Instructables: exploring - technology - serial - popular http://www.instructables.com Thu, 23 Mar 2017 13:29:29 PDT BLOX v1.01 PS1 Controller Joysticks with Arduino http://www.instructables.com/id/Extracting-the-PS1-Controller-Joysticks/
PS1 Controller Joysticks with Arduino - More DIY How To Projects]]> https://cdn.instructables.com/FEX/3SWE/GOPINEZ9/FEX3SWEGOPINEZ9.SQUARE2.jpg https://cdn.instructables.com/FEX/3SWE/GOPINEZ9/FEX3SWEGOPINEZ9.SQUARE.jpg https://cdn.instructables.com/FEX/3SWE/GOPINEZ9/FEX3SWEGOPINEZ9.SMALL.jpg Finnio Idea: To take one of my old Playstation 1 controllers and extract the dual thumbstick setup so that it can be easily used in a microcontroller project (in my case: with the Arduino) without extra libraries or drivers that you would need if you want to use the entire controller. Please let me know w...
By: Finnio

Continue Reading »]]>
Thu, 9 Jun 2011 20:47:23 PDT
Display temperature on LCD http://www.instructables.com/id/Display-temperature-on-LCD/
Display temperature on LCD - More DIY How To Projects]]> https://cdn.instructables.com/FHU/50IU/IE7J4CBZ/FHU50IUIE7J4CBZ.SQUARE2.jpg https://cdn.instructables.com/FHU/50IU/IE7J4CBZ/FHU50IUIE7J4CBZ.SQUARE.jpg https://cdn.instructables.com/FHU/50IU/IE7J4CBZ/FHU50IUIE7J4CBZ.SMALL.jpg eliesalame I will bring two projects together in this instructable.I will demonstrate how to measure the temperature using a LM35 temperature sensor and an Arduino then display the temperature on a serial LCD 16X2 in Celsius and Fahrenheit.You can find the initial projects here:http://www.instructables.com/id/...
By: eliesalame

Continue Reading »]]>
Sun, 6 Sep 2015 06:24:02 PDT
The Easiest Arduino High Altitude Balloon Data Logger http://www.instructables.com/id/The-Easiest-Arduino-High-Altitude-Balloon-Data-Log/
The Easiest Arduino High Altitude Balloon Data Logger - More DIY How To Projects]]> https://cdn.instructables.com/F1X/703Q/IZ6C2AXY/F1X703QIZ6C2AXY.SQUARE2.jpg https://cdn.instructables.com/F1X/703Q/IZ6C2AXY/F1X703QIZ6C2AXY.SQUARE.jpg https://cdn.instructables.com/F1X/703Q/IZ6C2AXY/F1X703QIZ6C2AXY.SMALL.jpg Spaceshark Check out our 360 video from space here: High Altitude balloons are effective tools in conducting experiments and measuring data in the stratosphere. A successful launch can cost less than $200 and give insight and video of how our planet functions.For hundreds of years, humans believed the Earth to...
By: Spaceshark

Continue Reading »]]>
Fri, 17 Feb 2017 12:21:47 PST
How to Receive Arduino Sensor-Data on your Android-Smartphone http://www.instructables.com/id/How-to-Receive-Arduino-Sensor-Data-on-Your-Android/
How to Receive Arduino Sensor-Data on your Android-Smartphone - More DIY How To Projects]]> https://cdn.instructables.com/FSB/Z036/IMYUHBO2/FSBZ036IMYUHBO2.SQUARE2.jpg https://cdn.instructables.com/FSB/Z036/IMYUHBO2/FSBZ036IMYUHBO2.SQUARE.jpg https://cdn.instructables.com/FSB/Z036/IMYUHBO2/FSBZ036IMYUHBO2.SMALL.jpg frederikhauke In default the Arduino is not equipped with a display to visualize measuring-data, for example from your temperature or your pressure Sensor. If you want to get the data shown you need a PC, printing the data to the console or mounting a display directly to the Arduino. So there is no simple way to ...
By: frederikhauke

Continue Reading »]]>
Wed, 13 Apr 2016 10:29:16 PDT
Setup Raspberry Pi without Monitor or Keyboard http://www.instructables.com/id/My-Raspberry-Pi-Setup/
Setup Raspberry Pi without Monitor or Keyboard - More DIY How To Projects]]> https://cdn.instructables.com/FRY/GAZ3/IIKOKQL5/FRYGAZ3IIKOKQL5.SQUARE2.jpg https://cdn.instructables.com/FRY/GAZ3/IIKOKQL5/FRYGAZ3IIKOKQL5.SQUARE.jpg https://cdn.instructables.com/FRY/GAZ3/IIKOKQL5/FRYGAZ3IIKOKQL5.SMALL.jpg jeff.cartwright.562 NOOBS requires a monitor, keyboard and mouse, which adds ~$60 (USD) or more in cost. However, once Wi-Fi is working, these devices are no longer needed.Every time I start a new Raspberry Pi project, I lug out the monitor, keyboard and mouse and find a place to set them up. After completing my third ...
By: jeff.cartwright.562

Continue Reading »]]>
Fri, 18 Dec 2015 17:52:58 PST
PC Controlled Bluetooth Robot (With a GUI !) http://www.instructables.com/id/PC-Controlled-Wireless-Bluetooth-Robot-With-a-GUI/
PC Controlled Bluetooth Robot (With a GUI !) - More DIY How To Projects]]> https://cdn.instructables.com/FMI/JQR3/I8UO5SB6/FMIJQR3I8UO5SB6.SQUARE2.jpg https://cdn.instructables.com/FMI/JQR3/I8UO5SB6/FMIJQR3I8UO5SB6.SQUARE.jpg https://cdn.instructables.com/FMI/JQR3/I8UO5SB6/FMIJQR3I8UO5SB6.SMALL.jpg RoyPeer In this Instructable I will show you how to build a robot that is controlled via Bluetooth using a keyboard, has a graphical user interface built with processing that displays the input from the keyboard and actually turns the whole bushiness into a great fun, and It's also economical to build. I've...
By: RoyPeer

