Both the HTML checkbox and button on the Arduino hosted web page can switch the LEDs on and off. The physical push button switches can also control the same LEDs. When the physical hardware push button switches are pressed, the states of the LEDs are updated in their corresponding HTML controls on the web page.
Find the details at: http://startingelectronics.org/software/VHDL-CPLD-course/tut19-up-down-counter/ Two VHDL GENERIC values are used to set the maximum count value and the speed of the clock that drives the up/down counter.
Part of the VHDL CPLD course.
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Course Contents
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VHDL CPLD Course Introduction - http://startingelectronics.org/software/VHDL-CPLD-course/
Introduction to VHDL and CPLD Devices - http://startingelectronics.org/software/VHDL-CPLD-course/VHDL-CPLD-introduction/
Tutorial 1: VHDL Inverter and Buffer Code - http://startingelectronics.org/software/VHDL-CPLD-course/tut1-inverter-buffer/
Tutorial 2: AND Gates, OR Gates and Signals in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut2-AND-and-OR-gates/
Tutorial 3: NAND, NOR, XOR and XNOR Gates in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut3-NAND-NOR-XOR-XNOR-gates/
Tutorial 4: Multiplexers in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut4-multiplexers/
Tutorial 5: Decoders in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut5-decoders/
Tutorial 6: Clock Divider in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut6-clock-divider/
Tutorial 7: Binary Counter in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut7-binary-counter/
Tutorial 8: LED Knight Rider Display in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut8-knight-rider-display/
Tutorial 9: S-R Latch in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut9-SR-latch/
Tutorial 10: Gated D Latch in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut10-gated-D-latch/
Tutorial 11: Shift Registers in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut11-shift-register/
Tutorial 12: Ring Counters in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut12_ring_counter/
Tutorial 13: VHDL Data Types and Operators - http://startingelectronics.org/software/VHDL-CPLD-course/tut13-VHDL-data-types-and-operators/
Tutorial 14: Addition in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut14-VHDL-adder/
Tutorial 15: VHDL SPI Receiver / Output Expander - http://startingelectronics.org/software/VHDL-CPLD-course/tut15-VHDL-SPI-receiver/
Tutorial 16: Tri-state Buffers in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut16-tri-state-buffer/
Tutorial 17: Forcing Logic State of Output Pins - http://startingelectronics.org/software/VHDL-CPLD-course/tut17-forcing-pin-states/
Tutorial 18: Routing I/O Signals in VHDL - http://startingelectronics.org/software/VHDL-CPLD-course/tut18-routing-signals/
Tutorial 19: Up/Down Counter in VHDL - http://startingelectronics.org/software/VHDL-CPLD
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https://www.youtube.com/watch?v=VrO_MsdLp1I
Find the details at: http://startingelectronics.org/tutorials/raspberry-PI/multiple-OS-booting/
Three operating systems are installed on a SD card using NOOBS 1.3.9 and a Raspberry PI B+
The following operating systems (OSes) are installed:
Raspbian
RISC OS Pi
Arch Linux
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https://www.youtube.com/watch?v=7LGDJAhNqI0
How to install the Arduino BMP280 pressure sensor library in the Arduino IDE. GY-BMP280-3.3 Pressure Sensor Module Arduino Tutorial: https://startingelectronics.org/tutorials/arduino/modules/pressure-sensor/
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https://www.youtube.com/watch?v=-glJ6xTZXUA
Find the circuit diagram at: http://startingelectronics.org/beginners/circuits/op-amp-oscillator/
Another easy circuit for beginners in electronics. The 741 op-amp is used as an oscillator to flash an LED on and off.
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https://www.youtube.com/watch?v=2PdWvgeTDm0
Part 15 of the Arduino programming course: http://startingelectronics.org/software/arduino/learn-to-program-course/15-functions/
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https://www.youtube.com/watch?v=HBmrEkqQ4Ds
An LED is switched on and off using a web page checkbox control. Find the details at: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/web-server-LED-control/
Part of an Arduino Ethernet shield web server tutorial series. The first part of the tutorial can be found here: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/
The first four parts of the tutorial do not have corresponding videos.
