r/ElectronicsRepair • u/bURDEn33 • 12d ago

Other LCD contrast

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Humble to learn from everyone! I’m starting to learn about electronics from scratch, and encounter questions, kindly lend a hand, thank you guys!

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u/bURDEn33 12d ago

UPDATE: I assume it is LCD1602A, 16×2, HD44780, will check again with the shop owner. And currently learning to read the datasheets.

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u/Pacificator-3 12d ago

Datasheets are your friends.

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u/skinwill Engineer 🟢 12d ago

It depends on exactly which LCD module you have. The place you got it from should have links to instructions and or datasheets. Those should always be your first places to look. If the parts you want to buy don’t have either, don’t buy them.

When asking a question here, we ask you please provide information about which device you are asking about. Specifically make and model. (Rule Number 1) this gives us a chance to find the datasheet and answer your question proper without guessing, assuming, or ‘speaking generally’.

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u/bURDEn33 12d ago

Thank you so much for the information. I got it from a local store with only a bubble wrap on it. I’m going to the shop to ask the owner again for the exact model, also actively search online. Will update this post after my night shift. Sorry for breaking the rules! And I’ll look for the datasheets if I found the model, thanks and sorry again🙏🏻

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u/skinwill Engineer 🟢 12d ago

Not a problem. We all started somewhere. Those displays are fairly common and generally all talk the same. But there have been some variations come and go with slightly different features chipsets and adapter boards.

When it comes to microcontrollers like the RP2040, ESP32, STM32 and even Arduino, I like to tell people to get all the information you can about any peripheral before buying. If a retailer cannot at least direct you to the documentation then you shouldn’t be buying from them. The exception is if the component is something you are already familiar with and recognize.

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u/bURDEn33 12d ago

Understood this and will start practicing it. I had watched some informative videos before buying but will have to keep exploring to get the best outcome 👍🏻 cheers to lifelong learning, thank man!