Continue Reading »]]>
Thu, 23 Apr 2015 10:16:20 PDT
Kinect controls Arduino wired Servos using Visual Basic 2010 http://www.instructables.com/id/Kinect-controls-Arduino-wired-Servos-using-Visual-/
Kinect controls Arduino wired Servos using Visual Basic 2010 - More DIY How To Projects]]> https://cdn.instructables.com/FFE/CI1N/GWWZSWGM/FFECI1NGWWZSWGM.SQUARE2.jpg https://cdn.instructables.com/FFE/CI1N/GWWZSWGM/FFECI1NGWWZSWGM.SQUARE.jpg https://cdn.instructables.com/FFE/CI1N/GWWZSWGM/FFECI1NGWWZSWGM.SMALL.jpg techbitar UPDATE JAN 2012: This guide is featured on Microsoft's MSDN Channel9 http://channel9.msdn.com/coding4fun/blog/Kinecting-to-Arduino-with-Visual-Basic INTRODUCTION In this project, I use left and right hand movements in Kinect to control the rotation of two servos tied to Arduino Uno, which in turn ...
By: techbitar

Continue Reading »]]>
Sun, 1 Jan 2012 14:05:34 PST
Pyduino, Interfacing Arduino with Python through serial communication http://www.instructables.com/id/Pyduino-Interfacing-Arduino-with-Python-through-se/
Pyduino, Interfacing Arduino with Python through serial communication - More DIY How To Projects]]> https://cdn.instructables.com/FV6/GZ28/I74L8V5D/FV6GZ28I74L8V5D.SQUARE2.jpg https://cdn.instructables.com/FV6/GZ28/I74L8V5D/FV6GZ28I74L8V5D.SQUARE.jpg https://cdn.instructables.com/FV6/GZ28/I74L8V5D/FV6GZ28I74L8V5D.SMALL.jpg poopypigeon Learn how to interface arduino through serial communication with python using the pyduino library. There are few other tutorials out there on instructables on how to interface arduino with python but they don't show you how to do everything, where hopefully this tutorial will give you a foundation f...
By: poopypigeon

Continue Reading »]]>
Wed, 11 Mar 2015 10:05:11 PDT
Reverse Engineering to Emulate Ink Cartridges for a Epson Printer http://www.instructables.com/id/Reverse-Engineering-to-Emulate-Ink-Cartridges-for-/
Reverse Engineering to Emulate Ink Cartridges for a Epson Printer - More DIY How To Projects]]> https://cdn.instructables.com/FBK/HUQQ/GJHV98HH/FBKHUQQGJHV98HH.SQUARE2.jpg https://cdn.instructables.com/FBK/HUQQ/GJHV98HH/FBKHUQQGJHV98HH.SQUARE.jpg https://cdn.instructables.com/FBK/HUQQ/GJHV98HH/FBKHUQQGJHV98HH.SMALL.jpg NZSmartie For the past two years, I’ve been planning to build myself a 3D printer from some old Inkjet printers that I had collected over the years. But not until two weeks ago had I actually started to work on it. The 3D printer I want to made uses a ink jets to print a chemical onto a building platform. Th...
By: NZSmartie

Continue Reading »]]>
Wed, 2 Feb 2011 01:46:04 PST
Arduino Reaction Time Tester http://www.instructables.com/id/Arduino-Reaction-Time-Tester/
Arduino Reaction Time Tester - More DIY How To Projects]]> https://cdn.instructables.com/FP4/3YGZ/HCV9CAZY/FP43YGZHCV9CAZY.SQUARE2.jpg https://cdn.instructables.com/FP4/3YGZ/HCV9CAZY/FP43YGZHCV9CAZY.SQUARE.jpg https://cdn.instructables.com/FP4/3YGZ/HCV9CAZY/FP43YGZHCV9CAZY.SMALL.jpg 86 This is a simple reaction time tester. It will randomly turn on a L.E.D. and measure the time it takes you to press a button and then send the measurement to your computer. Materials Materials Arduino Breadboard USB A to B Cable L.E.D Push Button 10K Resitor Jumper ...
By: 86

Continue Reading »]]>
Sat, 9 Feb 2013 19:11:54 PST
Arduino Bluetooth Master, and Slave Using Any HC-05 Modules http://www.instructables.com/id/Arduino-Bluetooth-Master-and-Slave-Using-Any-HC-05/
Arduino Bluetooth Master, and Slave Using Any HC-05 Modules - More DIY How To Projects]]> https://cdn.instructables.com/FGA/QG0Z/IQ41Y1TJ/FGAQG0ZIQ41Y1TJ.SQUARE2.jpg https://cdn.instructables.com/FGA/QG0Z/IQ41Y1TJ/FGAQG0ZIQ41Y1TJ.SQUARE.jpg https://cdn.instructables.com/FGA/QG0Z/IQ41Y1TJ/FGAQG0ZIQ41Y1TJ.SMALL.jpg Riftliger Do you have HC-05 Blue-Smurf modules already, and have no idea what to do, or are you just looking to be able to connect two arduinos together wirelessly? This is the place to be! This tutorial is meant to cut through all of the confusing tutorials on the internet, and show you how to finally get ...
By: Riftliger

Continue Reading »]]>
Sat, 2 Jul 2016 07:10:22 PDT
Raspberry Pi - Serial Console http://www.instructables.com/id/Raspberry-Pi-Serial-Console/
Raspberry Pi - Serial Console - More DIY How To Projects]]> https://cdn.instructables.com/FM6/XUMX/IDUR15D3/FM6XUMXIDUR15D3.SQUARE2.jpg https://cdn.instructables.com/FM6/XUMX/IDUR15D3/FM6XUMXIDUR15D3.SQUARE.jpg https://cdn.instructables.com/FM6/XUMX/IDUR15D3/FM6XUMXIDUR15D3.SMALL.jpg ThisIsSteve I have been using Raspberry Pi for some time and I'm going to start writing a few projects using the Raspberry Pi. So lets start with getting the serial ready, the serial console is where I write most of the code and I don't use the GUI a lot. For using the serial you will not need any monitor or an...
By: ThisIsSteve

Continue Reading »]]>
Fri, 28 Aug 2015 01:47:18 PDT
Home Automation with HomeGenie http://www.instructables.com/id/Home-Automation-with-HomeGenie/
Home Automation with HomeGenie - More DIY How To Projects]]> https://cdn.instructables.com/FZV/ZAEH/HRKR3CUK/FZVZAEHHRKR3CUK.SQUARE2.jpg https://cdn.instructables.com/FZV/ZAEH/HRKR3CUK/FZVZAEHHRKR3CUK.SQUARE.jpg https://cdn.instructables.com/FZV/ZAEH/HRKR3CUK/FZVZAEHHRKR3CUK.SMALL.jpg mrx23dot So you want to step up your home automation game? Look no further! A lot of us tried home automating by ad-hoc method, now here is a great open source system that gives reliable foundations for your next project.   HomeGenie gives you a web server for PC / Linux / Mac / Raspberry PI (7W!) / a...
By: mrx23dot

