Stm32 ttl uart 2k次。博主能力有限，有错误望大佬指出 0x00 文章内容：UART阻塞方式收发UART中断方式收发UART中断回调函数UART DMA方式收发printf()函数串口重定向0x01 UART阻塞方式收发CubeMX or CubeIDE配置1. store_____ 1- MacOs Catalina 2- STM32103c8T bulepill board 3- SLAB UART USB-TTL CP2012 V3. VDD to 5V of USB to ttl. Open the MPLAB IDE and create a new project name it “PC_Control_USB-TTL”. No extra voltage divider resistors are needed or anything else. 3V 또는 5V 로 동작한다. We also programmed the STM32 development board to blink an LED. Proper bootloader; To get the proper bootloader for your Blue Pill, read the pin number for the built-in LED of the board. STM32定时器包含基本定时器、通用定时器和高级定时器，其中TIM6和TIM7是STM32当中的基本定时器，作为初学者，先从最基本的学起最容易，下面我们 前期知识 关于TTL电平 TTL是Transistor-Transistor Logic，即晶体管-晶体管逻辑的简称，它是计算机处理器控制 STM32 HC-05 Bluetooth Module Interfacing . In this series we will cover different ways of transmitting and receiving data over the UART protocol. The following example picture has its LED on pin PC13. We’ll also implement a couple of STM32 UART Este guia aprofundado combina conceitos teóricos, configuração prática e técnicas avançadas para dominar a UART no ecossistema STM32. Refer following fig. 6w次，点赞17次，收藏63次。关于stm32的uart口是否需要接上拉电阻我主要是在《电路设计与制作实用教程----基于立创eda》里面看到stm32的uart口还接了个上拉电阻，我不是很理解。我去看了下正点原子的 对于TTL电平的UART，起始位为低电平，停止位为高电平，发送的数据是从bit0 - bit7，空闲时为高电平。 2. Two of the previous blogs discussed the process of programming your BluePill (stm32F103C8T6) via ST-Link and via UART. It is easy to use, along with features like fast data rate, low power consumption, If you want to interface TTL-level UART signals to the STM32, you can connect them directly to the STM32's UART RX and TX pins. while using in stm32cubeprogrammer it is working in bootloader mode. The UART TO ETH module provides an easy way to communicate between UART and Ethernet, it can be configured via web page. Estos conversores USB a TTL son dispositivos baratos, y muy útiles, que podemos encontrar en AliExpress o eBay por entre 0. So, to program the STM32 via UART, you have to enter into Bootloader mode, send the right commands via UART, and then send the program binary. Features. c/. To send data in half-duplex mode with STM32 UART, you need first to enable TX using the HAL_HalfDuplex_EnableTransmitter function. 3V TTL level. connections: STM32 PA9 (TX) to RX of USB to ttl. 在主程序中初始化uart并实现数据发送 Step 1: Connect the STM32 Blue Pill to the USB to TTL Converter. 3V, so we have to make sure that our TTL converter operates at 3. in STM32CubeMX (MCUs) 2025-04-14; Also, the UART can be used with interrupt. So - just set device into boot mode (by setting BOOT0 and BOOT1 In this tutorial, we will discuss how we can interface STM32 (as master) to any RS485 (Modbus RTU) based sensor (as slave) using STM32Cube IDE. It is easy to use, along with features like fast data rate, STM32. However, you may have noticed that Blue Pill STM32 The 2-CH UART TO ETH provides an easy way to communicate between UART TTL and RJ45 Ethernet, allowing bi-directional transparent data transmission. In this article, we discussed what are the STM32 Boot Modes and how they are implemented on the STM32F030x series, what’s a Bootloader and how to use STM32CubeProgrammer to flash an STM32 using UART. If the device you refer to is also TTL serial then yes they may well work if connected together (if the device you mention is RS232 then no it won't work). TTL-Level UART stm32的uart硬件电路，在进行线接传输时，一般低于230400bps的波特率 如果要实现接线方式的串口信号传输距离加长，常用的方式为采用rs232电平转换芯片，将uart的ttl电平转换为rs232电平，但因为rs232标准依然是单端信号标准，所以也不能有效提高 First Add use UART Handler and its init in this function i used UART2 change it to your periph if you use Stm32 Cube or IDE just select the periph it is automatically generated. We will use F103 and F446, which are connected via two RS485 modules. Interrupts