TM1637 LED Display Interfaced Using STM32 Microcontroller

In this Tutorial, TM1637 LED driver is interfaced using STM32 microcontroller. The steps of building the interface from scratch and the used hardware are explained in details.
All codes and documents are shared in the link below.github.com/Use...

[@marcingoab9144]

Too many people downloaded some library instead of watching this. I decided to use this video as a basis to create my own first driver for STM8. I even gave a table of truth to fill up to my wife as a puzzle and she had a bit of fun. Many thanks for the video.

[@joelstyer5792]

Nicely done. I watch a lot of electronics video just for fun to see how other people handle things and this has been the only one on the TM1637 that makes sense and is a logical approach to STM32 interfacing. I haven't sued the TM1637 yet but plan to just play with it sometime. I generally do my own display boards with HC595 or LV595 chips. Everything you explained is very close to how I would have approached driving the chip. And the explanation was clear and concise without being boring. I am impressed.

[@usefulelectronics]

Thank you for the awesome feedback. I am happy that you find my content useful

[@freedomwatcherKV]

thanks for library man!

[@JSC-4]

This went over my head, need to watch it a few times over, but great work!

[@TuncayKandemir]

very nice presentation, thank you. 👍👍👍

[@tritranminh2808]

Thank you so much. It is really helpful.

[@usefulelectronics]

Thank you!!

[@shamelyazaw]

Thanks for the tutorial, well explained!

[@usefulelectronics]

Thank you Shamel for the support !

[@wnn8360]

3:55 LOL just loved the way of how u make something serious into something fun and lovely to watch 😸 Well done i have really enjoied watching this explanations 👏 I have also noticed that, this channel is so underrated for efforts that are putted on one single video. You deserve really more attentions. KEEP UP THE HARD WORK ✊

[@usefulelectronics]

Thank you for you awesome feedback. What I want from this channel is to let people learn something useful. Comments like yours motivates me to continue.

[@wnn8360]

@@usefulelectronics You are welcome 😽 Keep it up 🤙

[@KosonTrachu]

Awesome tutorial, thank you.

[@mertcelik539]

awsome tutorial thanks.

[@mertcelik9614]

it was useful for me. Thank you

[@jony1305]

If you still remember that, can you explain why you check the ACK signal only after the 9th clock cycle, and not as recommended by the TM1637 datasheet after the 8th clock cycle? Is the DIO kept LOW by a TM1637 longer than stated in a datasheet (until the EndPacket) ? But nevertheless great job. Keep up the good work.

[@mertcelik4307]

Thanks it's great

[@MegaCrossfire007]

Nice Job on this Video and your Library.

[@sujalnayak6214]

Can you make a video on tm1629a driver please?

[@Graham1904]

Enabling I2C in the communications module automatically sets the SDA and SCL pins but, more importantly, sets up the I2C module in the main.c

[@usefulelectronics]

The communication protocol is not I2C since TM1637 doesn’t have slave address. The second thing is that the data transmission starts from LSB

[@bahadrguven6268]

why did you choose i2c in cubemx. You don't use i2c. Am i wrong?

[@usefulelectronics]

I2C was not activated at all. SDO and SDI were the names of the used GPIOs for the display interface

[@bahadrguven6268]

@@usefulelectronics thanks a lot.

[@TheDambo1]

but on github there is no "library" - this is a complete example with cubeMX project - can you separate just TM1637 code in form of library and put this into another repository? And maybe link to example repository as submodule or just just separate library and example code to easier reuse this with just git pull?

[@usefulelectronics]

Hi thank you for your feedback. Yes you are right. I will create a new repo to include TM1637 library.

[@bahadrguven6268]

Why are you checking the address in the command function?

[@blahman442]

Does it work for tm1640 (28 pin)as well ? What would be the changes ? Reading the datasheet.

[@blahman442]

It does not work properly. I changed C0 to 00 as per the datasheet. Yet, I see no result.

[@usefulelectronics]

Hi Both ICs have the same working principle so the protocol is the same . The first thing that comes to my mind is to change the number of clocks peer packet.

[@aonguyen50]

Guy please, i want to affect to the registers of stm32 and dont use hall library, what should i do and. Ưhere i can find the project, thank you so much

[@usefulelectronics]

Hi, You can use low level API instead of HAL library. Have a look at this. www.st.com/content/st_com/en/about/media-center/press-item.html/n3949.html

[@sunofabeach9424]

> stm32 project > look inside > HAL

[@GreenTech_SmartHome]

there is not complete example in your code. can you show some number on displays? and you point in this video to a function named tm1637_shift. there is not in TM1637.c

[@usefulelectronics]

Hi, Apparently, the repository doesn’t have the last modifications I had done when uploading this tutorial. I will commit and push the last version of the code once I reach my old PC. tm1637_DisplayHandle function can print characters on the display depending on buffer data passed to it.

[@GreenTech_SmartHome]

@@usefulelectronics thanks, how can i select each display and show a numbr on it? how can i flash dots?

[@usefulelectronics]

@@GreenTech_SmartHome Remember the buffer I told you about, well this buffer can contain up to 4 characters an these characters will be mapped to your display depending on the data order stored in the buffer. I advise you to get your hands dirty with the library and get yourself familiar with the hardware.

[@GreenTech_SmartHome]

@@usefulelectronics i wrote hell on displays when you told the function. i thought there is a way to select each displays and write number on it. as you are telling, i should write on all of them instantly. ok. how can i turn on tow dots? i want to show clock on it. so i have calculate time and there is parameters. now i want to show these parameters on it.