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HAL_GPIO_EXTI_Callback does not calls any function. Whenever pin PB11 goes from high to low, the function HAL_GPIO_EXTI_Callback is executed

uart sends one byte a time. that means 8 bits if you want different size data to send break them into 8 bit pieces and reconstruct at the receiver end for example if you want to sent 16 bit number to send as you have shown, you can follow as shown below uint16_t toWrite; uint8_t Broken1; uint8_t Broken2; Broken1 = toWrite & 0xff; Broken2 = toWrite >> 8; uint16_t Reconstructed; Reconstructed = ((uint16_t)Broken2 << 8) | Broken1;

@@NizarMohideen very useful thanks👍👍

You can set sate. You can get date RTC_DateTypeDef gDate; HAL_RTC_GetDate(&hrtc, &gDate, RTC_FORMAT_BIN);

@@NizarMohideen when I set the date it works, and when it starts without setup, why can't it? the result is day 0, month 1, date 1, year 0

@@NizarMohideen it keeps only time not date, can you help me? thanks

Do the similar things to date initialization as you done for the time code from second and subsequent uploads That is to comment out the date code except for the first upload

I don't know

400 cm as in www.sparkfun.com/products/15569

I am sorry to say that this bootloader did not work with stm32f103c6 I have tested with many stm32f103c8 and all worked including clone chips I believe the souce code can be modified and complied to work with stm32f103c6 If I have time to modify it or if I find another bootloader for stm32f103c6, I will let you know Thanks

usb will not be recognised until bootloader download. Even after bootloader download, usb will not be recognised. You need to press the reset button in the stm32f103c8 bluepill, then usb will be available

Yes. You can. But ST-LINK utility - OLD Version STM32CubeProgrammer - NEW Version

You can upload the code straight from CubeIDE to STM32 without using ST-LINK utility or STMCubeProgrammer

@@NizarMohideen appreciate you sir

Yes. It will work with the same CubeIDE setup and codes. You can use stm32f103c6 for both modules Or you can use stm32f103c6 for one module and stm32f103c8 for other module

Joystick only ruclips.net/video/NEUtfDNfIKk/видео.html Potentiometer only ruclips.net/video/Lot5CjxMmsk/видео.html Joystick with motor ruclips.net/video/0rbKmkNEdAU/видео.html

I think it is the same module as the DCF77

Good News ... My next video will be about downloading the code using DFU bootloader (via USB cable only)

Done. Video link ruclips.net/video/ReSaV4y2XSA/видео.html

Multiple 74HC595 Shift Registers with STM32 done Link --> ruclips.net/video/XLJzC3ukmAs/видео.html

Thank you sir. Is it possible to make it with 3- 7 segmant

Of course, it is possible. It is also very simple. Just replace the 7-segment in the place of led and switch on and off the pattern. Because it is simple, I don’t want to repeat the video recordings, besides I don’t have three displays with me. Thanks

thank you sir.

I do not have stm32l475vgt6 with me But I have done this motor and l298n with stm32f446re and stm32f103c8 the link is ruclips.net/video/0rbKmkNEdAU/видео.html you can compare both and you may be able to do the same with any stm32 by yourself

I have used 10 milli seconds to ignore debounce interrupts If the push button is not smooth, you may need to increase the time if (GPIO_Pin == GPIO_PIN_1 && (currentMillis - previousMillis > 10)) ^^^

@@NizarMohideen I've already tried to set 50ms, but it doesn't help. Also, it's not a button problem. The same button works flawlessly with 50ms debouncing delay in my PIC code. But I'm new to STM32 and can't make it work yet.

I will search for better way of doing with interrupt service routine. If anything better, I will let you know. In the mean time, you can also search for isr documents in the net. Thanks

Yes. You can HAL_TIM_Base_Stop_IT(&htim2); // During prorram running change the values inside MX_TIM2_Init() MX_TIM2_Init(); HAL_TIM_Base_Start_IT(&htim2);

@@NizarMohideen thank you, awesome. i will try it.

OpenOCD used to work but it does not work any more. I have not found anything else so far

The timer used in this example is for micro-second delay. As long as you get 1us, it should be ok

the parameter settings of Lora is not in this video. I have a separate video for settings ruclips.net/video/6vIYaawRQ2g/видео.html

@@NizarMohideen Thanks for your answer. I can adjust the parameter settings of the lora with the RF Settings application, but I do not know how to use these parameter settings when writing code. "#include <SoftwareSerial.h> SoftwareSerial FixSerial(3, 4); #define M0 7 #define M1 6 void setup() { Serial.begin(115200); pinMode(M0, OUTPUT); pinMode(M1, OUTPUT); digitalWrite(M0, LOW); digitalWrite(M1, LOW); FixSerial.begin(9600); } void loop() { FixSerial.write((byte)0x00); //Receiver Address HIGH FixSerial.write(3); //Receiver Address LOW FixSerial.write(18); //Receiver Channel =0x17=23 (410M+23=433 MHz) intSend(12345); // We will send this number -> delay(1000); } void intSend(int number) { FixSerial.write(highByte (number)); FixSerial.write(lowByte (number)); }" I used parameter settings like this with Arduino, but I have no idea how to do it with CubeIDE. Can you help me with this?

It is possible. But I have not done it with stm32. Thanks

ADC Prescaler is set to /6 and 12 to ADC 1,2

I have noted that it does not update for some stm32 chips. If so, you can try stopping and restating adc for each readings as shown below HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1,1000); readValue = HAL_ADC_GetValue(&hadc1); HAL_ADC_Stop(&hadc1); Thanks

@@NizarMohideen Still not working here is my code privnote.com/nfYJT7Rj#Bfh1nZfTf

I have seen your code. It has DHT11, light sensor and UART Interrupt input. It would be easier for you to test light sensor only and make sure it gets the ADC values. Make it simple and remove everything except light sensor then combine with other elements. Good luck

I have calibrated only zero ampere point. We have to calibrated at several points until rated 30 ampere We need variable load to produce variable high currents. Even 20A/ 5V produce 100W and the load I had can not handle the heat for few seconds. So for many beginner students don’t have the facility to calibrate at home If they wanted so precise measurements then they should contact current calibrating people. Thanks