Mode. I want to do UART by connecting USB to TTL converter(PN-USBTTL-FT, FTDI FT232RL) to Tx and Rx of the board pin without using the USB port of the. Then, you can send the data you want to send over UART in half-duplex mode, and switch back to the RX (receiver) mode to capture any incoming data. This article goes through the following UART features: Simple UART communication in polling mode; UART with Interrupt ; UART with DMA ; 2. Currently, it uses UART3, which is connected to the ST-LINK. 7 volts, logical 1 is between 2 and 5 volts. In that mode, you don’t have to wait to finish the data transmission. com/drivers/ UART (Universal Asynchronous Receiver/Transmitter 通用异步接发器)：是串口通信的物理接口，可以独立成芯片或是作为模块嵌入到其他芯片中。 TTL串口 、 RS-232 、 RS485 都是串口通信协议，区别在逻辑电平表示方式不同。在arduino、STM32等单片机内所使用的都是TTL串口。 STM32L0 Arm Cortex multiplexing UART and SWD. 0 The difference is that when you connect TTL to TTL, its operating at 3. Blue Pill STM32 consists of three UART modules: UART1, UART2, and UART3. UART is a communication protocol that enables the user to send data asynchronously through transmit (Tx) and receive (Rx) lines. You have a signal when UART is done with the transmission or reception and ready for service. To start, you’ll need to connect your STM32 Blue Pill to your computer using the DSD TECH SH-U09C5 USB to TTL converter. Otherwise, a pull-up resistor can be added. You’ve successfully set up and programmed your STM32 Blue Pill using the Arduino IDE and the DSD TECH SH-U09C5 USB to TTL converter. TTL TX -> STM32 USART1 RX (PA10) TTL RX -> STM32 USART1 TX (PA9) After this setup, I sent the 0x7F command to initiate communication but did not receive any response. STM32F1 Blue pill is a versatile board and can be In this tutorial, we will cover the STM32 USART peripheral. but while using doclight or herculus the stm32 is not responding to the commands. HOME; STM32. With this converter, a computer or other device with a USB interface can connect to TTL logic level devices, such as microcontrollers, sensors, and usb转ttl模块1. If you can risk working without electrical isolation you might also consider buying a Nucleo-64 board (or something similar), cut off the Embedded ST-LINK/V2-1 from the Cuttable PCB and use this for How To Send Data With STM32 UART Half-Duplex. Thus, you should have the latest version of Arduino IDE. # STM32系列-串口-uart-引脚上拉-原因问题的搜寻前言-（知道一个结论正确，也要知道它为什么正确）问题描述查找过程（1）上网查资料（2）请教大佬（3）查代码-找手册 1、当TTL电路驱S电路时，如果TTL电路输出的高电平低S电路的最低高电平（一般为 The user manual for STM32 Nucleo-64 boards might be an interesting starting point for you to find an answer. It involves a shared baud rate between the transmitter and receiver. UART1 is available on pins PA9 and PA10. We’ll only discuss both the TTL-level UART and RS-232 in this sub-section of our tutorial. Jumper cables for connecting; Micro USB cable; STM32 Flash loader demonstrator; USB Maple serial drivers. This converter will allow your computer to communicate with the STM32 Blue Pill via its UART interface. . For reliability use TTL(3. Guidelines For Designing Our HC-05 Bluetooth Driver (Library) Some line driver ICs have internal pull-up resistors on their TTL/LVTTL-side input pins to prevent this and produce an RS232 idle state. Wiring Setup: RXD (SH-U09C5) -> PA9 (RX on Blue Pill) TXD (SH-U09C5) -> PA10 (TX on Blue Pill) GND (SH-U09C5) -> GND In this first post we are going to program the STM32 via UART, so we will need a USB-TTL converter. This powerful microcontroller opens up a world of possibilities for your projects, offering the performance of a 32-bit ARM Cortex-M3 processor at an affordable price. Before diving into programming your BluePill, it’s better to know its operating modes. We can use any UART module for serial data transmission. pdfMusic: Heroes Tonight Remove the USB-TTL converter from the STM32 Blue Pill and plug the Blue Pill using the USB port. But there was one huge drawback with it because of the method we used to upload the code. When I connect the TTL to the USB cable to the PC it appears as a USB-Serial-Controller, UART communication between OpenMV board and STM32 Nucleo board in STM32 MCUs Products I am using STM32L1 Series Discovery board and want to do uART communication via same UART port that is Used for Embedded ST Link V2. USB to Serial/USB to TTL adapter. 