3.3 V vs. PCF8814-based "Nokia 1100" LCD?

Started by Ivan Shmakov in sci.electronics.design9 years ago
LCD

I've got a "Nokia 1100" LCD, which (unless I be mistaken) is based on PCF8814, whose digital I/O range is (1.7 .. 3.3) V. The question is:...

I've got a "Nokia 1100" LCD, which (unless I be mistaken) is based on PCF8814, whose digital I/O range is (1.7 .. 3.3) V. The question is: is there an easy and safe way to connect it to an otherwise 3.3 V (+/- some) circuit (as in: one interfacing an SD card, or having an Arduino as its core, etc.)? (Will a few diodes suffice, for instance?) Also, the pinout for the LCD (e. g., ...


Question about LCD contact strips

Started by Jan Panteltje in sci.electronics.design2 months ago 17 replies

Question about LCD contact strips Does anybody know what thsoe strips that make edge contact with small LCDs are called? Looks like I have...

Question about LCD contact strips Does anybody know what thsoe strips that make edge contact with small LCDs are called? Looks like I have some defective one. ------------------PCB || ||


[Semi-OT] Multisync LCD monitors

Started by Phil Hobbs in sci.electronics.design5 years ago 16 replies

Hi, all, My shiny new (to me) HP 89441A has an analogue video output, but none of my LCD monitors can sync to it--one says "out of range" and...

Hi, all, My shiny new (to me) HP 89441A has an analogue video output, but none of my LCD monitors can sync to it--one says "out of range" and the other two just sit there sulking. So I think that its vertical sync is too fast for them. Any recommendations for LCD monitors that can handle Y2K-ish vertical sync rates? Thanks Phil Hobbs -- Dr Philip C D Hobbs Principal Cons...


Canon powershow hs sx50 mirrors the lcd screen when rotated towards viewer.

Started by Anonymous in sci.electronics.design3 years ago 2 replies

I just discovered something weird and something slightly annoying about this camera: This canon powershow hs sx50 mirrors the lcd screen when...

I just discovered something weird and something slightly annoying about this camera: This canon powershow hs sx50 mirrors the lcd screen when it's rotated towards viewer. It's really strange... I proved this by holding up a card with letters on it, when the LCD screen is "bend/twisted/rotated" suddenly the camera will mirror the LCD screen like you are looking in a mirror ?


LCD character size

Started by Anonymous in sci.electronics.design7 months ago 50 replies

We're designing a new rackmount box, basicly a fancy power supply, with an 800x480 4.3" LCD on the front. Roughly...

We're designing a new rackmount box, basicly a fancy power supply, with an 800x480 4.3" LCD on the front. Roughly this: https://www.dropbox.com/s/8ubv5if7cbnsjzn/P940-8_front.jpg?raw=1 Does anyone have an estimate of how many characters X and Y we might use? We'll try to fire it up next week and experiment, but I'd like to start thinking about screen layouts and have no idea about what mi...


LCD "controller" delays

Started by Don Y in sci.electronics.design2 years ago 5 replies

How much state do LCD controllers (as in: "those used in monitors") contain? E.g., does the scaler just rely on a single row (or two)? Said...

How much state do LCD controllers (as in: "those used in monitors") contain? E.g., does the scaler just rely on a single row (or two)? Said another way, what's the delay from input connector (of the monitor) to "visual output" likely to be? And, how much is it likely to vary from model to model, screen geometry to screen geometry, etc.?


7-segment LCD to BCD decoder ?

Started by N_Cook in sci.electronics.design8 years ago 83 replies

Assuming one back-plane to consider , what would be most efficient component-count/least complex discrete/CMOS/74 route , ie not pic/Pi/uC to...

Assuming one back-plane to consider , what would be most efficient component-count/least complex discrete/CMOS/74 route , ie not pic/Pi/uC to firstly convert the ex-oring business to proper levels and then the "mapping", output could be linear per digit rather than bcd. Starting with an off-the-shelf commercial unit where the LCD display is driven off a uC, to give a remotely monitorable ...


Need a handheld enclosure for 16x2 LCD

Started by mpm in sci.electronics.design3 years ago 15 replies

Anybody know of a good source for handheld enclosures to fit a standard 16x2 line backlit LCD display? Preferably one that also has a 9-volt...

Anybody know of a good source for handheld enclosures to fit a standard 16x2 line backlit LCD display? Preferably one that also has a 9-volt battery compartment. Plastic is preferred. (Metal is also OK) And preferably one that comes complete with a bezel. This will be for a generic (temporary-use) handheld-type tester for something that runs on an RS-485 loop. So, a place to put QTY-(1...


Is there life inside of liquid crystal displays ? (LCD wave patterns)

Started by Anonymous in sci.electronics.design3 years ago 3 replies

I just did a high-speed capture of an lcd/vga monitor and it appeared some kind of pattern was showing when the monitor was blinking different...

I just did a high-speed capture of an lcd/vga monitor and it appeared some kind of pattern was showing when the monitor was blinking different colors at rapid speed, though still vertical retraced/synced to it's frequency of 60 hz or so. On the high speed footage it appears there are these wave like almost plasma like patterns... and also ripples can be seen, slightly. What are t


1_Wire display

Started by David Lesher in sci.electronics.design10 months ago 13 replies

I have a request for a remoted LCD display. Having chased available products to no avail, it's time to honor Bob Pease and roll out...

