Stirling Engine Tutorial / Plans How To Part 1 of 2 (beta) - YouTube - FrontMotion Firefox.
Controller. Battery Tester Project. Battery Tester Project Using LM3914 IC This objective of this project is to design and build a battery tester that is able to test various types of dry cell and rechargeable battery with a voltage of less than 2V.
Configured as a bar graph battery level indicator, the LM3914 IC from National Semiconductor senses the voltage levels of the battery under test and drives the 10 LEDs to ON or OFF based on the voltage that is detected. The current driving the LEDs is regulated by using the external resistor R1 and hence limiting resistors are not required. The schematic shows the simple connections where the reference voltage at pin 8 of U1 can be adjusted by adjusting the variable resistor VR1.
DisplayPort. DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA).
The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio, USB, and other forms of data.[2] The VESA specification is royalty-free. VESA designed it to replace VGA, DVI, and FPD-Link. Backward compatibility to VGA and DVI by using active adapters, enables users to use DisplayPort fitted video sources without replacing existing display devices. The first version, 1.0, was approved by VESA on May 3, 2006.[3] Version 1.1a was approved on April 2, 2007[4] followed by the current standard 1.2 on December 22, 2009.[5] Overview[edit] DisplayPort is the first display interface to rely on packetized data transmission, a form of digital communication found in other technologies like Ethernet, USB, and PCI Express.
The DisplayPort signal is not compatible with DVI or HDMI. Versions[edit] Few LM317 Voltage regulator circuits that has a lot of applications. Few LM317 voltage regulator circuits Some circuits based on LM317 voltage regulator Few useful circuits using the voltage regulator IC LM317 is shown here.
LM317 is a three terminal voltage regulator IC from National Semiconductors. The IC is capable of delivering up to 1A of output current. Input voltage can be up to 40V and output voltage can be adjusted from 1.2V to 37V. AllPinouts - Connectors, Cables and Adapters Pinouts. Tutorial 1 – 18F4550 Development Hardware setup » PIC18F.COM – Tutorials and Sample Code - FrontMotion Firefox.
Tutorial Goal: Introduce and describe development setup As mentioned in the Introduction, I am going to be working with the following until further notice: PIC18F4550PicKit 2MPLAB IDE V8.00MPASM V5.14 Here is a picture of my setup: Small FAQ: Q: Some of the wires are not as straight as they should be.
Could you fix them? I am using a 5V (1A) DC adapter as a power source. The LED on the top left (with 1KOhm adapter) serves as an ON-light. The PicKit 2 package is an In-Circuit Serial Programmer (ICSP). Unable to find a 6 pin header, I purchased a longer one and cut off 6 pins. I’m not sure where I found the above diagram, but I believe if was some MicroChip PDF. Looking at the 18F4550 datasheet, the corresponding pins are: Vpp (1)Vdd (11)Vss (12)PGD (40)PGC (39) The 18F4550 supports low-voltage programming (using 5V instead of ~11V).
Resistor Color Codes & Component Identification - FrontMotion Firefox. Resistor Color Code Bands& Other Component Identification Resistor Color Code Identification While these codes are most often associated with resistors, then can also apply to capacitors and other components.
The standard color coding method for resistors uses a different color to represent each number 0 to 9: black, brown, red, orange, yellow, green, blue, purple, grey, white. On a 4 band resistor, the first two bands represent the significant digits. On a 5 and 6 band, the first three bands are the significant digits. Alpha-Numeric Code Identification With the sizes of resistors and other components shrinking or changing in shape, it is getting difficult to fit all of the color bands on a resistor. Naming Convention To simplify the writing of large resistor values, the abbreviations K and M are used for one thousand and one million.
The E12 Range These identify a range of resistors that are know as "preferred values". 1.0, 1.2, 1.5, 1.8, 2.2, 2.7, 3.3, 3.9, 4.7, 5.6, 6.8 and 8.2. Electronic - Europa's grootste webwinkel in elektronica en techniek. Bipolar Junction Transistor Animation - FrontMotion Firefox. Using the Animation Start the animation by either clicking Vce ON, which applies a positive voltage to the collector of the transistor, or drag the Vbe slider handle up to increase the voltage applied to the base.
PIC. Aitec - website in opbouw - FrontMotion Firefox. Volume VI - Experiments : Learning Electronics - FrontMotion Firefox. LM317 Learning - Voltage Regulated Power Supply Circuits - FrontMotion Firefox. Controlling Floppy Drive Stepper Motor via Parallel Port - CodeProject® - FrontMotion Firefox. Warning The PC parallel port can be damaged quite easily if you make incorrect connections.
If the parallel port is integrated to the motherboard, repairing a damaged parallel port may be expensive, and in many cases, it is cheaper to replace the whole motherboard than to repair that port. Your safest bet is to buy an inexpensive I/O card which has a parallel port and use it for your experiment. If you manage to damage the parallel port on that card, replacing it will be easy and inexpensive. Disclaimer While every effort has been made to make sure the information in this article is correct, the author cannot be made liable for any damages, whatsoever, for loss relating to use or implementation of this article.
Introduction In this article, we will connect a 3½ inch floppy drive to our computer's parallel port and write a program to control its stepper motor. Basic Stamp Projects - FrontMotion Firefox. Embedded projects from around the web - FrontMotion Firefox. Seradiris Vasilis designed SMS control circuit some time ago.
It allows to control up to 8 devices through relays. He uses an old Ericsson mobile phone model which is connected to AT90S2313(now Attiny2313). Circuit is very easy to build as it requires very few components. To activate on of 8 relays you have to send specific SMS message with device number and ON/OFF command. Source code and firmware is available for download. Read.