2 UART输出 TTL电平及转换模块介绍, 视频播放量 3194、弹幕量 20、点赞数 62、投硬币枚数 39、收藏人数 73、转发人数 7, 视频作者 Pulf_bili, 作者简介 闻道百，以为莫己若者，言吾矣。 不做“专 In our previous tutorial, we learned the basics of the STM32 Development Board. Browse in STM32 MCUs Embedded software 2025-04-16; Bug or ill advised design choice: converting between pairs of . 0 4- Platformio IDE 5- STM32 CUBE Programmer software which detects and connects to my board through UART. 3V and nextion works "If the 5V UART interface input is TTL compatible, VOL<0. 3V microcontroller UART port, Mastering STM32. This STM32 ARM microcontroller can be in Bootloader or Normal Operating Mode. One is through UART. UART2 is available on pins PA2 and PA3. Module USB to TTL Serial PL2303HX có sẵn các thành phần cần thiết, bạn chỉ cần cắm vào cổng USB của máy tính là có ngay 1 cổng COM ở mức 5V có thể giao tiếp với vi điều khiển. En esta primera entrada vamos a programar el STM32 por UART, por lo que vamos a necesitar un conversor USB-TTL. Clone/download this repo. UART接口：通用异步收发器（Universal Asynchronous Receiver/Transmitter)，UART是串口收发的逻辑电路，这部分可以独立成芯片，也可_串口ttl是线序 STM32串口TTL和RS-232 文章浏览阅读10w+次，点赞52次，收藏391次。注：串口发送数据(usart)是stm32调试中经常使用的功能，但是电脑usb的电平标准与串口所使用的ttl标准不同，所以需要一条usb转ttl线来完成它们之间的通信。本文介绍使用usb转ttl线完 Purchase the Products shown in this video from :: https://controllerstech. We will create an example project by interfacing a RS485 Modbus protocol based WS-TTL-CAN is a TTL UART to CAN module which is compact and easy to integrate, onboard high-performance MCU, with TTL and CAN conversion protocol, easily achieving UART to CAN via simple configuration. STM32单片机开发入门(六) 2. STM32 Blue Pill UART Ports. 70€ to 2€. a dedicated configuration tool is provided by ST: STM32 you can directly connect a “USB to Serial TTL” type FTDI cable in 3 usb 转 ttl 串口模块是一个非常实用的工具，可以测试模块的 uart 串口通信和通过单片机的 uart 接口给单片机等下载程序。 能够在电脑上的串口助手软件非常直观的显示出串口设备返回的数据以及发送相应的控制数据给串口设 RS232串口经常用到，本文分享下RS232协议方面基本点，并介绍一种简单的串口TTL（3. Setting up Arduino IDE for STM32. 1. 文章浏览阅读3. Use this function in order to use the print function it's act the same like Printf. This implies that a 3. 50/1 on but the hardware is cheaper. R is a slower device than T, and R cannot keep up. UART3 is available Uart 接口的详细解释. 3 Volt digital, there are possibility of wrong data due to noise. 6w次，点赞16次，收藏91次。本文详细介绍了如何使用usb转ttl线实现stm32单片机与电脑之间的串口通信，包括选购合适的usb转ttl线、安装驱动、连接线路及编写测试程序等步骤。 文章浏览阅读1. Learn how to set up UART and stm32f103的pa9连接到usb转ttl模块的rxd。 stm32f103的pa10连接到usb转ttl模块的txd。 gnd连接到共同地线。 配置uart外设. Being in Bootloader mode means this device is ready to be programmed through USB or UART, flashing firmware into the program memory area, without needing an ST-Link hardware module. Don't have ST-Link? No worries, use FTDI or any USB-TTL Converter to uploadUse STM32 Cube Cube Programmer UARTFTDI driver is here https://ftdichip. 8w次，点赞591次，收藏1. com. ESP32 UART Pins. A transmitter T is sending a long stream of bytes to a receiver R. Eventually, the Bootloader will program your binary into the main Flash memory. " FT = 5V tolerant pad. Consider the case where two units are communicating over UART. This article shows you In this tutorial, we’ll discuss the STM32 UART Communication. The USB-TO-TTL-FT232 is a UART serial module that converts a USB interface to TTL level. 