See the related video on controlling two LEDs from a web page: http://youtu.be/fAX-NTsIzas
Tutorial Contents:
Part 1 - Introduction: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/
Part 2 - Basic Arduino Web Server: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/basic-web-server/
Part 3 - Web Page Structure (HTML): http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/web-page-structure/
Part 4 - Arduino SD Card Web Server: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/SD-card-web-server/
Part 5 - Arduino Web Server LED Control: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/web-server-LED-control/
Part 6 - Reading Switch State using an Arduino Web Server: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/web-server-read-switch/
Part 7 - Arduino Web Server Switch Status Using AJAX Manually: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/web-server-read-switch-using-AJAX/
Part 8 - Reading Switch Status Automatically using AJAX on the Arduino Web Server: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/web-server-read-switch-automatically-using-AJAX/
Part 9 - Analog Inputs and Switches using AJAX: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/AJAX-read-switches-analog/
Part 10 - Linking Pages: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/SD-card-web-server-links/
Part 11 - Displaying Images: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/SD-card-web-server-image/
Part 12 - CSS Introduction: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/CSS-introduction/
Part 13 - Ajax Web Server: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/SD-card-AJAX-web-server/
Part 14 - Arduino Inputs using Ajax with XML: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-server-tutorial/SD-card-AJAX-XML-web-server/
Part 15 - Gauge Displaying Analog Value: http://startingelectronics.org/tutorials/arduino/ethernet-shield-web-
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https://www.youtube.com/watch?v=RULB8FfNxKU
The button is pressed to "throw" the dice. LEDs are numbered 1 to 6 from left to right. After releasing the button, the LED that is lit is the number that was thrown. Find the tutorial and circuit diagram at: http://startingelectronics.org/beginners/start-electronics-now/tut17-electronic-dice
Part of a series of 20 electronics and Arduino tutorials for beginners at: http://startingelectronics.org/beginners/start-electronics-now
The Starting Electronics website contains information on how to start electronics as a hobby: http://startingelectronics.org/beginners
Part of the beginner's electronics course:
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Course Contents
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Start Electronics Now! - http://startingelectronics.org/beginners/start-electronics-now/
Beginner's Tools - http://startingelectronics.org/beginners/start-electronics-now/beginners-tools/
Beginner's Components - http://startingelectronics.org/beginners/start-electronics-now/beginners-components/
Beginner's Shopping List - http://startingelectronics.org/beginners/start-electronics-now/beginners-shopping-list/
Tutorial 1: Building a Circuit on Breadboard - http://startingelectronics.org/beginners/start-electronics-now/tut1-breadboard-circuits/
Tutorial 2: Transistor Timer Circuit - http://startingelectronics.org/beginners/start-electronics-now/tut2-transistor-timer/
Tutorial 3: Starting with Arduino - http://startingelectronics.org/beginners/start-electronics-now/tut3-starting-with-arduino/
Tutorial 4: Arduino Knight Rider - http://startingelectronics.org/beginners/start-electronics-now/tut4-arduino-knight-rider/
Tutorial 5: 555 LED Flasher - http://startingelectronics.org/beginners/start-electronics-now/tut5-555-LED-flasher/
Tutorial 6: Rising Pitch Siren - http://startingelectronics.org/beginners/start-electronics-now/tut6-rising-pitch-siren/
Tutorial 7: Arduino Melody - http://startingelectronics.org/beginners/start-electronics-now/tut7-arduino-melody/
Tutorial 8: Dual LED Flasher - http://startingelectronics.org/beginners/start-electronics-now/tut8-dual-LED-flasher/
Tutorial 9: Using the Arduino Serial Port - http://startingelectronics.org/beginners/start-electronics-now/tut9-using-the-arduino-serial-port/
Tutorial 10: Ten Arduino Projects for Absolute Beginners - http://startingelectronics.org/beginners/start-electronics-now/tut10-ten-arduino-projects-for-absolute-beginners/
Tutorial 11: Light Activated Alarm - http://startingelectronics.org/beginners/start-electronics-now/tut11-light-activated-alarm/
Tutorial 12: Arduino LCD - http://startingelectronics.org/beginners/start-electronics-now/tut12-arduino-LCD/
Tutorial 13: Wailing Siren - http://startingelectronics.org/beginners/start-electronics-now/tut13-555-wailing-siren/
Tutorial 14: Arduino LCD Thermometer - http://startingele
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https://www.youtube.com/watch?v=OA07P_l0vOA
Code and details: http://blog.startingelectronics.com/a-simple-button-for-processing-language-code/
A very simple button for use in the Processing language https://processing.org/ Add the button class to a sketch and use it to place buttons in the application window. A simple button for beginner programmers.
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https://www.youtube.com/watch?v=iJHvb0ylZg8