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EEVblog #1045 - How To Drive an LCD

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Intermediate. Assumes working knowledge.

115K views8 years ago3 recommendations

HardwareElectronicsEmbedded systems

Dave Jones explains how to drive a static seven-segment LCD display using digital logic and an Arduino.

How to drive a static LCD display with digital logic and an Arduino / microcontroller. Code: github.com/EEVblog/Arduino-Seven-Segment-LCD LCD: digikey.com/products/en?keywords=67-1506-ND Forum: eevblog.com/forum/blog/eevblog-1045-how-to-drive-an-lcd/ EEVblog Main Web Site: eevblog.com The 2nd EEVblog Channel: youtube.com/EEVblog2 Support the EEVblog through Patreon! patreon.com/eevblog Donate With Bitcoin & Other Crypto Currencies! eevblog.com/crypto-currency/ EEVblog Amazon Store (Dave gets a cut): astore.amazon.com/eevblogstore-20 T-Shirts: teespring.com/stores/eevblog 💗 Likecoin – Coins for Likes: likecoin.pro/@eevblog/dil9/hcq3

Why it's here

3 people recommend this

What people say. Recommended for learning how to design and drive segmented LCD displays with microcontrollers.

u/bikeboy7890in r/embedded • Recommends

On “How can I make a screen like this? I have never done any project with screen before.”

If you won't listen to others in the forum, why ask? For information on segmented LCD: Design segment LCD: link to this video Drive segment LCD: link to this video Now if you want to listen to reasonable people, you would buy one of these: https://www.digikey.com/products/en/optoelectronics/display-modules-lcd-oled-graphic/107 Pick one and look on its datasheet for how to drive it. Buy a driver and attache it to your atmel chip. With all that out of the way, it's time to draw graphics. Your choices are to with use an existing graphics library, or roll your own. Out of the existing ones, you have ugui, littlegvl, qt, and others. You can read on how to use those libraries by searching them on the web.
3View on Reddit

u/DesignTwiceCodeOncein r/embedded • Recommends

On “Any good resources to learn to drive an LCD glass using a micro with an onboard LCD controller?”

EEVBlog youtube series: link to this video and link to this video
1View on Reddit

u/Jakeintrein r/embedded • Recommends

Decoding LCD 7 segment display Wanted to post the resources that helped me in this endeavor. There is very little out there. In my case I decoded the display of this torque adapter which uses the MCU of the first datasheet below. Amazon.com: ANPUDS 1/2" Digital Torque Adapter, 7.4-147.5 Ft-lb/10-200 Nm, Digital Torque Wrench Converter with ±1% Accuracy, Preset Value, Data Storage, Buzzer & LED Indicators, 3/8'' & 1/4'' Adapters for Car : Industrial & Scientific || || |BH67F5265\_75v160.pdf| |Direct Reading of LCD Using General Purpose IO : 12 Steps - Instructables| |AVR340: Direct Driving of LCD Using General Purpose IO| |Hacking a Digital Bathroom Scale – scanlime| |[Remoticon 2021 // Jo…
1View on Reddit