Arduino for STM32

@STM32ardui Your angel, your genius. thank you 1. ‘SMPS’ advice: I understand. 2. ‘Battery’ advice: I understand. 3. ‘Crystal related’ 1) If there are crystals, the unit price increases. 2) The PCB is exposed to an environment of -20℃, and the 'crystal' may become a problem. 3) So, I would like to k...

@STM32ardui @fpiSTM Hello. I'm testing it, but it doesn't work. https://drive.google.com/file/d/1-jlk3Hxbe6iZSbiBQjNMRF1mJNoFKAe4/view?usp=sharing https://drive.google.com/file/d/1dzZzKFkonkRnD0plX1yqwI6pOwsLFm2j/view?usp=sharing 1) remove the crystals of ‘8MHz’ and ‘32.768K’. 2) The capacitor was n...

STM32ardui Thank you for answer. Thank you for your kind explanation. 1. Should the board run by a (rechargeable) battery? - Proceeds without charging. 2. What is maximum capacity (may be limited by case)? - 3.6~4.2V, lithium battery, 2000mAh 3. Does the board need maintenance for replacing battery...

By default generic uses the internal oscillator (HSI). @fpiSTM Your answer is correct. That's what I want. Thank you. 1. From the STM32F103 ‘Circuit Diagram’, remove the crystals of ‘8MHz’ and ‘32.768K’. 2. After that, grab the bootloader. - generic_boot20_pc13 3. How can I make the firmware operate...

@STM32ardui Thank you for answer. MCU: STM32L151C8 or STM32F103 I will create a low-power system using the above MCU. 1. RTC function is not required. 2. After counting, we try to record it internally through ‘EEPROM.h’. 3. I am curious if it is possible to use the ‘Arduino IDE’ source code without ...

3. I want to make a board without using ‘CLOCK’ or ‘crystal’. Is it possible to use 'STM32DUINO' without using 'Crystal'? (In other words, is the firmware available through Arduino IDE?) Is there a way to code through 'Arduino IDE' without using 'Crystal'? 4. Can ‘BOOT’ be set to ‘generic_boot20_pc1...

Hello. I'm trying to make a low power board. I would appreciate it if you could give me some 'advice' or 'additional comments'. 1. Deep-sleep mode operation 2. Event occurrence: wake up 3. Save count eeprom 4. Deep-slip repeat..... 1. MCU: STM32L151C8 I am trying to select the above MCU. I'm plannin...

Is 'STM32F103C8' 'digitalWrite' and 'digitalRead' possible in FAST mode? hello. [Status] 1. MCU: STM32F103C8 2. CORE1: https://github.com/rogerclarkmelbourne/Arduino_STM32 In the case of Arduino (AVR), there are the following libraries. https://www.arduinolibraries.info/libraries/digital-write-fast ...

STM32ardui Thank you for answer. Currently, it has been functionally implemented. However, I looking for a ‘definite answer’. 1) Using internal 'EEPROM' 2) Use of external 'EEPROM' 3) SD card storage After measuring something, you need to record it, The question was about what type of low-power mod...

STM32ardui Thank you for answer. Currently, the plan is 1. Wake up via ‘external pin’, 2. After counting, we plan to save it to ‘EEPROM’. if, 1. Is there any problem when saving to ‘EEPROM’ of ‘STM32F103CB’? 2. It counts momentarily and goes into 'deep sleep'. Is there a chance that an error may oc...