Using multiple TM1637 4 digits LED Display with Arduino

[@mathislfx5037]

Thanks bro ! , almost only documentation existing on multiple displays, not so hard but very nice to see the code

[@robojax]

Glad it helped

[@breakerhun4859]

Hi! Nice video. Just one note, you can use the same CLK pin to give clock signal for both device at the same time, there is no need to separate them. This way you can save 1 pin on your arduino.

[@robojax]

Perhaps you could if you wrote your own library. but with the current library you can't.

[@breakerhun4859]

@@robojax Okay, noted. Can you daisy chain 2 or more of these bigger led digits? so you connect to arduino on the right side pins and on the left side you connect another one in series with mother-mother jumper cables?

[@robojax]

No you can't. You will need this module : www.ebay.ca/itm/173060000548

[@florinnica8909]

Hello! I use the same DIO for two displays. They work properly also. You can save a number of pins equal to number of displays more than one.

[@rwl7532]

The second 5v is supplied by IOREF pin which for the UNO and MEGA is 5v. That connection is viewable at 1:54 and 1:59 in the video but not called out directly. The board used in video has two 5v pins marked. My Elegoo has the pin labeled as IOREF With the help of Robojax, the TM1637 is a joy to work with.

[@florinnica8909]

Hello! Thanks for your video. It helps me to start TM1637 based LEDs display. I have two thing to tell you: 1. The brightness work in 0x0 - 0x7 range. The TM1637 consider only first 3 LSB. The brighness adjust is made by duty factory of comon anode commnad of digits. For 0x0, the ON time is 40 microseconds, for 0x1 time is 82microseconds and so on till 0x7 where the time is 600 microsecons. The cicle time of all digits is 4,7 miliseconds. 2. I try to use only one pin for DIO. I conected DIO of the two displays togheter at pin 8, CLK of display1 to pin 9 and CLK of display2 to pin 10. They work OK. Each displays diferent value. That means is not necesary a distinctive pin for each DIO. They can be conected at the same pin. In code I define DIO1 and DIO2 at pin 8. In fact, all TM1637 receive a start comand on I2C, but anly one display will receive clock signal from microcontroler. Finaly, all TM1637 will receive a stop comand. If the driver TM1637 didn't receive clock signal between start and stop comand, the display will stay unchanged.

[@robojax]

You are welcome. Thanks for the comment.

[@Faruox]

You are great 😊

[@dennisfriedl]

This tutorial was great. I am a bit new here and trying to use some of this design to work as a slot car lap counter. I'm close to getting it working but struggle with using two defined pinMode settings.When either button is depressed both displays increment the count. I can supply the sketch. I'm sure its something simple.

[@Dancopymus]

Greetings Robojax I have two TM1637 LED 0.56" Display Module but there is no way to work with ESP8266 ESP-12E WiFi; Normally works with TM1637 LED 0.36" Display Module (Smaller Display) but with 0.56" it doesn't work. Turns on Led Red behind the board but the display doesn't show anything. Do these modules larger than 0.56" only work on 5 volts? Do you have any tips for working with NodeMCU? Thanks

[@robojax]

Use this Using HT16K33 4 digit seven segment display with ESP8266 NodeMCU and D1 Mini kzbin.info/www/bejne/i3acY5uoo515nZY

[@Dancopymus]

@@robojax So, you can't use the TM1637 LED 0.56" Display Module with ESP8266? I think that's weird!

[@ClaudioFontachannel]

thanks, friend. your video is clear and complete

[@FilipJukić-d1h]

Hi Robojax, is it possible to use same CLK pin for bouth displays? THX!

[@robojax]

Hi, I am not sure. worth trying. there is no harm.

[@navidmafi]

Very useful and working without a problem! liked , shared and subscribed Thanks a lot

[@robojax]

You are welcome. I appreciate it.

[@shlomostark5317]

Any way to make sure there isn't interference with the screens running together. having a hard time getting more then 2 screens to run smoothly together.

[@robojax]

there is not interference. there shouldn't be any.

[@shlomostark5317]

@@robojax I'm trying to run potentiometers on each screen with a calculation. After 2 screens I get a lot of interference.

[@rajaguru7151]

How can we use more TM1637 in parallel to since it has no slave address? Please clarify. Thank you.

[@robojax]

This module uses serial communication and you can use any digital pin to connect. Simple as that.