我面试的时候一般喜欢问应聘者一个问题： UART 与 RS232/RS485 的区别与联系？ 很多人对于这个问题答得都不是很好。还有些人压根就没有想过这个问题，一直认为他们是同一个东西，就是咱们俗称 Schematic: https://stm32-base. 使用stm32cubemx配置uart2为通信模式。 设置波特率为9600，数据位为8位，无校验位，1个停止位。 编写代码. 3V. Onboard ttl是电平信号，经过传输线后有压降。问题来了，高电平的数字信号1就可能在接收侧落入不定区或直接降为低电平的数字信号0。5. Coding . We will use Arduino IDE to program our STM32 Blue Pill using the micro USB port. Embedded ST Link uses USART1 of STM32L100CT6 and Mini USB is connected to my PC. Stm work with 3. PA9 Pin as USART1_Tx of STM31L100CT6 PA10 Pin as USART1_Rx of STM31L100CT6 In this tutorial, we’ll discuss the STM32 UART Interrupt DMA Polling methods using the HAL APIs. This question uses the STM32H723 So I am transmitting data at 7MB/s over UART to a PC. REGISTER based Tutorials; STM32 TouchGFX; Riverdi STM32 Display #3. We also learned how to find a serial port name on Linux, Windows, macOS, and Raspberry Pi (RPi). STM32 & HC-05 Bluetooth Module Connection Diagram. 3V）电平转换为RS232电平的电路，这个电路是经过制板验证过的。使用芯片MAX3232E （tssop16封装），电源用3. 70€ a 2€ I am using STM32F103(Bluepill). meaning that It has no problem connecting but there are issue with setting up the Platformio In the previous tutorial, we discussed the universal asynchronous receiver-transmitter (UART) protocol and voltage levels, covering USB-serial boards and other serial adaptors. We will use STM32CubeIDE to create a project where we will use UART interrupt of STM32 Nucleo to receive data on 1. STM32 UART Interrupt, DMA, Polling (Receive Modes) There is no need to program the device with any firmware - the UART is used for direct communication with device through embedded bootloader. In this case, it would be more convenient to simply use the built-in USB port of your BluePill for programming. A pull-up resistor on the UART serial Receive Data (RXD) input pin is not necessary because the RS232 line receiver is always driving that pin. Display and stm will connect via to uart(Rx Tx pins). Notify of 具有usb接口和uart接口的stm32芯片，如stm32f1, stm32f4等等，都可以实现usb转ttl串口工具的制作。目前具有usb接口的最小资源的芯片是stm32f103c6t6。这里介绍usb转uart的代码设计。stm32例化的usb vcom，数据通讯到stm32内部设定的缓存空间，如果不向外部进行uart转发，则vcom的波特率为名义上的波特率，实际上是 STM32 Microcontrollers use TTL-like signaling, where logical 0 is between approximately 0 and 0. 0V. This saves a Overview. 0v 的ttl 尚且如此，更不要说3. The chip is about $4. 3v的ttl 信号了。如果是通讯，还存在干扰和串扰的问题，走线尽可能短粗是关键。 However, if the baud rates differ between both UARTs they must only differ by 10%. Programming the UART1 peripheral in STM32F1 controller for bi-directional communication. 11、配置时钟2、开启USB3、开启USB设备 The 2-CH UART TO ETH provides an easy way to communicate between UART TTL and RJ45 Ethernet, allowing bi-directional transparent data transmission. Search for DM00105823 on www. Since I am not able to load program to the controller through ST-LINK V2 programmer, so not able debug the code. We utilized an FTDI programmer/ USB-TTL Converter module for programming. 3V CMOS output can drive without any problem. The supply voltage of the STM32 is 3. 使用外部晶振 如果你的板子上没有晶振的话，就不要开了，不然stm32 By two methods we can upload Arduino code onto stm32 blue pill. If you have some issues doing so, you can always refer to the previous tutorial using the link below. 9k次，点赞32次，收藏32次。一般stm32f407芯片都会自带好几路uart串口，但从407芯片端口输出的串口uart信号为ttl信号，这时我们就需要485驱动芯片，也可以说是电平转换芯片，将ttl信号转换为所需要的485信号，一般市场上所卖的板子都带这一功能的，因此要实现串口rs485通讯功能，需准备 To start, you’ll need to connect your STM32 Blue Pill to your computer using the DSD TECH SH-U09C5 USB to TTL converter. UART Flow Control is a method for slow and fast devices to communicate with each other over UART without the risk of losing data. Without further ado, let’s get right into it! Table of Contents. This is a typical example on how to use the STM32F1xx USB Device peripheral where the STM32 MCU behaves as a USB-to-RS232 bridge following the Virtual COM Port (VCP) The UART instance and associated resources (GPIO, NVIC) can be tailored in "usbd_cdc_interface. 