I have a request for a remoted LCD display. Having chased available products to no avail, it's time to honor Bob Pease and roll out the solder. In this specific case, the least parts count approach seems to be 1_Wire as we have that in use already. A {vintage} Dallas/Maxim app note has a reference design: APPLICATION NOTE 3286 1-Wire 8-bit LCD Reference Design Jul 20, 2004


Hi-temp LCD

Started by Don Y in sci.electronics.design2 years ago 6 replies

I've only once spec'd an LCD display in a product. I recall lots of different issues, criteria (transflexive, transmissive, high...

I've only once spec'd an LCD display in a product. I recall lots of different issues, criteria (transflexive, transmissive, high temperature, etc.). But, have largely forgotten most of those issues (IIRC, transmissive/transflexive/reflexive have to do with the treatment of the back of the display) I recall response time was sensitive to excitation voltage and temperature. I don't recall ...


Dropped "Full"-DVI-I vs DVI-D-support-only for GT 1030 is painfull/mistake. (Thx to convertors still interesting though)

Started by Anonymous in sci.electronics.design4 years ago 4 replies

Hello, Right now I am computing on a very nice LCD monitor which has VGA as best connection option. (I tried VGA to VGA cables and DVI to...

Hello, Right now I am computing on a very nice LCD monitor which has VGA as best connection option. (I tried VGA to VGA cables and DVI to VGA cables both work nicely and after the monitor is told to "auto-adjust" the screen becomes crystal clear). The monitor does have some issues displaying this page, it blinks: http://www.lagom.nl/lcd-test/clock_phase.php Not sure if it's a


need datasheet HC40201-B

Started by Ivan Vegvary in sci.electronics.design7 years ago
LCD

picked up a Hyundai HC40201-B LCD display to play with and learn. Would like to hook up to my Arduino. Have had no luck finding a data sheet...

picked up a Hyundai HC40201-B LCD display to play with and learn. Would like to hook up to my Arduino. Have had no luck finding a data sheet on the web, using Google. Any links would be greatly appreciated. Thank you!


Mystery kiosk (?)

Started by Don Y in sci.electronics.design8 months ago 2 replies

Obviously has an LCD display, up top. And, likely a smaller one down low (likely used as a touch panel). The two black circles n either side...

Obviously has an LCD display, up top. And, likely a smaller one down low (likely used as a touch panel). The two black circles n either side of the "touch panel" looked like they might have been speakers of some sort -- but, I notice a pair of (cheap) headphones hanging on a hook at the left (AND RIGHT!!!!) so not so sure about the "speaker" conclusion. No idea as to what that orange th...


Oven problem

Started by Sylvia Else in sci.electronics.design9 months ago 31 replies

My kitchen's electric oven is misbehaving. After it's been on for a while, it can make a buzzing noise, and its LCD (?) flickers. Eventually...

My kitchen's electric oven is misbehaving. After it's been on for a while, it can make a buzzing noise, and its LCD (?) flickers. Eventually it shuts off, resets itself, and restarts with a "Program Cancelled" message. Clearly, its microcontroller knows that it was previously running. This is not like a power-on reset. The buzzing sounds a bit like a relay that's receiving so little ...


Actual LED TVs? do they exist?

Started by Commander Kinsey in sci.electronics.design2 years ago 40 replies

Are any TVs just LED? Or is LED just a backlight to an LCD panel? I thought they'd invented TVs where every dot was a tricolour LED, but I...

Are any TVs just LED? Or is LED just a backlight to an LCD panel? I thought they'd invented TVs where every dot was a tricolour LED, but I can't find any such thing.


Charger recommendations

Started by Andy in sci.electronics.design5 years ago 17 replies

I am looking at the Nitecore D4 Digicharger/Four Channel Universal Smart Battery Charger/LCD Display and GYRFALCON All-44 4 Channel Digital...

I am looking at the Nitecore D4 Digicharger/Four Channel Universal Smart Battery Charger/LCD Display and GYRFALCON All-44 4 Channel Digital Battery Charger. What do you recommend ? I read where 26650 have a higher capacity than 18650s. Andy


markings on XTALs what do they mean?

Started by Johann Klammer in sci.electronics.design1 year ago 24 replies

I have a defective LCD monitor here. It has two xtals inside. HC49 thru hole. they have something printed on the can. Number one: TXC G...

I have a defective LCD monitor here. It has two xtals inside. HC49 thru hole. they have something printed on the can. Number one: TXC G 14.3EF19 Number two: TXC G 20ARG95 It does not match any part numbers on the TXC website. I would like to know f, tolerance and load cap. Thank you.


LCD drivers

Started by John Larkin in sci.electronics.design1 year ago 11 replies

https://www.marketwatch.com/story/the-tiny-1-chip-that-is-behind-record-price-increases-for-comp uters-11623958037?mod=home-page Does anybody...

https://www.marketwatch.com/story/the-tiny-1-chip-that-is-behind-record-price-increases-for-comp uters-11623958037?mod=home-page Does anybody have any FTDI FT800s? Maybe swap for something you need? -- John Larkin Highland Technology, Inc trk The cork popped merrily, and Lord Peter rose to his feet. "Bunter", he said, "I give you a toast. The triumph of Instinct over R


Semi OT: vintage word processing

Started by bitrex in sci.electronics.design4 years ago 35 replies

In junior high, before my family had a "real" computer, I cranked out many a school report on my parent's Panasonic Penwriter word processor....

In junior high, before my family had a "real" computer, I cranked out many a school report on my parent's Panasonic Penwriter word processor. It was like an electronic typewriter with a tiny LCD display for entering text, but instead of a daisy wheel or something it had four color pens controlled by servos and some limited ability to do vector graphics, I remember doing some really nice-...