All Questions
Tagged with logic-level stm32
11
questions
0
votes
1
answer
116
views
Pushing a button press from a driver to three different transistors with three state logic
I am working on a project within my company that involves a relay board used to control three different motors when an external 24 V button is pressed. The existing setup works based on this principle....
- 441
0
votes
1
answer
46
views
Ensure that cable is not disconnected from my custom board
I designed a custom board, the board includes stm32 that turns on a control voltage that operates SSR and the SSR goes to the load:
CTR comes from the GPIO of STM32.
in my custom board, there is some ...
- 441
2
votes
1
answer
928
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What is the voltage output from STM32 BluePill Digital I/O pins?
I am planning to use logic level MOSFET IRL540 as a replacement for my 5V 1 channel relay module to protect my Arduino pro micro from current requirements of the relay module. I would also like to use ...
- 532
0
votes
1
answer
828
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Maximum input voltage Black Pill
I have a sensor outputting a 0.8 - 5.0V signal, where this analog signal is read by a 16-bit ADC, the ADS115. The ADC is capable of reading the maximum 5V signal since I am powering the ADS with VIN = ...
- 11
1
vote
1
answer
2k
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What are the output logic levels of this STM32?
I am struggling getting my head around the input and output logic levels, mostly the output levels of this STM32 (STM32F446xC/E).
This table shows the output logic levels as dependent on if it is a ...
- 161
0
votes
1
answer
122
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PWM logic level issue
I am facing new problems everyday at embedded system. I have designed D-SMPS and put an stm32f103 to drive mosfets.I have tested micro controller and it works well while giving outputs as GPIO.It is ...
- 127
1
vote
3
answers
2k
views
STM32F4 and SIM800L logic level
I am currently using an STM32F401RE that I have to interface with a SIM800L GSM module via UART. In a first "toy example" I used Arduino and found no problems, but passing to the STM MCU I am unable ...
- 31
2
votes
1
answer
549
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CAN Rx Line between STM32 and MCP2561
I discover a problem on my design, with a STM32F042K6 MCU and a MCP2561 Can Transceiver.
I can send some frames on the CAN Bus but i can't receive any frames.
When i put my scope probe on the CAN Rx ...
- 169
1
vote
1
answer
1k
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LCD SPI interface logic levels and SPI pinout
I am designing a circuit that includes this LCD and STM32L071 microcontroller.
I have connected the LCD to 3V power net and the microcontroller to 3.3V power net.
To communicate with the LCD, I need ...
1
vote
1
answer
598
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STM32F4 Nucleo - how to set pins low while uploading firmware?
I am busy trying to write some firmware for a system with a whole lot of digitally controlled hydraulic components, and it's a complex system so there is a lot of tweaking of the algorithm and ...
- 39
4
votes
2
answers
2k
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What is the usage of this resistor?
I'm thinking about this part of this board :
As you can see, there is a resistor in the red rectangle (R26). my question is what is the usage of this resistor?
Well being a resistor for D14(CANRX) ...
- 4,650