Stm at commands.
This is the AT-Command STM32 LL Library.
Stm at commands ----- AccessPort terminal screen: ----- Send part 1: 11 EE /* Comment: command code; checksum: 1’s complement of the command code = EE */ Output 1: 79 /* Comment: acknowledgement */ Send part 2: 08 00 00 00 08 /* Comment: 0x08000000 address MSB to LSB; checksum: XOR: 08, 00, 00, 00 = 08 Feb 14, 2012 · • Accepts analog signals, digital signals and RS-232 serial commands • Step input signal smoothing • Q programming over Ethernet and Ethernet/IP models • RS-422/485 communication models • Optional encoder feedback • STM23S/Q-2 delivers up to 125 oz-in • STM23S/Q-3 delivers up to 210 oz-in 3 AT commands. The AT command set is a standard developed by “Hayes” to control modems. Apr 30, 2022 · The guide indicates as a possible solution also for the ESP8266 products the following: <<When the host MCU sends an AT command to the ESP32 device, there is no response. The SIM900 module works on the AT command set. boards running ESP8266 AT-command shields. For this concept, the Cortex®-M4 application microcontroller contains an AT project able to manage the concepts of GAP, GATT, security and low-power. There are a couple of ways to get into Command Mode: 1- Connect the KEY pin high before applying power to the module. Solution Makerfabs latest MaUWB module solves this problem by integrating an STM32 controller running default firmware, which is carefully designed& adjusted and have been proved reliable in files applications, to deal with the DW3000 multiplexing, that the ESP32 controller can get the UWB arranging result simple by AT commands. Click on [Finish]. The AT command set is a standard developed by Hayes to control modems. Jul 2, 2014 · AT命令（Attention Commands）是一系列用于配置和控制调制解调器及其他通信设备的标准指令集。它们最初由Hayes公司开发，用于拨号调制解调器，但随着时间的推移，AT命令已经成为一种广泛接受的接口标准，适用于各种类型的通信模块，包括GSM、GPS、Wi-Fi、蓝牙等。 Sep 26, 2023 · For details on the “-ob” command format, refer to section 3. When the bootloader receives the command, it transmits the protocol version and the supported command codes to the host, as shown in Figure 2 . println("AT+CMGF=1"); //Sets the GSM Module in Text Mode Mar 18, 2024 · stm32发送at指令是嵌入式开发中的一个常见任务，尤其在使用gsm模块或者esp8266等无线通信模块时。at指令是一系列控制命令，用于配置和操作这些设备，例如设置网络连接、拨打电话、发送短信等。 Jul 29, 2024 · @MatheusMarkies > I used this modem in my Arduino system Arduino serial library behaves differently, it does buffering for you. The OptByte field definitions within the “-ob” command are not explained in UM2237, but you can find them by inspecting the “Option bytes” tab in the STM32CubeProgrammer graphical interface, as the definitions in the “-ob” command match those here. Sep 1, 2023 · Hello, I want to configure the STM32WB1x using AT commands. Contribute to stevstrong/STM32_ESP01_WebServer development by creating an account on GitHub. And i sended the AT\r\n command from the SMT to the ESP and on my pc in putty I got the OK command back, so the ESP is Jul 29, 2024 · I'm developing a system with a GMS module, where AT commands are sent to the module via an STM32. com/@J4D3N23? BG96 AT Commands Manual LTE Module Series Rev. Brackets themselves do not appear in the command line. This is the AT-Command STM32 LL Library. 3. pdf: 2000 - 2999 Telecommunications: NAVSEA ADVISORY PROCESS: 12/27/2022: 02400. AT commands are instructions used to control a modem. That is an important concept to grasp and always keep in mind : when the user enters a command, STM Shell will simply call the relevant command function repeatedly, until that function transitions the shell back to the prompt. The important thing to remember about AT Commands is that you need to pay attention to the responses to the commands you send - don't send the next command until the device has confirmed that it has completed the previous one. Similarly, the ‘AT’ command is sent to the modem as an attention command to communicate, and a basic response is ‘OK’ from the modem. Developer Package [edit | edit source] Enter the following commands: Powered by Zoomin Software. In many situations, you may need to change some of the default configurations or their values. bin, and apparently, it's not designed to function usin Oct 8, 2018 · If that works out well (i. . We will use the LCD to observe the behaviour of the device. Contribute to MinjunHuang/ATFram development by creating an account on GitHub. , Ltd. May 20, 2024 · AT commands, short for Attention commands, are a set of instructions used to control modems. 