Continue Reading »]]>
Sat, 15 Feb 2014 05:57:38 PST
How to connect a serial LCD with an Arduino Nano http://www.instructables.com/id/How-to-connect-a-serial-LCD-with-an-Arduino-Nano/
How to connect a serial LCD with an Arduino Nano - More DIY How To Projects]]> https://cdn.instructables.com/FGT/ZHCK/IFD6L9JU/FGTZHCKIFD6L9JU.SQUARE2.jpg https://cdn.instructables.com/FGT/ZHCK/IFD6L9JU/FGTZHCKIFD6L9JU.SQUARE.jpg https://cdn.instructables.com/FGT/ZHCK/IFD6L9JU/FGTZHCKIFD6L9JU.SMALL.jpg eliesalame In a earlier instructable I demonstrated how to connect the serial LCD to an Arduino UNO http://www.instructables.com/you?show=PUBLISHEDYesterday I wanted to use two Arduinos for an RF project and realized that I don't know how to use the serial LCD with the Arduino Nano. So with a bit of research...
By: eliesalame

Continue Reading »]]>
Mon, 5 Oct 2015 03:07:51 PDT
RC Multi Channel Arduino Proportional Transmitter / Receiver with Button Trimmers http://www.instructables.com/id/RC-Multi-Channel-Arduino-Proportional-Transmitter--1/
RC Multi Channel Arduino Proportional Transmitter / Receiver with Button Trimmers - More DIY How To Projects]]> https://cdn.instructables.com/FCL/49SP/II0OF2UT/FCL49SPII0OF2UT.SQUARE2.jpg https://cdn.instructables.com/FCL/49SP/II0OF2UT/FCL49SPII0OF2UT.SQUARE.jpg https://cdn.instructables.com/FCL/49SP/II0OF2UT/FCL49SPII0OF2UT.SMALL.jpg HobbyTransform Are you looking to make your own quadcopter drone or RC car with Arduino but don't know where to start? Perhaps you already bought some 433MHz RF modules only to find out they weren't as simple to use as you thought? Try this out!You'll learn to wire a simple proportional control transmitter and rec...
By: HobbyTransform

Continue Reading »]]>
Thu, 10 Dec 2015 19:43:33 PST
Lector De Huella Digital Arduino http://www.instructables.com/id/Lector-De-Huella-Digital-Arduino/
Lector De Huella Digital Arduino - More DIY How To Projects]]> https://cdn.instructables.com/FDR/QYYG/IJAA9ADS/FDRQYYGIJAA9ADS.SQUARE2.jpg https://cdn.instructables.com/FDR/QYYG/IJAA9ADS/FDRQYYGIJAA9ADS.SQUARE.jpg https://cdn.instructables.com/FDR/QYYG/IJAA9ADS/FDRQYYGIJAA9ADS.SMALL.jpg HeTPro Lector de huella digital El sensor biométrico de huella digital es ideal para realizar un sistema capaz de proteger lo que tu requieras por medio del análisis de tu huella digital. El sistema realiza procesamiento digital de imágenes interno con un DSP ademas de incluir capacidades de comparación en...
By: HeTPro

Continue Reading »]]>
Mon, 11 Jan 2016 18:09:05 PST
Cisco Console to Null Modem Serial Adapter http://www.instructables.com/id/Cisco-Console-to-Null-Modem-Serial-Adapter/
Cisco Console to Null Modem Serial Adapter - More DIY How To Projects]]> https://cdn.instructables.com/FLZ/AA76/FDIY30AC/FLZAA76FDIY30AC.SQUARE2.jpg https://cdn.instructables.com/FLZ/AA76/FDIY30AC/FLZAA76FDIY30AC.SQUARE.jpg https://cdn.instructables.com/FLZ/AA76/FDIY30AC/FLZAA76FDIY30AC.SMALL.jpg jwilson27 Currently, I am lugging around my USB to Serial cable (since my laptop does not have a serial port), a Cisco console cable, and a null modem cable (for older switches and other equipment). When I work on older equipment, I have to unplug my Cisco console cable, find my null modem cable, and then pl...
By: jwilson27

Continue Reading »]]>
Sat, 8 Mar 2008 20:49:15 PST
Adruino Serial Plotter http://www.instructables.com/id/Ultimate-Guide-to-Adruino-Serial-Plotter/
Adruino Serial Plotter - More DIY How To Projects]]> https://cdn.instructables.com/FU2/TQP1/IKRNIMB8/FU2TQP1IKRNIMB8.SQUARE2.jpg https://cdn.instructables.com/FU2/TQP1/IKRNIMB8/FU2TQP1IKRNIMB8.SQUARE.jpg https://cdn.instructables.com/FU2/TQP1/IKRNIMB8/FU2TQP1IKRNIMB8.SMALL.jpg Jonathanrjpereira The Arduino Serial Plotter function has been added to the Arduino IDE, allowing you to natively graph serial data from your Arduino to your computer in real time. If you’re tired of seeing your Arduino’s analog sensor input data pour onto your screen like The Matrix, this looks like a prettier way t...
By: Jonathanrjpereira

Continue Reading »]]>
Wed, 10 Feb 2016 09:35:55 PST
Overview the Arduino sketch uploading process and ISP http://www.instructables.com/id/Overview-the-Arduino-sketch-uploading-process-and-/
Overview the Arduino sketch uploading process and ISP - More DIY How To Projects]]> https://cdn.instructables.com/FDM/LX81/IC6HTJE9/FDMLX81IC6HTJE9.SQUARE2.jpg https://cdn.instructables.com/FDM/LX81/IC6HTJE9/FDMLX81IC6HTJE9.SQUARE.jpg https://cdn.instructables.com/FDM/LX81/IC6HTJE9/FDMLX81IC6HTJE9.SMALL.jpg dmjlambert You can upload software to an Arduino using two methods. You may hear about the two methods commonly called ISP programming and FTDI or serial upload. I recommend learning about and becoming comfortable with using both methods. When I was getting started with Arduino, I wished for a guide or big ...
By: dmjlambert

