Maybe an alternative to small OLED displays on equipment

Started by Jan Panteltje in sci.electronics.design4 months ago 4 replies

Maybe an alternative to small OLED displays on equipment https://www.tomshardware.com/reviews/pimoroni-tufty-2040 so this is an LCD... no burn...

Maybe an alternative to small OLED displays on equipment https://www.tomshardware.com/reviews/pimoroni-tufty-2040 so this is an LCD... no burn in? out of stock ATM of course... I like it


Increasing EL inverter drive power

Started by bitrex in sci.electronics.design3 years ago 8 replies

Not sure if the EL material I have available is less efficient than how it used to be back in the day, but this inverter circuit: Can't...

Not sure if the EL material I have available is less efficient than how it used to be back in the day, but this inverter circuit: Can't drive some replacement EL material (the material tends to itself fade out with time) I've put under the LCD display to very decent brightness. It's too dim under room lighting. Power is 5V supplied bottom right, I'm ass


Photon counting w/ APD's

Started by George Herold in sci.electronics.design5 years ago 14 replies

This is a bit of a shot in the dark, but I wonder if anyone has used 'garden variety' APD (Avalanche Photodiodes) in the photon counting mode...

This is a bit of a shot in the dark, but I wonder if anyone has used 'garden variety' APD (Avalanche Photodiodes) in the photon counting mode where they are biased above their breakdown voltage? I just got a quote on some of these, https://www.lasercomponents.com/fileadmin/user_upload/home/Datasheets/lcd/sar-series.pdf The difference between the SAR and SARP looks mostly to be the noise ...


OT: Where To Dell Replacement Screen

Started by D from BC in sci.electronics.design13 years ago 18 replies
LCD

I've been clicking around and around.. I can't find out where to get a 24" Dell LCD monitor screen replacement. Per chance anyone know where...

I've been clicking around and around.. I can't find out where to get a 24" Dell LCD monitor screen replacement. Per chance anyone know where to go for Dell parts. Or.. is this going to be one of those things where the replacement part is as expensive as the whole monitor?


Methods for improving 60kHz RF signal (WWVB)?

Started by Frnak McKenney in sci.electronics.design9 years ago 43 replies
LCD

I have two "atomic clocks": one is a La Crosse LCD unit, the other an "analog" wall clock whose hands are driven by a WWVB-sync...

I have two "atomic clocks": one is a La Crosse LCD unit, the other an "analog" wall clock whose hands are driven by a WWVB-sync 1xAA-powered mechanism. Following the recent "let's screw with everybody's clocks" cycle neither of my "atomic clocks" caught it, and I was reminded that I was Going To Fix This Problem last time. And the time before... After some years I've discovered t


Microscope Review

Started by ehsjr in sci.electronics.design3 years ago 44 replies

The review: Buy...

The review: Buy it! https://www.banggood.com/G600-Digital-1-600X-3_6MP-4_3inch-HD-LCD-Display-Microscope-Continuous- Magnifier-Upgrade-Version-p-1152799.html?gmcCountry=US¤cy=USD&createTmp=1&utm_source=googl eshopping&utm_medium=cpc_elc&utm_content=frank&utm_campaign=pla-mix-us-pc-0626&gclid=EAIaIQobChM Is4aS4eSb6AIVEGKGCh2gIQYAEAQYASABEgJnQfD_BwE&cur_warehouse=CN Or Google Mustool G6


HDMI in US and in EU

Started by Cameo in sci.electronics.design3 years ago 79 replies

On my recent move to Europe I also shipped an older Samsung LCD monitor that I've been using as an external display with my laptop, using HDMI...

On my recent move to Europe I also shipped an older Samsung LCD monitor that I've been using as an external display with my laptop, using HDMI connection. I also used it as a TV display via another HDMI connection to a set top box. It was a very convenient setup, needing only a switch of the video source. I figured I could use that monitor in Europe, as HDMI standards should be the sa...


AD9851 output amplitude

Started by Clifford Heath in sci.electronics.design5 years ago 23 replies

I'm building a sweeper/scalar analyser using an Arduino with touchscreen LCD, AD9851 and AD8307. This is reasonably well-trodden ground (except...

I'm building a sweeper/scalar analyser using an Arduino with touchscreen LCD, AD9851 and AD8307. This is reasonably well-trodden ground (except for the touchscreen). So I'm surprised to find very few comments abut the AD9851 output amplitude dropping off at higher frequencies. I have it programmed to 20mA-ish output current, using a 2k2 resister. I'm using a module that has the same output...


Fast OCR over raspberry or some other board

Started by gm in sci.electronics.design7 years ago 7 replies
LCD

Hi ! I want to read data from one LCD graphics display ( 2x16 ) and send this data over LAN to one end device. Now, the main problem is...

Hi ! I want to read data from one LCD graphics display ( 2x16 ) and send this data over LAN to one end device. Now, the main problem is OCR data processing because this should be quite fast. The text on the display will stay the same ,most of the time, but when new message arrives, it should be read and processed under 5 seconds. Is something like this doable with some raspberry,...


Soldering iron tip name

Started by bitrex in sci.electronics.design2 years ago 3 replies

I have a couple Rat Shack 60 watt temp-controlled LCD-display soldering stations: They're actually pretty nice and work well. The irons...

I have a couple Rat Shack 60 watt temp-controlled LCD-display soldering stations: They're actually pretty nice and work well. The irons take a replacement 4-wire heater that's readily available fro Amazon. They take an odd tip though, it's not a Weller external screw-bas


Ambient Power Module

Started by David White in sci.electronics.design11 years ago 13 replies
LCD

I am trying an experiment using the circuit below to power a 3V LCD digital...

I am trying an experiment using the circuit below to power a 3V LCD digital clock. http://www.4shared.com/photo/WdTFliAW/Ambient-power.html The antenna is connected to one of the purlins of my metal garage. The ground is connected to the 110V wall socket ground pin. However, the caps charge up MUCH better when I simply hold the ground wire from the module in my hand, eg. 3 or 4VDC th...