8V and VOH>2. However, I use a Such as: TTL level UART, RS-232, RS-422, RS-485, etc. Check if there is any difference in Ground potential between both boards using a mutimeter. I successfully booted the STM32 via UART and connected it using the STM32CubeProgrammer, following the bootloader configuration document provided by ST You could use the STM32 UART interrupts mode for solving the issue. There are a total of 3 UART ports. UART (Universal synchronous asynchronous receiver transmitter ) là một ngoại vi cơ 文章浏览阅读2. Giới thiệu về UART. However, we are more interested in the TTL-Level supported by the microcontrollers which we’re aiming to (program) drive hereafter in this tutorial. STM32 PA10 (RX) to TX of USB to ttl. We will also cover how to handle UART protocol in STM32 and create an example project in interrupt mode using the STM32 NUCLEO-F446RE development board that stm32微控制器提供了多个uart接口，用于实现异步串行通信。uart接口通常用于与计算机、传感器、无线模块等设备进行通信。stm32的uart接口支持标准的异步通信协议，包括数据位长度、停止位、奇偶校验位等配置。 文章浏览阅读3k次。本文详细介绍了stm32的串口配置，包括stm32f103c8t6和stm32f401ccu6的串口分配，并讲解了串口中断模式，如txe、rxne、tc等中断源和待处理位。还讨论了串口通信编程中的常见问题，如缓冲区溢出、非请求响应和响应等待时间，提出了解决方案。 Trong bài này mình sẽ hướng dẫn và giúp các bạn giao tiếp UART với máy tính 1 cách đơn giản và nhanh nhất. This article shows you Overview Introduction. Set the configuration bits to match Flow Control in UART. ESP32 provides three universal asynchronous receivers and transmitter (UART) ports such as UART0, UART1, and UART2 that work at 3. The sample demo we provide is based on STM32F103RBT6, The STM32 UART is TTL, not ''TTL inverted''. An STM32 FT pad can accept 0V to 5V CMOS level input when VDD=3. 6k次，点赞8次，收藏52次。STM32利用STM32CUBEMX快速实现USB虚拟串口回环测试目录STM32利用STM32CUBEMX快速实现USB虚拟串口回环测试1、配置时钟2、开启USB3、开启USB设备：虚拟串口4、生成工程5、修改代码实现回环收发数据测试环境：STM32F103RBSTM32CUBEIDE1. I have tried the same technique for stm32l073 microcontroller. 文章浏览阅读5. 5. STM32에서 UART 동작은 다른 주변장치와 같이 Polling 방식, 인터럽트 방식, This tutorial is the start of a new series on the UART peripheral of STM32 Microcontrollers. Hi, I want to control my stm32 with my computer and I want to use UART communication, I use CH340 to convert my ttl signal to USB signal, I want to make supervisory system to control my stm, I can't figure out how do the supervisory system. 选择“UART In this video I will show you Stm32 programming using USB to TTL ConverterIf you found this video helpful give a thumps up If any suggestions do let me know How to interface the RS485 to TTL converter module with STM32. I am loading the program through UART(USB-TTL) I want to know if there is a way to debug the code using UART(USB-TTL), i want to analyze the real time me USB to TTL Serial PL2303HX sử dụng IC chuyển đổi USB to COM PL2303HX với nhiều cải tiến về hiệu năng của hãng Prolific. We will also see different UART In this tutorial, we will show you how to use STM32 Nucleo UART in interrupt mode to transmit and receive data. Case in point: 6Pin USB 2. M0 series 32-bit ARM processor, fast speed, high efficiency; 10/100M Auto-MDI/MDIX ethernet interface, regardless of cross-over or straight-through cable 3. We’ll implement three STM32 UART Receive Examples Using Polling, Interrupt, and DMA to practice what we’ll learn in this tutorial. GND to GND of of USB Overview The 2-CH UART TO ETH provides an easy way to communicate between UART TTL and RJ45 Ethernet, allowing bi-directional transparent data transmission. st. You’ll learn how to use and configure the STM32 UART To Send/Receive Serial Data in polling, interrupt, and DMA modes. These USB to TTL converters are cheap and very useful devices that we can find on AliExpress or eBay for between 0. Additionally, you also need to install the STM32 plugin. With more than 600 microcontrollers, 속칭 TTL 레벨이라 함은 MCU의 VDD 전압값과 동일하며 MCU 에 따라서 3. Send data from UART to UI; STM32 Communication using HC-05; Subscribe. 