Continue Reading »]]>
Fri, 17 Jul 2015 06:47:21 PDT
Arduino EEG http://www.instructables.com/id/Arduino-EEG/
Arduino EEG - More DIY How To Projects]]> https://cdn.instructables.com/FS2/638O/IE2NCNRF/FS2638OIE2NCNRF.SQUARE2.jpg https://cdn.instructables.com/FS2/638O/IE2NCNRF/FS2638OIE2NCNRF.SQUARE.jpg https://cdn.instructables.com/FS2/638O/IE2NCNRF/FS2638OIE2NCNRF.SMALL.jpg Treker2 First:A link for the remix contest:http://m.instructables.com/id/How-to-hack-EEG-toys-with-arduino/Hello instructibles!! I just made something really really cool. Its not quite mind reading but it sure is close! I have made an arduino powered eeg machine, also known as Electroencephalography machine...
By: Treker2

Continue Reading »]]>
Wed, 2 Sep 2015 12:15:53 PDT
Build a Robotic Arm for the Science Olympiad http://www.instructables.com/id/Build-a-Robotic-Arm-for-the-Science-Olympiad/
Build a Robotic Arm for the Science Olympiad - More DIY How To Projects]]> https://cdn.instructables.com/FDC/PC2G/H337K7TT/FDCPC2GH337K7TT.SQUARE2.jpg https://cdn.instructables.com/FDC/PC2G/H337K7TT/FDCPC2GH337K7TT.SQUARE.jpg https://cdn.instructables.com/FDC/PC2G/H337K7TT/FDCPC2GH337K7TT.SMALL.jpg Xellers For those who are struggling to find the right parts, trying to figure out how to put them together, or having difficulty with code, this is the right place! This instructable is a complete documentation of Newton South High School Science Team's 2012 robotic arm entry. It was built by Daniel Kramni...
By: Xellers

Continue Reading »]]>
Mon, 11 Jun 2012 20:52:26 PDT
Using an Arduino to Control or Test an SPI electronic device http://www.instructables.com/id/Using-an-Arduino-to-Control-or-Test-an-SPI-electro/
Using an Arduino to Control or Test an SPI electronic device - More DIY How To Projects]]> https://cdn.instructables.com/FMK/UVOB/GZFUT2AK/FMKUVOBGZFUT2AK.SQUARE2.jpg https://cdn.instructables.com/FMK/UVOB/GZFUT2AK/FMKUVOBGZFUT2AK.SQUARE.jpg https://cdn.instructables.com/FMK/UVOB/GZFUT2AK/FMKUVOBGZFUT2AK.SMALL.jpg saratogadude There are many electronic devices that use the SPI  bus, or Serial Peripheral Interface bus, for communications (e.g. various sensors, LCD displays, digital potentiometers, D/A and A/D converters, wireless transmitters and receivers, audio volume controls).  The devices receive data serially from a ...
By: saratogadude

Continue Reading »]]>
Mon, 5 Mar 2012 13:52:17 PST
Arduino Portable Weather Monitor, altimeter, temperature, humidity, using DHT11 and BMP85 with LCD using only 3 pins http://www.instructables.com/id/Arduino-Portable-Weather-Monitor-DHT11-and-BMP85-w/
Arduino Portable Weather Monitor, altimeter, temperature, humidity, using DHT11 and BMP85 with LCD using only 3 pins - More DIY How To Projects]]> https://cdn.instructables.com/F8J/ZD2I/HOW0IAP4/F8JZD2IHOW0IAP4.SQUARE2.jpg https://cdn.instructables.com/F8J/ZD2I/HOW0IAP4/F8JZD2IHOW0IAP4.SQUARE.jpg https://cdn.instructables.com/F8J/ZD2I/HOW0IAP4/F8JZD2IHOW0IAP4.SMALL.jpg animes25 I did this project because I often climb mountains like the one in the picture and I need to know the altitude, the temperature, and also changes in the weather, sometimes in just minutes the weather get very bad, with hail, snow and a very dense mist. All you need are a DHT11 Sensor, a BMP085 baro...
By: animes25

Continue Reading »]]>
Sun, 8 Dec 2013 20:54:08 PST
Connect the Raspberry Pi to network using UART http://www.instructables.com/id/Connect-the-Raspberry-Pi-to-network-using-UART/
Connect the Raspberry Pi to network using UART - More DIY How To Projects]]> https://cdn.instructables.com/F4L/0SCG/I4CMO86U/F4L0SCGI4CMO86U.SQUARE2.jpg https://cdn.instructables.com/F4L/0SCG/I4CMO86U/F4L0SCGI4CMO86U.SQUARE.jpg https://cdn.instructables.com/F4L/0SCG/I4CMO86U/F4L0SCGI4CMO86U.SMALL.jpg ludeks In this tutorial I will show you how to connect your Raspberry Pi to the Internet just by using its serial line which is accessible on GPIO. This can be very helpful if there is no other means of connection available like ethernet or wifi dongle. The UART serial port is not directly suitable for TC...
By: ludeks

Continue Reading »]]>
Wed, 31 Dec 2014 10:46:58 PST
Serial Communications with Arduino http://www.instructables.com/id/Serial-Communications-with-Arduino/
Serial Communications with Arduino - More DIY How To Projects]]> https://cdn.instructables.com/FWS/KR1E/GUVU1GAH/FWSKR1EGUVU1GAH.SQUARE2.jpg https://cdn.instructables.com/FWS/KR1E/GUVU1GAH/FWSKR1EGUVU1GAH.SQUARE.jpg https://cdn.instructables.com/FWS/KR1E/GUVU1GAH/FWSKR1EGUVU1GAH.SMALL.jpg Chowmix12 At this point you should have a robot that can think on its own, we need to be able to tap into its thought process. See what he sees. Make some of his decisions for him. in essence, we need to be able to guage his intelligence to make him more intelligent and increase his efficiency. With serial co...
By: Chowmix12

