Interface LCD 1602 with STM32 || Parallel Connection || 4 bit mode || noI2C 

Absolutely works! Changed pins, and work at once without errors!

Helpful video as always :)

You saved my life, thank you very much online stranger.

Well Done! Nice and complete.

Thank you so much!!! I got my nucleo to run the arduino lcd shield

Great video, thanks for the information

YOU are perfect as usual

gracias desde colombia , greate job!!

you are king of stm on the toutube thank you and ı so like your site; thanks sir thanks

nice and great video

Jan 2023 - it still works

Thank you

Hello, would you tell me how can I download the library of the project I didn't find it on your website!

hello, your videos are been a gem to us, I tried the same code but I'm just getting blank screen

Thank you sir for the wonderful tutorial. Can you make a video on Devanagari display in same set up?

Hi I'am confused.Bit DB7 of DDRAM is HIGH.That is hex 0x80 but DDRAM adress is 0x00 to 0x4F. Is this possible?

Thank you for all your great tutorials. How do you control the LCD contrast? I don't see any potentiometer on your breadboard. Is there an other way?

Can I use this for 16x4 lcd display,, plz reply

Thanks You! One question, if I would like to print a variable, how can I do?

Hello, I want to realize a project with FreeRTOS and multi tasking. I guees there will be some adaptations to make it non-blocking (non-blocking delays). Any advices on how to do it (for example can I use it with I2C without any difficulties?). I'm a newbie with STM, thanks for your answer.

Hi, I have a question, how can i continue printing automatically in the 2nd row without call lcd_put_cur(), if the word's lenght is more than 16 characters?

Gan agar bisa berjalan text nya gimana (running text)

The blank screen might be due to the delay issue. Here is what you can do Put the code below in the LCD.c file 1. static uint32_t DWT_Delay_Init(void) { CoreDebug->DEMCR &= ~CoreDebug_DEMCR_TRCENA_Msk; CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk; DWT->CTRL &= ~DWT_CTRL_CYCCNTENA_Msk; DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk; DWT->CYCCNT = 0; __NOP(); __NOP(); __NOP(); if(DWT->CYCCNT) { return 0; } else { return 1; } } void DWT_Delay_us(volatile uint32_t usec) { uint32_t clk_cycle_start = DWT->CYCCNT; usec *= (HAL_RCC_GetHCLKFreq() / 1000000); while ((DWT->CYCCNT - clk_cycle_start) < usec); } 2. Initialise the DWT in the starting inside the LCD_Init function DWT_Delay_Init(); 3. Now use DWT_Delay_us (time) ads the delay instead of the timer delay

My maximum HCLK is 48 MHz so i tried some differents prescalers in the timer 1, and i remove the delay from send_to_display function. I also connected the RW pin in the GND. But doens´t work, do you know what could be? I am using a SRM32f072B Discovery board. Thanks.

Thanks for you great best..that very useful totuirial ..the LCD work on 3.3 volt or 5 volt power supply.??

Can we use the same code in the keil software. Will it work like using STM32 Cube IDE for pin configuration and the code in the keil software that you explained here. Will it work?

I'm using a NUCLEO-F446RE but it doesn't work, the LCD lights up but it doesn't write. the Clock is 84MHz so i'm using a prescaler of 83, I also chaged the pins, i'm using PB8-PB9-PB10-PB12-PB13-PB14-PB15. Can you hel me?

I have some warning in code row 44 to 58 "enumerated type mixed with another type", how fix it?

hello . your video is great. but can you give me lirbary of lcd as video

Thank you for this ...your videos are very helpful . i am having difficulty passing numeric values. Kindly advise. i tried sprintf to char array variable , but no success. kindly provide sample code to display integer variable e.g 1234. thank you.

Hello i am trying to follow your tutorial but i can´t get it to work. The screen turns on , but all that appears are black rectangles, as if all the lcd matrix was turned on at the same time. 1st question: In the code there is no reference to RW at all, it gets defined but you never set a value to it, ¿Does this matter? 2nd question: If the max clock speed of my microcontroller is 80Mhz and it runs at that speed in default, then there is no need to activate the ceramic clock, ¿Right?. I am just using the internal clock with a prescaler of 80-1. 3rd question: My LCD is a GDM 1602K, and in the datasheet it seems all the commands work exactly the same, but there is no reference to the initialization procedure, ¿Should i use the same one as you do? If you have any clue about what my problem could be, i would be more than greatfull.

If i want to make a digital clock in lcd how can i do it?

Where are all my fellow students from Stellenbosch university watching this for E-deign? 😂😂

hi,i use stm32f4 discovery and just light up,no letters or numbers at screen etc. apb2 bus 168Mhz, so i made it "168-1" ,presecaler is "0xffff-1".Other things same. I increased microsecond value step step such as 0,,20,50,80,130.. what should i do,any offer for me? thanks in advance

whare are lcd.h and lcd.c files ( libraries files )

Grounding the rw pin means only write! Is this correct?

Hello In 100,000 units, less than 1 is displayed as zero, and how do I make zero invisible?

Hello sir, I flash the same code in my lcd with stm32f103 the only difference that i have was pin use insist of PA4-PA7 i am using PA0-PA3 so i change configuration of lcd data and lcd cmd but that didn't work i use (cmd&0xf0)right shift 4 . please suggest what possible error i am doing

how to dark theme

Noooooooo AI speak

I am a beginner in stm32 and using F303RE. Do I change include to my specific board, referring to stm32f1xx_hal.h? keep getting "unresolved inculsion"