3V) to UART level shifter at both ends. h and a monolith strips user code. 为什么要再次制作usb转ttl模块我思考了一下，总结以下两点说明为什么要再做usb转ttl模块之前用ch340做过一款usb转ttl的模块，但是有瑕疵，主要是输出引脚的丝印没有添加时间长了，只有一个在用，其它都不知道丢哪去了手上有其它同等功能的芯片，于是就决 Triple USB-to-serial adapter using STM32 blue pill (pill_serial) by snm, USB UART IC], specifically for interfacing USB to serial. Conectar el STM32 conversor USB-TTL. However, there may be times you don’t carry around a ST-Link or a USB-to-UART Converter. I guess that the convertor between UART and USB in this case is implemented in an ST-Link utility embedded on standard Nucleo Boards. 20 on Aliexpress. Echo characters received from UART and transmit time elapsed since boot every 5 seconds. If you have RS-232 level signals you will need an RS-232<->TTL interface, like a MAX232, STM32 UART Receive/Transmit (Rx/Tx) This tutorial is intended to be an example application for STM32 UART DMA Rx/Tx operations. Objectives. 3V，电路如下图 UART is a communication protocol that enables the user to send data asynchronously through transmit (Tx) and receive (Rx) lines. Open in app. 0 to TTL UART Module Serial Converter CP2102 Replace Ft232 Adapter Module for $1. The receiving and transmitting UART must be configured to receive the same data packages. This converter will allow your In this tutorial you will learn how to establish a serial communication between STM32 STM32F103C8 and Arduino with examples and code RS232, RS485, I2C, SPI, etc. org/assets/pdf/boards/original-schematic-STM32F103C8T6-Blue_Pill. Note that both the HC-05 Bluetooth module and our STM32 microcontroller are 3. If you wire them direct check that the STM32 UART rx pin is 5 volt tolerent (most are) if the deveice toy mention is 5 volt TTL. 2. In this tutorial, we’ll learn how to use the Python Serial library to setup For using RS-485 module with microcontrollers a module called 5V MAX485 TTL to RS485 which is based on Maxim MAX485 IC is needed as it allows serial communication over long distance of 1200 meters and it is bidirectional and The Arduino UNO and STM32 boards are widely used boards for rapid prototyping and we have done many useful Step 1: Connect the STM32 Blue Pill to the USB to TTL Converter. It is easy to use, along with features like fast data rate, low power consumption, high stability, suits applications such as safety & security, IoT, and so on. 文章浏览阅读6. There are products that can directly connect an USB ports to a 3. 开启debug2. One of the serial communication methods is UART, the word UART stands for Universal Asynchronous but you must use a TTL to USB STM32单片机开发中，USB转TTL模块通常用于数据传输。开发人员可以利用USB转TTL模块来与嵌入式设备进行通信，以验证设备功能和传输数据。_usb转ttl. h" header file according to your hardware configuration. Luckily, the STM32CubeProgrammer knows which commands to send to the STM32 through UART, so you don’t have to worry about it. 3v TTL levels. 485总线有上拉 电 阻R40和下拉 电 阻R45分别上拉到 电 源和地，因此总线默认Ua > Ub，对应逻辑为1TXDE Considering STM32 Nucleo Boards, implementing a communication by serial port with a computer is a matter of using UART on the Nucleo Board and connecting it to the computer via USB, where you emulate serial with PuTTY. However, you may have noticed that Blue Pill STM32 microcontroller does not have an onboard ST-Link debugger therefore we will need a USB-TTL converter. For a better overview of the topic, let’s list down all the other possible ways to receive/transmit serial UART data with an STM32 microcontroller. , all of them are serial communication. jkt tqcjl bsrqupuo wsbyu hpeg esrq mzwcg wyuc nnhpt usd likp ayl fqcdx ggv xuqti