Continue Reading »]]>
Sun, 13 Nov 2011 17:49:46 PST
2 cent TTL Level Shifter - connect a 3.3V Pi to 5V TTL serial device or Arduino and more... http://www.instructables.com/id/Pi-Cubed-How-to-connect-a-33V-Raspberry-Pi-to-a-5V/
2 cent TTL Level Shifter - connect a 3.3V Pi to 5V TTL serial device or Arduino and more... - More DIY How To Projects]]> https://cdn.instructables.com/FC0/IPV6/HLFUZFV4/FC0IPV6HLFUZFV4.SQUARE2.jpg https://cdn.instructables.com/FC0/IPV6/HLFUZFV4/FC0IPV6HLFUZFV4.SQUARE.jpg https://cdn.instructables.com/FC0/IPV6/HLFUZFV4/FC0IPV6HLFUZFV4.SMALL.jpg SuperTech-IT I will start out by noting that this instructable pertains only to TTL serial, and not RS232. It should serve well for any 2 devices that you need to have serial communications between that have TTL serial capability. Almost all the popular prototyping boards have TTL serial, but unfortunately, they...
By: SuperTech-IT

Continue Reading »]]>
Thu, 12 Sep 2013 08:31:14 PDT
Raspberry Pi & the Neo 6M GPS http://www.instructables.com/id/Raspberry-Pi-the-Neo-6M-GPS/
Raspberry Pi & the Neo 6M GPS - More DIY How To Projects]]> https://cdn.instructables.com/FCD/8MV3/ICJLZULY/FCD8MV3ICJLZULY.SQUARE2.jpg https://cdn.instructables.com/FCD/8MV3/ICJLZULY/FCD8MV3ICJLZULY.SQUARE.jpg https://cdn.instructables.com/FCD/8MV3/ICJLZULY/FCD8MV3ICJLZULY.SMALL.jpg sspence Previously I built a project where I connected a Neo-6M to an Arduino, but this time around, I wanted to show how to use a GPS with the Raspberry PI. Now there are several USB solutions, and apps that work with them, but I wanted to show how to use a $20 GPS module with a a serial UART, and Python ...
By: sspence

Continue Reading »]]>
Sun, 26 Jul 2015 09:23:22 PDT
Arduino Bluetooth Serial Connections! - I made it at TechShop http://www.instructables.com/id/Arduino-Bluetooth-Serial-Connections-I-made-it-/
Arduino Bluetooth Serial Connections! - I made it at TechShop - More DIY How To Projects]]> https://cdn.instructables.com/FG5/TA8A/H672MV0M/FG5TA8AH672MV0M.SQUARE2.jpg https://cdn.instructables.com/FG5/TA8A/H672MV0M/FG5TA8AH672MV0M.SQUARE.jpg https://cdn.instructables.com/FG5/TA8A/H672MV0M/FG5TA8AH672MV0M.SMALL.jpg madebyjoe This is an introduction on how to setup, make a basic connection, and send data to and from an Arduino using Bluetooth! Bluetooth is great for transmitting data over medium distances and what's more, Arduino just treats it like a serial data connection. This means that we can use the Serial Library...
By: madebyjoe

Continue Reading »]]>
Mon, 10 Sep 2012 12:56:50 PDT
Arduino Bluetooth remote lcd display http://www.instructables.com/id/Arduino-Bluetooth-remote-lcd-display/
Arduino Bluetooth remote lcd display - More DIY How To Projects]]> https://cdn.instructables.com/FTA/WOJM/HW0FUXJK/FTAWOJMHW0FUXJK.SQUARE2.jpg https://cdn.instructables.com/FTA/WOJM/HW0FUXJK/FTAWOJMHW0FUXJK.SQUARE.jpg https://cdn.instructables.com/FTA/WOJM/HW0FUXJK/FTAWOJMHW0FUXJK.SMALL.jpg wouterdoornbos Hello,Today i made a simple but useful remote LCD.What this does? You can connect your phone to the Bluetooth module of your Arduino, enter a text message and it will appear on the Arduino's LCD! The stuff that you need. The stuff you will need:-A breadbord.-A Arduino HC-05 bluetooth module.-A LC...
By: wouterdoornbos

Continue Reading »]]>
Wed, 4 Jun 2014 14:47:09 PDT
How to connect a serial LCD to an Arduino UNO http://www.instructables.com/id/How-to-connect-a-serial-LCD-to-an-Arduino-UNO/
How to connect a serial LCD to an Arduino UNO - More DIY How To Projects]]> https://cdn.instructables.com/F6X/CAZP/IDTAW9UZ/F6XCAZPIDTAW9UZ.SQUARE2.jpg https://cdn.instructables.com/F6X/CAZP/IDTAW9UZ/F6XCAZPIDTAW9UZ.SQUARE.jpg https://cdn.instructables.com/F6X/CAZP/IDTAW9UZ/F6XCAZPIDTAW9UZ.SMALL.jpg eliesalame In this instructable I will show you how I connected a serial LCD 16X2 to an Arduino UNO.There are lots of instructables and tutorials showing you how to connect a regular LCD to an Arduino but not many showing a serial LCD and on my Arduino the PINS to attach the UART pins are hidden. With this in...
By: eliesalame

Continue Reading »]]>
Wed, 26 Aug 2015 16:25:04 PDT
Módulo Serial para Display LCD con Arduino http://www.instructables.com/id/Módulo-Serial-para-Display-LCD-con-Arduino/
Módulo Serial para Display LCD con Arduino - More DIY How To Projects]]> https://cdn.instructables.com/F0B/OIBE/I38SAI9Q/F0BOIBEI38SAI9Q.SQUARE2.jpg https://cdn.instructables.com/F0B/OIBE/I38SAI9Q/F0BOIBEI38SAI9Q.SQUARE.jpg https://cdn.instructables.com/F0B/OIBE/I38SAI9Q/F0BOIBEI38SAI9Q.SMALL.gif ElectroCrea En este tutorial aprenderán como utilizar el Módulo serial I2C para Display LCD.Materiales: Módulo serial I2C para Display LCD Arduino (cualquier tipo de placa funciona) Jumpers macho-hembra Display LCD 16x2 ó 20x4 (ambos funcionan) Solda el modulo serial a tu display LCD Tanto el display LCD ...
By: ElectroCrea

Continue Reading »]]>
Thu, 13 Nov 2014 16:04:14 PST
Easy ATTiny Serial Communication with Tiny AVR Programmer http://www.instructables.com/id/Easy-ATTiny-Serial-Communication-with-Tiny-AVR-Pro/
Easy ATTiny Serial Communication with Tiny AVR Programmer - More DIY How To Projects]]> https://cdn.instructables.com/FIL/LPV7/HL94FXQ3/FILLPV7HL94FXQ3.SQUARE2.jpg https://cdn.instructables.com/FIL/LPV7/HL94FXQ3/FILLPV7HL94FXQ3.SQUARE.jpg https://cdn.instructables.com/FIL/LPV7/HL94FXQ3/FILLPV7HL94FXQ3.SMALL.jpg blorgggg ATTinies (like the ATTiny 85) are super awesome! They are super cheap, low power, and they do what most Arduino projects accomplish anyway (give a simple output or take in a simple input). One difficulty can be quickly seeing what's going on with their internals for easy debugging. The ATTInies can...
By: blorgggg