[@rajaguru7151]

@@robojax thanks for your reply. I don't have spare digital I/o pins. I have used all. So I prefer to use only i2c. I have also many i2c devices connected on the same i2c module. Is there any way to use 5 or 6 tm1637 on the same i2c module.

[@robojax]

You are welcome. This device not using I2C communication. with I2C you can use up to 128 devices. You can use analog pins for other purpose as digital pin and they work (see it here I used them kzbin.info/www/bejne/h2rEc3xqerF-eZY) and then use digital pin for the TM1637. Good luck.

[@FerrariFilippo]

thank you so much. so if i want to build a chess clock, i can use this method to have player 1's time going on one clock while player's 2 time is still and then to the opposite after the pression of a button. right?

[@robojax]

I demonstrated that each is independent

[@norhafizahothman2920]

hi Robojax... I'm a newbie in this area. For my assignment, I need to control 3 units of TM1637 by using PIC16F886. i managed to program the PIC but somehow the LED lights keep flickering. im using 5VDC input. Is it because of insufficient power supply?

[@robojax]

Hi Norhafizah, the flickering is due to the delay in the loop. If you can, reduce the delay for example if you have it set to delay(300), then make it delay(200) or lower until it is corrected. Please reply here and let me know if it worked. salaam. Ahmad from Canada

[@guidovlaere]

Very useful video, good explanation, thanks a lot! It's very helpful

[@robojax]

I am glad you like it.

[@pascualpalacios7099]

Hello, if I want to show the temperature on the tm1637 display, 15.7, what function do I have to use?

[@robojax]

Hello, I've spent so much time and not worth using this display use this display which is the king kzbin.info/www/bejne/apKmmHuEf9Fsobs or use this LCD kzbin.info/www/bejne/h2bIn4uwlrOLkM0 forget this TM1637 junk.

[@pascualpalacios7099]

@@robojax thanks for your answer, you have some thermometer circuit that shows the temperature 4 display of 7 segments with the sensor ds18b20, or an ntc, or dht11

[@robojax]

Here is how to find Specific KZbin Video in a channel bit.ly/findKZbinVideo

[@sergiobe87]

thanks for the video. I want to know how many TM1637 can I connect to a single Arduino Uno or what would be the best solution to use several TM1637. thanks in advance

[@robojax]

that is why I made this video. As long as you have the pins you can connect.

[@hectoro5144]

thanks a lot man! very clear explanation!

[@robojax]

You are welcome.

[@raticalinc_restore_garage]

Hi is it possible to run 4 separate (independent) 3 display segments of Arduino?

[@robojax]

Hi, may be I am not reading this correctly but this video is exactly shown that. I demonstrated with two so you can do with as many as your Arduino pins are available

[@robojax]

The two shown are independent.

[@raticalinc_restore_garage]

Ok 100%, I busy with a 4 display

[@raticalinc_restore_garage]

Do you have a WhatsApp number?

[@floriswouterlood8400]

Exactyly what I needed! - and it works without any problem - Thanks

[@robojax]

You are welcome. Good to know that.

[@bricecotte5225]

What a nice job ! It's working extremely well but I do have one question, did you plan something to display the ":" in the middle of the display ? I didnt find how I could do this

[@robojax]

Thank you. I've spend hours on this and did not work on all modules. so forgot about it. So we have to use this module: kzbin.info/www/bejne/oV7JZ5-trLqHd9U

[@bricecotte5225]

@@robojax Ok thanks !

[@shrikantnikam5241]

i set full brightness at software control i am using different 3 digit module on same pcb it is not enough bright what i can make in hardware? for increase brightness

[@robojax]

I have shown it how to set to maximum. If that is not enough, then you are under the sun or your power source is not able to supply power. use different power supply.

[@scottlasenby5509]

I see in this tutorial you have two different sizes of TM1637. What is the ordering identifier for the larger size and the dimensions? I recently purchased a set from you via amazon and they came as the smaller more common size. Thanks.

[@robojax]

The small one is 0.36" and the larger one is 0.56" LED display and you can see them here www.ebay.ca/sch/i.html?_from=R40&_trksid=p2380057.m570.l1311.R1.TR11.TRC1.A0.H0.XTM1.TRS0&_nkw=tm1637&_sacat=0

[@davidmora2105]

Good video, and well explained, can I use 1 display to show me the time and other display show me temperature at the same time?

