background preloader


Facebook Twitter

Somabar: Robotic Bartender for your Home by Somabar. Arduino Drink Dispenser Turns Quarters into Liquid Courage. Ever feel the need to have your very own alcohol vending machine at home?

Arduino Drink Dispenser Turns Quarters into Liquid Courage

Well if you do, [Ben] and [Dan] have just the Arduino based machine for you! It was actually part of a school assignment for product design at Brunel University – the whole thing was designed and built in just over a week. The machine accepts and counts coins giving you a total readout on the LCD screen. When the correct amount is inserted you can select your shot and the machine will pour you a stiff one.

The thing we like about this vending machine — we’re not sure if it actually qualifies as a barbot — is that it doesn’t have any fancy pumps. It sounds like they’re considering commercializing it, but we can see quite a few problems with a machine that will accept coins from anyone and pour out a drink. LibraryTutorial. Learning Examples | Foundations | Hacking | Links This document explains how to create a library for Arduino.


It starts with a sketch for flashing Morse code and explains how to convert its functions into a library. This allows other people to easily use the code that you've written and to easily update it as you improve the library. LCD Tutorial for interfacing with Microcontrollers: CGRAM Creating custom character. As already explained, all character based LCD of type HD44780 has CGRAM area to create user defined patterns.

LCD Tutorial for interfacing with Microcontrollers: CGRAM Creating custom character

For making custom patterns we need to write values to the CGRAM area defining which pixel to glow. OLED Displays from Winstar [Archive] - PICAXE Forum. View Full Version : OLED Displays from Winstar I've been waiting for a company to eventually release a character LCD but using OLED and have just found that Winstar have done it - See I love the clean look of OLED over backlit LCD.

OLED Displays from Winstar [Archive] - PICAXE Forum

However can I assume that Phandersons #107 driver chip would not work on the character type OLED display since this is OLED, not LCD? Alternatively, I wouldn't mind trying out the Graphic OLED but does anyone have any ideas on what driver IC (if I have to use one at all) would I use to interface with it? Their website states that the displays have a built-in driver but I can't figure out what else I'd need to interface with the displays. Sure-Wood Forest Products 1/2 in. x 2 in. x 4 ft. Oak Hobby Board-OKRED1/2X24-3PL at The Home Depot. 1-1/2 in. x 1-1/2 in. x 2.5 ft.Oak Hobby Board-O BD20203 at The Home Depot. Carr. Building a clock based on Arduino. Int SER_Pin = 8; //connects to pin 14 on the 75HC595 int RCLK_Pin = 9; //connects to pin 12 on the 75HC595 int SRCLK_Pin = 10; //connects to pin 11 on the 75HC595 const int number_of_74hc595s = 3; const int number_of_register_pins = number_of_74hc595s * 8; boolean registers[number_of_register_pins]; //Mapping of LED order to serial converter pins.

Building a clock based on Arduino

Carr - Chemical-Resistant Type I PVC Rectangular Tube, 1" Square, .078" Wall Thickness, 5' Length. Please create a password to access your information.

Carr - Chemical-Resistant Type I PVC Rectangular Tube, 1" Square, .078" Wall Thickness, 5' Length

Click on the Create Password button below and we will send an e-mail to the address we have on file for you. Drink Recipes. Food and Drink SQL database dumps. KegDuino – Arduino meets Kegerator. Step #2: Connect the solenoid PrevNext The TIP120 left prong (facing the transistor) goes through a 10K resistor into the Arduino's Digital 2.

KegDuino – Arduino meets Kegerator

The TIP120 middle prong connects the 1N4004 to the +12V line. The middle prong also connects to the - side of the solenoid. The TIP120 right prong goes to ground. The + side of the solenoid goes directly into the +12V line. Step #3: Connect the flow meter Yellow goes to Arduino Digital 3, red to +5v, black to common ground. Step #4: Connect the temperature sensor, ground the Arduino, and modify the sd card file. Eshopps AEO19005 U-Tubes for Aquarium Water Pump, 1-1/4-Inch: Pet Supplies. EA SER408-NLED ELECTRONIC ASSEMBLY. C++ - Dynamic memory allocation to char array.


Hardcoded strings and PSTR. » Saving RAM space JeeLabs. [TUT] [C] GCC and the PROGMEM Attribute. Memories of an Arduino. SRAM is the most precious memory commodity on the Arduino.

Memories of an Arduino

Although SRAM shortages are probably the most common memory problems on the Arduino. They are also the hardest to diagnose. If your program is failing in an otherwise inexplicable fashion, the chances are good you have crashed the stack due to a SRAM shortage. Your shopping cart at Automation 4 Less, the online superstore for automation products.

502 recipe. Drinks I Can Make with What I Have - Drink Studio cocktail recipes. Custom Character Generator for HD44780 LCD Modules. Helping Tech Companies Succeed through Business Development - Pittsburgh Tech Council. Microcontroller Projects: Custom Character Generations on 16x2 char lcd. Most of the alpha numeric LCD like 16x2 char or 16x4 char have ability to generate few custom characters. in this example i will show you how to make and display these custom characters on a 16x2 char lcd with Hitachi HD44780 lcd controller.

Microcontroller Projects: Custom Character Generations on 16x2 char lcd

HD44780 LCD can have upto 8 custom characters. CG ROM : this the memory which holds the permanent fonts you call to be displayed . this holds the pattern for every single character of predefined lcd font. and you call the content of this memory by the placeing corresponding ascii value on the lcd port . like for retrieval of 'A' you have to send the ascii value of 'A' which is 0x41 to the lcd. CGROM can also be seen as computer hard drive from where you load your required program into ram to start working. but it is not modify able because it's rom. the address of cg ram is totally depends on the size of the lcd like for.

SN74HC595N - TEXAS INSTRUMENTS - IC, 8BIT SIPO SHIFT REGISTER, DIP-16. Skip to main content Shopping Cart: $0.00 (0 items) Choose Country Americas Brazil (Português)CanadaMexico (Español)United States Europe.


Initializing Array of Structure : C Programming. Initializing Array of Structure in C Programming Array elements are stored in consecutive memory Location.Like Array , Array of Structure can be initialized at compile time. Way1 : Initializing After Declaring Structure Array : struct Book { char bname[20]; int pages; char author[20]; float price; }b1[3] = { {"Let us C",700,"YPK",300.00}, {"Wings of Fire",500,"APJ Abdul Kalam",350.00}, {"Complete C",1200,"Herbt Schildt",450.00} }; Explanation : As soon as after declaration of structure we initialize structure with the pre-defined values. Using the Power MOSFET as a Switch - MOSFET Switching. The MOSFET as a Switch We saw previously, that the N-channel, Enhancement-mode MOSFET operates using a positive input voltage and has an extremely high input resistance (almost infinite) making it possible to interface with nearly any logic gate or driver capable of producing a positive output.

Also, due to this very high input (Gate) resistance we can parallel together many different MOSFETs until we achieve the current handling limit required. While connecting together various MOSFETs in parallel may enable us to switch high currents or high voltage loads, doing so becomes expensive and impractical in both components and circuit board space. To overcome this problem Power Field Effect Transistors or Power FET’s were developed.


Inspiration. G1/2 Electric Solenoid Valve (Normally Closed) [SWT133B2B] - $8.50. Yannick JOST | 2013-10-17 What are the dimensions of this product ? Is the inlet filter removable? Is the inlet filter removable so that small particles are not held inside the valve? Thanks. Chaim Krause | 2013-06-12. Ideas Not used. Drinkbot) solenoid.