Continue Reading »]]>
Fri, 6 Sep 2013 11:04:07 PDT
Control Arduino using PHP http://www.instructables.com/id/Control-Arduino-using-PHP/
Control Arduino using PHP - More DIY How To Projects]]> https://cdn.instructables.com/FW7/IA2H/HW8T257O/FW7IA2HHW8T257O.SQUARE2.jpg https://cdn.instructables.com/FW7/IA2H/HW8T257O/FW7IA2HHW8T257O.SQUARE.jpg https://cdn.instructables.com/FW7/IA2H/HW8T257O/FW7IA2HHW8T257O.SMALL.jpg rhbvkleef I have recently seen a lot of problems regarding PHP and Arduino. Many people don't know about facts like that an arduino needs a 2 second (!!!) delay before it can receive any messages through serial. There are a few other facts you need to pay attention to, I will be going over them in this instru...
By: rhbvkleef

Continue Reading »]]>
Tue, 10 Jun 2014 12:47:47 PDT
Turn your CC2541 based HM-10 Bluetooth Smart Module into an iBeacon http://www.instructables.com/id/Turn-your-CC2541-based-HM-10-Bluetooth-Smart-Modul/
Turn your CC2541 based HM-10 Bluetooth Smart Module into an iBeacon - More DIY How To Projects]]> https://cdn.instructables.com/FRW/V9HF/ICRXLRLV/FRWV9HFICRXLRLV.SQUARE2.jpg https://cdn.instructables.com/FRW/V9HF/ICRXLRLV/FRWV9HFICRXLRLV.SQUARE.jpg https://cdn.instructables.com/FRW/V9HF/ICRXLRLV/FRWV9HFICRXLRLV.SMALL.jpg ankitdaf This tutorial walks through the steps for converting an HM-10 Bluetooth Smart (previously known as BLE) module as an iBeacon.( Module image courtesy https://github.com/nickswalker/ble-dev-kit/wiki/HM-10-Pinout ) Solder the module onto a general purpose PCB The first thing you need to do is to sol...
By: ankitdaf

Continue Reading »]]>
Sat, 1 Aug 2015 02:39:03 PDT
How to Make a 9-Pin Serial to Ethernet Cable http://www.instructables.com/id/How-to-Make-a-9-Pin-Serial-to-Ethernet-Cable/
How to Make a 9-Pin Serial to Ethernet Cable - More DIY How To Projects]]> https://cdn.instructables.com/FEK/YHXJ/GU0ZM26X/FEKYHXJGU0ZM26X.SQUARE2.jpg https://cdn.instructables.com/FEK/YHXJ/GU0ZM26X/FEKYHXJGU0ZM26X.SQUARE.jpg https://cdn.instructables.com/FEK/YHXJ/GU0ZM26X/FEKYHXJGU0ZM26X.SMALL.jpg ejfs These instructions will show you how to make a 9-pin serial to Ethernet cable. Serial cables are used to control and configure devices with serial ports. When converting one end to Ethernet, the signal is able to travel farther. When devices are spread out over a large area or placed inconveniently,...
By: ejfs

Continue Reading »]]>
Sat, 22 Oct 2011 00:54:14 PDT
A beginner's guide to Arduino http://www.instructables.com/id/A-Beginners-Guide-to-Arduino/
A beginner's guide to Arduino - More DIY How To Projects]]> https://cdn.instructables.com/F6Q/W5LA/IJSV0SWL/F6QW5LAIJSV0SWL.SQUARE2.jpg https://cdn.instructables.com/F6Q/W5LA/IJSV0SWL/F6QW5LAIJSV0SWL.SQUARE.jpg https://cdn.instructables.com/F6Q/W5LA/IJSV0SWL/F6QW5LAIJSV0SWL.SMALL.jpg tttapa After some years of experimenting with Arduino, I decided that the time has come to share the knowledge I've acquired. So I here it goes, a guide to Arduino, with the bare basics for beginners and some more advanced explanations for people who are somewhat more familiar with electronics.Every step w...
By: tttapa

Continue Reading »]]>
Mon, 25 Jan 2016 04:55:30 PST
Arduino Wireless SD Shield Tutorial http://www.instructables.com/id/Arduino-Wireless-SD-Shield-Tutorial/
Arduino Wireless SD Shield Tutorial - More DIY How To Projects]]> https://cdn.instructables.com/FUU/0IUN/H05NOWJ3/FUU0IUNH05NOWJ3.SQUARE2.jpg https://cdn.instructables.com/FUU/0IUN/H05NOWJ3/FUU0IUNH05NOWJ3.SQUARE.jpg https://cdn.instructables.com/FUU/0IUN/H05NOWJ3/FUU0IUNH05NOWJ3.SMALL.jpg randofo As the name implies, the Arduino Wireless SD shield serves two functions. Foremost, this shield allows you to easily interface with Xbee transceiver modules to create mesh networks, and other wireless devices. Secondly, the micro SD socket allows you to store and access a large amount of data. Wheth...
By: randofo

Continue Reading »]]>
Mon, 26 Mar 2012 13:58:54 PDT
ATtiny85 & ATtiny84 Analog Pins, Serial Communication, etc. http://www.instructables.com/id/ATtiny85-ATtiny84-Analog-Pins-Serial-Communication/
ATtiny85 & ATtiny84 Analog Pins, Serial Communication, etc. - More DIY How To Projects]]> https://cdn.instructables.com/FRC/WAT3/HV9HP7WL/FRCWAT3HV9HP7WL.SQUARE2.jpg https://cdn.instructables.com/FRC/WAT3/HV9HP7WL/FRCWAT3HV9HP7WL.SQUARE.jpg https://cdn.instructables.com/FRC/WAT3/HV9HP7WL/FRCWAT3HV9HP7WL.SMALL.jpg JouleTime I like using an ATtiny84 or ATtiny85 on my projects. They can save a few pennies and make the design a little smaller. The best instruction for setting up these chips to be used with the Arduino IDE is on the MIT, High Low Tech, website http://highlowtech.org/?p=1695. They show you how to wire the ...
By: JouleTime