[@robojax]

that is exactly I have made this video for. Yes you can. I shown how to use two of more display. Or you can use 8 digit display shown in this video kzbin.info/www/bejne/iGbWpZhriq2gh80

[@patakiattila8970]

Hi Robojax, great video. I have a big question. Is it possible to wire 6 of this led displays 6 stepper motors and 6 home switches, 6 RGB led diode, 1 temperature sensor and 1 water level sensor and 1 solenoid valve to 1 Arduino UNO ? Or any of Arduino board? Thank You!

[@robojax]

Thanks. For Arduno Uno, count the pins and if you can fit all, you can do it. Or get Arduino Duo or Mega.

[@patakiattila8970]

@@robojax Thank You Robojax. I think I'm going to choose Arduino Mega 2560 clone. If i may ask would you help with this project? Of course didn't think to take your time for free.

[@robojax]

You are welcome. I am sorry I am very busy with my full time job and part time school. Can't do it.

[@carlossandoval7439]

is it possible to connect both clocks? so it only uses one digital output on the arduino?

[@robojax]

these two displays are not clock. they display information FROM arduino. They DO NOT send information TO Arduino.

[@carlossandoval7439]

@@robojax Im working on a project where i have to hook up about 16 of 4 digits 7 segments lcd displays to the arduino. Is there any way to avoid having a single clock bus for every display?

[@robojax]

Sorry not possible as each display has separate chip.

[@carlossandoval7439]

Blondie SL thank you for you advice. I was doing a school project and wanted to implement some of those, but I managed to hooked up 16 of them to the mega, I don’t remember very well but I think you can connect at least 8 to the same clock pin, I believe I ended up using only 20 pins on the board plus 1 extra to ground the board

[@RizwanSaeed]

How we can build the DC 500V and 20A and 4000W and Kwh meter recomend me the modules for Arduino

[@robojax]

are you looking for DC power meter? If so hen I have this video to display the current. kzbin.info/www/bejne/fXaXemRmfr9koLs and very easily you can also read the voltage (500V or more) using this video kzbin.info/www/bejne/fJLSfK2fbNmag6c . You can multipley P = IxV and get it.

[@marianogergo]

como puedo mostrar los dos puntos entre el 2° y 3° digito?

[@robojax]

You need this display kzbin.info/www/bejne/apKmmHuEf9Fsobs

[@b9robot01]

Hello Robojax Thank you for posting this perfect video, This is perfect for a robot I am building and I was wondering if there is a way to alter this line "#define TEST_DELAY 5000" so I cold have display 1 cycle slower or faster than display 2. I am also working on adding displays 3 and 4. I think this would be amazing for what I am making. Thank you

[@robojax]

Hello Jin, You are welcome. yes you can change the value to see whatever fits best your application. for 3 and 4 item, just follow the same principle and it should work. I mentioned in the video that this is for 2 or more. So you can follow the video. Watch it again so you learn.

[@luisenriqueacostagomez9949]

Gracias por tu video. Me resultó muy útil.

[@robojax]

Me alegra que haya sido. Mantenerse a salvo. Saludos desde Canadá. Ahmad

[@daysfishy4851]

Thank you so much!!

[@robojax]

You are welcome.

[@GoymonTV]

I have a large display from eBay no display even I supply it separate 5dcv

[@robojax]

This is video is for 2 displays. Watch this video kzbin.info/www/bejne/eqbEnp2iqNmCga8 Please include the library. Without library it won't work. If still doesn't work, I will post a solution in a few weeks.

[@GoymonTV]

@@robojax its working now thanks to you. I have a making a project with on/off switch, StbY on the display then beep sound and timer starts then when hit the plate timer will stop. Can you please help me with the codes

[@RexGuard]

ROBOJAX when you make my video?? ( how to control pca9685 with bluetooth)?????

[@RexGuard]

this is my QUETION ROBOJAX PLEASE MAKE IT NOW

[@RexGuard]

xD

[@robojax]

I will look at it and see which Bluetooth module I have.

[@RexGuard]

OK ROBOJAX IM WAITING THANK YOU

[@usmanumer9871]

عید مبارک احمد

[@robojax]

عید مبارک. کل عام و‌انتم بخیر

[@Delorean29]

Can I use & connect all like this? See red arrows: i.imgur.com/DDwRS77h.jpg?6

[@yogeshitaliya473]

💞💞💞💞💞💞

[@aungkyawsoe6897]

Thank you very much!

[@robojax]

you are welcome. I hope you've subscribed as your subscription help my channel grow. Thanks