry Pi via Telegram:  The project I’m going to describe today it’s a sort of proof of concept that will demonstrate the possibility to remote control sensors and actuators (for example a couple of relays) via Telegram....

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Posted in R-Pi | No Comments »

Windows 10 IoT core controlling a Raspberry Pi 2 robot

Friday, August 21st, 2015

Windows 10 IoT Core running a Raspberry Pi 2 robot by Scott Hanselman: Starting with a Raspberry Pi 2, walk through the setup instructions here. You do need to have a Windows 10 today to installing Windows 10 IoT Core but at least it's gotten a lot easier with the...

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Posted in R-Pi, robotics | No Comments »

Raspberry Pi garage door controller

Friday, August 14th, 2015

As a follow up to yesterday’s Raspberry Pi and ARM uC Breakout + DirtyPCBs mini-review post,  hipfan75 has posted the completed Raspberry Pi-based Garage Door controller project: Right now, all of the sensors and actuators are connected to Raspberry Pi GPIOs. At some point I may move them to the...

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Posted in ARM, DIY, R-Pi | No Comments »

Raspberry Pi and ARM uC Breakout + DirtyPCBs mini-review

Thursday, August 13th, 2015

hipfan75 writes: Briefly, it's a Raspberry Pi v1, Model B, Rev2 breakout with an STM32F030 microcontroller connected to the Pi UART, with all GPIOs for both broken out. There are also connectors for an NRF24L01+ module, a 12V boost module, and 315/433 Mhz wireless transmitters. One board will serve as...

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Build a drawbot from two CD drives and a Raspberry Pi

Monday, July 20th, 2015

A DIY plotter build using old CD drives and a Raspberry Pi by Norbert Heinz: The battery powered WLAN plotter shown here is composed of parts from two old optical drives, four H bridges, a servo and a Raspberry Pi. Project info at HomoFaciens site. Via Make. Check out the...

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Posted in DIY, R-Pi | No Comments »

Raspberry Pi Videolooper

Friday, March 27th, 2015

Steven Hickson writes: Introducing videolooper 3.0! This image is compatible with the A,B,B+, and B 2 versions. I have a brand new version of the Raspberry Pi Videolooper that is compatible with the new B V2 and has a bunch of new features that streamline it for easy use. It...

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Posted in R-Pi | No Comments »

Custom DIY RFID smart lock

Monday, March 16th, 2015

In this video Craig demonstrates his custom DIY RFID smart lock project: The goal of this project was to design an inexpensive rfid door lock which could be opened via smart phone, and have all activity logged w/o utilizing any 3rd party servers or cloud hosting. Via Hacked Gadgets. (more…)

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Posted in R-Pi, RFID | No Comments »

8×8 RGB LED array with a Raspberry Pi

Thursday, February 26th, 2015

Bob Davis has been working on an 8x8 RGB LED array with a Raspberry Pi project: I have been working on a book of Raspberry Pi projects. One of the projects is an 8x8 three color LED array. I picked up some more of them on eBay lately and they had a...

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Posted in LEDs, R-Pi | No Comments »

App note: Adding an ADC to the Raspberry Pi

Saturday, February 21st, 2015

  Adding an ADC to the Raspberry Pi app note (PDF!) from  FTDIChip: This application note will show how to connect the RPI-Hub-Module to the Raspberry Pi and install FTDI drivers to control the module. The application note will then explain how the module may be used to read values from an external...

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Posted in app notes | 3 Comments »

Portable VCR Raspberry Pi

Tuesday, January 13th, 2015

MisterM wrote this instructable detailing his 1981 portable VCR Raspberry PI media centre: This is an early '80s Sharp VC-2300H portable VCR that I've converted - it now has a Raspberry Pi at its heart, running the excellent Raspbmc media centre software. Other upgrades include a snazzy arduino-based clock and an...

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Posted in hacks, R-Pi | No Comments »

PCB for Raspberry Pi WH1080 weather station

Thursday, December 18th, 2014

A PCB for Raspberry Pi WH1080 weather station by Andy Ayre of BritishIdeas: Previously I wrote about using a Raspberry Pi to receive 433MHz signals from a WH1080 weather station. This is the mess of wiring I came up with. This worked fine until it stopped. I probably didn’t crimp a wire...

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Posted in PCBs, R-Pi | No Comments »

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Recent Comments

  • KH: Really? They are digital inputs driven by an MCU. The MCU GPIO probably has diode clamps and ESD protection. Have you experienced such failures? Please...
  • KH: Neither. Google "Marco Schweighauser’s 8-bit virtual Javascript CPU" and see the first result. Sounds more like a very limited feature toy CPU.
  • Alan: "8-bit x86 like CPU" - isn't that an 8080, or Z80?
  • Geoff: Is it still Sunday somewhere? If so, yes please.
  • hli: Sunday++