Continue Reading »]]>
Thu, 15 May 2014 18:02:28 PDT
AVR ISP programmer http://www.instructables.com/id/AVR-ISP-programmer/
AVR ISP programmer - More DIY How To Projects]]> https://cdn.instructables.com/FSO/30SW/HH2VXTDG/FSO30SWHH2VXTDG.SQUARE2.jpg https://cdn.instructables.com/FSO/30SW/HH2VXTDG/FSO30SWHH2VXTDG.SQUARE.jpg https://cdn.instructables.com/FSO/30SW/HH2VXTDG/FSO30SWHH2VXTDG.SMALL.jpg Milen      Making your own DIY Arduino board is interesting and challenging amusement. The biggest complication is always the burning of the bootloader. Such kind of "Catch 22 : http://en.wikipedia.org/wiki/Catch-22_(logic)" acts - you can not program your board through the USB because it is not prelimina...
By: Milen

Continue Reading »]]>
Thu, 30 May 2013 05:17:24 PDT
Mod a USB to TTL Serial Adapter (CP2102) to program Arduino Pro Mini like the FTDI Board with Auto-reset http://www.instructables.com/id/Mod-a-USB-to-TTL-Serial-Adapter-CP2102-to-program-/
Mod a USB to TTL Serial Adapter (CP2102) to program Arduino Pro Mini like the FTDI Board with Auto-reset - More DIY How To Projects]]> https://cdn.instructables.com/FJC/96WY/HZTOA0MZ/FJC96WYHZTOA0MZ.SQUARE2.jpg https://cdn.instructables.com/FJC/96WY/HZTOA0MZ/FJC96WYHZTOA0MZ.SQUARE.jpg https://cdn.instructables.com/FJC/96WY/HZTOA0MZ/FJC96WYHZTOA0MZ.SMALL.jpg Vitim This USB to TTL Serial board based on the CP2102 chip, is readily available on eBay. And it can be used to program the Arduino Pro Mini and others which don't have USB on board. But it's not as convenient as the FTDI board sold by spark fun.The pin out of the USB adapter and the Arduino doesn't matc...
By: Vitim

Continue Reading »]]>
Mon, 8 Sep 2014 14:33:43 PDT
Usb to Serial/TTL adapter http://www.instructables.com/id/Usb-to-SerialTTL-adapter/
Usb to Serial/TTL adapter - More DIY How To Projects]]> https://cdn.instructables.com/F0L/DZH2/HFD1F0NF/F0LDZH2HFD1F0NF.SQUARE2.jpg https://cdn.instructables.com/F0L/DZH2/HFD1F0NF/F0LDZH2HFD1F0NF.SQUARE.jpg https://cdn.instructables.com/F0L/DZH2/HFD1F0NF/F0LDZH2HFD1F0NF.SMALL.jpg verdelj hello guys this is my first post so bear with me. I order a usb to serial adaptor  for $1.78 from ebay and wanted to try and make it work. since there is no information from the seller exept that is based on the PL2303. Since we have no info and no drivers I decided to google and I found a driver th...
By: verdelj

Continue Reading »]]>
Sun, 14 Apr 2013 12:32:20 PDT
Arduino Temperature Sensor Interfacing (LM35) .THE EASIEST WAY http://www.instructables.com/id/Arduino-Temperature-Sensor-Interfacing-LM35-THE-EA/
Arduino Temperature Sensor Interfacing (LM35) .THE EASIEST WAY - More DIY How To Projects]]> https://cdn.instructables.com/FQJ/XJPV/HT36TNGK/FQJXJPVHT36TNGK.SQUARE2.jpg https://cdn.instructables.com/FQJ/XJPV/HT36TNGK/FQJXJPVHT36TNGK.SQUARE.jpg https://cdn.instructables.com/FQJ/XJPV/HT36TNGK/FQJXJPVHT36TNGK.SMALL.jpg Kartik Bholla A simple temperature sensor using one LM35 Precision Temperature Sensor and Arduino. The circuit will send serial information about the temperature that you can use on your computer. Materials You will need :Arduino Uno ( I used the Uno R3 , You can use any other micro controller but for that you...
By: Kartik Bholla

Continue Reading »]]>
Sun, 23 Mar 2014 08:27:07 PDT
ATTiny USI I2C Introduction - A powerful, fast, and convenient communication interface for your ATTiny projects! http://www.instructables.com/id/ATTiny-USI-I2C-The-detailed-in-depth-and-infor/
ATTiny USI I2C Introduction - A powerful, fast, and convenient communication interface for your ATTiny projects! - More DIY How To Projects]]> https://cdn.instructables.com/FF5/8TR4/H54067BM/FF58TR4H54067BM.SQUARE2.jpg https://cdn.instructables.com/FF5/8TR4/H54067BM/FF58TR4H54067BM.SQUARE.jpg https://cdn.instructables.com/FF5/8TR4/H54067BM/FF58TR4H54067BM.SMALL.jpg CalcProgrammer1 I2C, it's a standard that's been around for around 20 years and has found uses in nearly every corner of the electronics universe.  It's an incredibly useful technology for us microcontroller hobbyists but can seem daunting for new users.  This tutorial will solve that problem, first by reviewing wh...
By: CalcProgrammer1

Continue Reading »]]>
Mon, 30 Jul 2012 19:30:58 PDT
Interface Python and Arduino with pySerial http://www.instructables.com/id/Interface-Python-and-Arduino-with-pySerial/
Interface Python and Arduino with pySerial - More DIY How To Projects]]> https://cdn.instructables.com/FA1/KNIO/HAWSI7Z8/FA1KNIOHAWSI7Z8.SQUARE2.jpg https://cdn.instructables.com/FA1/KNIO/HAWSI7Z8/FA1KNIOHAWSI7Z8.SQUARE.jpg https://cdn.instructables.com/FA1/KNIO/HAWSI7Z8/FA1KNIOHAWSI7Z8.SMALL.gif Hammock Boy Over the last few months I have learned how to program with Python. With one of the upcoming projects that I am working on it would be nice to have a computer’s display to view the data collected by a rover in real-time as well as crunch numbers while the rover completes its  mission. The rover will...
By: Hammock Boy

