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20 Sep 2011

Nyan Cat – Driving an ‘Adafruit ST7565 Negative LCD Display’ with a Netduino… Fabien writes – [via]

I have been waiting for an excuse to use a Nyan Cat in a blog post and the ‘ST7565 Negative LCD Display’ released by Adafruit being equipped with RGB LED backlights was the perfect occasion. After all, RGB LEDs can create a ‘rainbow’, right? All that’s needed is a cat to go with it and Voila!

Nyan Cat – Driving an ‘Adafruit ST7565 Negative LCD Display’ with a Netduino - [Link]

16 Sep 2011

Cover for Standard 16×2 LCD Module by Bradley @ Thingiverse. [via]

This is a cover/enclosure for a standard 16×2 HD44780 LCD Module, such as this one: adafruit.com/products/181. These 16×2 LCD Modules are great for various projects and come in a variety of display colors.

I needed one for the LCD display on my Ultimaker, so I designed this one using Alibre Design. It even has an handy extra cutout in the side to accommodate a potentiometer for controlling the LCD display contrast.

Print a cover for standard 16×2 LCD module by Bradley - [Link]

15 Sep 2011

adafruit.com writes:

We’ve updated our excellent character LCD tutorial to include a section about RGB-backlit LCDs, with wiring images, video and example code!

Arduino Tutorial – connecting a parallel LCD - [Link]

7 Sep 2011

Using VFD display with Arduino – [via]

Summer of 2010 I picked up an Arduino board from adafruit and took some time to walk through all of the tutorials available with it. Since then I have spent most of my time on other projects including my bachelor’s. Recently I have obtained the Motor Party Pack, LoL Shield Kit, and a 20×2 VFD (Vacuum Fluorescent Display) to go with the original board so my interest is sparked again. I have found that the Motor Party Pack and LoL Shield have adequate instruction and tutorials, but the VFD is lacking in beginner level instructions to get started. As such I have decided to write a tutorial for the 20×2 VFD available through adafruit.

The adafruit VFD is made by Samsung and is model No. 20T202DA2JA, this is really unimportant though as adafruit is nice enough to link you to the spec sheets for both the module and the controller chip. What you would be looking for is the pin-out found on page 4 of the module controller sheet.

Using VFD display with Arduino - [Link]


7 Sep 2011

Check out this Sharp “Memory LCD”

Memory LCD Technology
Display technology advances such as LED backlighting have dramatically changed the game of LCD power consumption. However, the power requirements of some conventional LCDs can still be high enough to limit their usage pattern or usage environment.

The industry’s first incarnation of memory LCD technology yielded cholesteric, electrophoretic, and other bi-stable technologies. However, these types of displays require relatively high driving voltages and considerable time to respond, in some cases requiring most of a second to update display images. They are also extremely limited in the amount of content they can display at one time.

Electrophoretic displays have also been known to experience image retention. Some current display technologies eliminate this possibility by designing a display to update twice. The first update is with a negative image to completely switch states in the display, and the second update is with the new positive image. Thus, the true update (or “refresh”) rate in a typical application of this type may actually be twice that which is stated in its specifications. Due to this, even though electrophoretic displays do deliver energy savings when holding state, power drain during image updates is a real concern. Read the rest of this entry »

22 Aug 2011

tehnikservice.net writes:

Today we have repaired a LCD Monitor Samsung with model no: 940NW, came with symptoms that will not to turn on and the led is blinking.

I opened it and saw that the electrolytes in the position C109 (1000uF/25V) ,C110 (1000uF/25V) and C113 (820uF/25V) are cracked and then I replaced them..

Repairing LCD Monitor Samsung 940NW - [Link]

3 Aug 2011

Today we have repaired the Samsung LCD monitor with model no: 943NW , he come with symptoms that monitor off after 2 seconds.

I opened it and saw that the electrolyte (100uF/400v) cracked, then I replaced the new capacitor, but the problem is still here, the monitor turns off after 2 seconds, I tried the other new CCFL lamps but now shuts down after 30 sec, in that period as the monitor for i felt that the inverter transformer smell the melted plastic.

Repairing LCD Monitor Samsung 943NW – [Link]

21 Jul 2011

 

Tic Tac Touch @ The Custom Geek… [via]

OK, so I haven’t posted in a while because I have been working on some bigger projects, but yesterday, I took a two hour break and made a 2 player tic tac toe game. I did this with an Arduino and a 2.8″ touchshield from Adafruit.com. It’s pretty basic tic tac toe, and has score tracking, game logic (you can’t go twice in a row, and telling you if you win), and the ability to consume a chunk of time playing tic tac toe with my son. Below is the code, feel free to hack modify etc. If you play against a smart person (or yourself), you will have lots of Mosfet eye games!

Tic Tac Touch - [Link]

3 Jul 2011

follower presents his project using a USB accessory to create a “dual screen” Nexus One with SMS notification & time display. Besides the Nexus One phone, the hardware consists of an Arduino Duemilanove with ATmega328, a SparkFun USB Host Shield and 2×16 LCD display. This hack is made possible by Android’s Open Accessory API. [via]

The sketch listens for bytes sent over the USB connection and displays them on the LCD–it special-cases two values to determine which row of the display text should be displayed on.

The Android App is invisible and starts automatically when you connect the accessory. (You probably need to approve the running of the application within a few seconds or the accessory may time out.) A background service is started which displays a notification of the accessory found, listens for new text messages and starts sending the current time to the accessory for display. You can use your phone as normal while the service is running in the background.

When the accessory is disconnected the notification is removed and the background service cleans up after itself before stopping.

Full source code and further details are available at follower’s labradoc webpage.

Dual-screen Nexus One – [Link]

29 Jun 2011

civicbynature writes -

Thanks to jersagfast @ TheCustomGeek. He wrote an awesome menu program for adafruits 2.8tft breakout board. It has 5 different menu areas as well as a settings area for backlight brightness and sleep timers which saves the settings to EEPROM so the settings are saved even when there’s no power. Plus many more features. I have added many updates. It is now both UNO and Mega 1280/2560. compatible.

I have also added the ability to read actual Vcc voltages at the core using the Bandgap method For accurate voltage readings and sensor readings. And more. If you’d like to check out the latest code it’s available Here on my site.

Cool 2.8″ TFT Touch project… - [Link]



 
 
 

 

 

 

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