Continue Reading »]]>
Sat, 29 Dec 2012 16:56:53 PST
Adding Custom Graphics to EAGLE PCB Layouts http://www.instructables.com/id/Adding-Custom-Graphics-to-EAGLE-PCB-Layouts/
Adding Custom Graphics to EAGLE PCB Layouts - More DIY How To Projects]]> https://cdn.instructables.com/FQS/GLRS/GB4CYMNG/FQSGLRSGB4CYMNG.SQUARE2.jpg https://cdn.instructables.com/FQS/GLRS/GB4CYMNG/FQSGLRSGB4CYMNG.SQUARE.jpg https://cdn.instructables.com/FQS/GLRS/GB4CYMNG/FQSGLRSGB4CYMNG.SMALL.jpg iobridge The objective of this instructable is to show you how to add custom graphics to a PCB using EAGLE Layout Editor. You might want to add a logo or your website address to an electronics PCB that you have created. I found out that the process of adding images to a PCB was not trivial or obvious. In ord...
By: iobridge

Continue Reading »]]>
Sun, 4 Jul 2010 12:59:33 PDT
Easy ultrasonic 4-pin sensor monitoring (hc-sr04) http://www.instructables.com/id/Easy-ultrasonic-4-pin-sensor-monitoring-hc-sr04/
Easy ultrasonic 4-pin sensor monitoring (hc-sr04) - More DIY How To Projects]]> https://cdn.instructables.com/F90/JYNW/H7UR7RCS/F90JYNWH7UR7RCS.SQUARE2.jpg https://cdn.instructables.com/F90/JYNW/H7UR7RCS/F90JYNWH7UR7RCS.SQUARE.jpg https://cdn.instructables.com/F90/JYNW/H7UR7RCS/F90JYNWH7UR7RCS.SMALL.jpg Giedow hello Instructables, I have had some trouble with my cheap ultrasonic sensor (hc-sr04) and today I found a really easy solution. It is a really simple edit of the normal 3pin code. I added the 4 int's to the beginning of the code, so you can changes the arduino pins very easily. The new code(4pin)...
By: Giedow

Continue Reading »]]>
Thu, 4 Oct 2012 14:46:56 PDT
Obstacle Avoiding Robot http://www.instructables.com/id/Arduino-Ultimate-Obstacle-Avoiding-Robot/
Obstacle Avoiding Robot - More DIY How To Projects]]> https://cdn.instructables.com/FOH/SENN/I5S2FEXR/FOHSENNI5S2FEXR.SQUARE2.jpg https://cdn.instructables.com/FOH/SENN/I5S2FEXR/FOHSENNI5S2FEXR.SQUARE.jpg https://cdn.instructables.com/FOH/SENN/I5S2FEXR/FOHSENNI5S2FEXR.SMALL.jpg RoyPeer This instructable is the written version of my "Arduino: How To Build An Obstacle Avoiding Robot" Youtube video that I've uploaded recently. I strongly recommend you to check it out.So, without further ado, Let's get started ! A chassis ! the first step and the base of any robot is a chassis. ...
By: RoyPeer

Continue Reading »]]>
Thu, 5 Feb 2015 13:15:37 PST
Building a Basic Midi Controller Part 1 - Easy 3 Pot (Potentiometer) Arduino Uno Effects Midi Controller (Serial-USB)... Quick,easy and cheap! http://www.instructables.com/id/Easy-3-Pot-Potentiometer-Arduino-Uno-Effects-Midi-/
Building a Basic Midi Controller Part 1 - Easy 3 Pot (Potentiometer) Arduino Uno Effects Midi Controller (Serial-USB)... Quick,easy and cheap! - More DIY How To Projects]]> https://cdn.instructables.com/FY7/RDIV/I9P1SITE/FY7RDIVI9P1SITE.SQUARE2.jpg https://cdn.instructables.com/FY7/RDIV/I9P1SITE/FY7RDIVI9P1SITE.SQUARE.jpg https://cdn.instructables.com/FY7/RDIV/I9P1SITE/FY7RDIVI9P1SITE.SMALL.jpg APW-Design Hello everyone,I'm relatively new to Arduino and so have been battling my way to make my own midi controllers. There is a huge amount of information dotted around but I couldn't find a simple tutorial for such a simple device; so here it goes.My original intention was to create a mixer similar to th...
By: APW-Design

Continue Reading »]]>
Fri, 15 May 2015 00:15:14 PDT
A Guide to Raspberry Pi Arduino Communication in Embedded Systems http://www.instructables.com/id/A-Guide-to-Raspberry-Pi-Arduino-Communication-in-E/
A Guide to Raspberry Pi Arduino Communication in Embedded Systems - More DIY How To Projects]]> https://cdn.instructables.com/FP3/0SEO/I9NE15MA/FP30SEOI9NE15MA.SQUARE2.jpg https://cdn.instructables.com/FP3/0SEO/I9NE15MA/FP30SEOI9NE15MA.SQUARE.jpg https://cdn.instructables.com/FP3/0SEO/I9NE15MA/FP30SEOI9NE15MA.SMALL.jpg BrianY2 This is a guide to various methods for communications between Raspberry Pi and Arduino. This guide is created from everything I've learned from the creation of a capacities forest. The post of the project can be seen, a video of the project can be seen here, and documentation on the software aspect ...
By: BrianY2

Continue Reading »]]>
Wed, 13 May 2015 20:03:17 PDT
Reading RPM from Arduino-based IR Tachometer with MATLAB GUI http://www.instructables.com/id/Reading-RPM-from-Arduino-based-IR-Tachometer-with-/
Reading RPM from Arduino-based IR Tachometer with MATLAB GUI - More DIY How To Projects]]> https://cdn.instructables.com/FUW/FPTD/I8R6ANXP/FUWFPTDI8R6ANXP.SQUARE2.jpg https://cdn.instructables.com/FUW/FPTD/I8R6ANXP/FUWFPTDI8R6ANXP.SQUARE.jpg https://cdn.instructables.com/FUW/FPTD/I8R6ANXP/FUWFPTDI8R6ANXP.SMALL.jpg pinodisco Hello again, a couple days back I posted an instructable of infrared tachometer using arduino, then I realized that rather than reading the RPM value in the Arduino IDE serial monitor, presenting the RPM in a proper frame would look more hi-tech. So, I tried to make a small program with MATLAB GUI.I...
By: pinodisco

Continue Reading »]]>
Tue, 21 Apr 2015 16:48:47 PDT