3 Date: 2019-01-25 Status: Released stm. I can enter AT Command Mode, but i can't send any AT Commands to module. This should be done before adding new data to avoid inconsistencies. g. NOTE The stm commands appear only when LunaCM's active slot is set to the administrative partition. • For Q applications use Q Programmer both for creating stored programs and for sending commands to your drive. The command set consists of a series of short text strings for performing operations such as joining, data exchange and parameters setting. Download the video code on Github: https This user manual is structured as follows: • Overview of HAL drivers • Overview of low-layer drivers • Cohabiting of HAL and LL drivers • Detailed description of each peripheral driver: configuration structures, functions, and how to use the given API to build command, and launches the embedded MCUFinder : 1. 一款管理AT命令通信交互组件， 适用于Modem、WIFI模块、蓝牙等使用AT命令或者ASCII命令行通信的场景。 Nov 5, 2019 · I am using HC-05 bluetooth module and STM32F407. The ACI commands should be sent over an SPI connection. The ESP8266 driver was developed MS. Then AT+BIND command is used to Bind the module to the slave. Stepper Drives • This series includes all ST5/10, STF, STM, SWM, STAC5 and STAC6 drives. When subparameter is not given in AT commands which have a Read command, new value equals to its previous value. In general, AT MQTT commands will be responded within 10s, except command AT+MQTTCONN. Enable TX DMA is optional. ESP8266 is the name of the microcontroller developed by Espressif Systems which is a company based out of shanghai. I send the command but I don't see no reply. If a command is received the ACI will check whether the command is for the host or for the controller. You need to add a backslash before them. This project demonstrates how to set up and use an STM32H750 microcontroller to communicate with an FSC-BT1036 Bluetooth module using AT commands. As far as the STM32 (or any other microcontroller) is concerned, Quectel AT Commands are no different to any other AT Commands - so you can look at any of the huge number of AT Command examples on the interwebs ESP32/ESP8266 at-command driver for Stm32. The local use facilities (local0, local1, local2, local3, local4, local5, local6, and local7) are not reserved for specific message-generating sources, and can be used for sending syslog messages. AT+QENG Switch on/off Engineering Mode Test Command AT+QENG=? Response +QENG: (list of supported <celltype>s) OK Write Command Entreprise publique, la Société de transport de Montréal assure les besoins de mobilité de la population en offrant un réseau de transport collectif de bus et métro. Sunton ESP32 2. The below statement sets the GSM module in the Text Mode by sending AT command (AT+CMGF=1). when placed in CSTM command files (scripts. The ESP32 runs the official AT firmware provided by Espressif, while the STM32 handles sending commands and processing responses. For a personal project i want to make de device that tracks a crypto valuta. I have a ESP8266 with the AT firmware, and I could send commands via FTDI using putty. As described in the schematic : i want making my stm32 send AT command to esp8266 through usart1 (Tx1), and get Jan 8, 2010 · MaUWB_DW3000 with STM32 AT Command. Powered by Zoomin Software. To test the module, the “AT” command is sent. Other Sites. 020A. Oct 25, 2018 · ESP8266 Wi-Fi Module. 3 AT commands. 074-613-P1D STM-2 Operating Manual - INFICON Jan 19, 2020 · Welcome to the WeeW - StackWelcome to this new video for the STM32F1 microcontroller, where the code is from scratch. If there well be an interest, I can do a generic library (like FATFS) to make usable on others microcontrollers too. If not, you're going to have a lot of fun converting values to characters. The problem is, since each AT command depends on situation responds different amount of data, it's hard to find when to stop receiving and start parsing. st. The UART baud rate is: 115200 baud. STM allows you to verify that an HSM has not been tampered while in transit or storage. J4D3N Channel : https://youtube. Most people call ESP8266 as a WIFI module, but it is actually a microcontroller. 15 of UM2237 (STM32CubeProgrammer Software Tool User Manual). AT stands for attention. [5] Application note LoRaWAN® AT commands for STM32CubeWL (AN5481) [6] User manual Description of STM32WL HAL and low-layer drivers (UM2642) [7] IEEE Std 802. May 31, 2021 · i'm trying to communicate with a Wifi module (esp8266) using STM32F103, on keil IDE. AT+XX$XX used to run an instruction where first the app is specified and then the actual instruction is specified, such as AT+CL$SCAN (in client mode, I request a scan). Add atc_callback() into USART IRQ callback. 4TM - 2011. The command is used to switch on/off the mode. By sending specific AT commands to the HC-05 module, you can configure it or retrieve basic information about it, such as its name, baud rate, PIN code, role, and so on. Here we use the Address of the Slave module, that we got in the beginning. Possible Cause The MAC address table is full. Contribute to nimaltd/esp development by creating an account on GitHub. If the command is a HCI command, i. (1) ® ® ® (1)® ® ® Mar 31, 2020 · Board: STM32 NUCLEO F103RB (MB1136 C-01) Wire cable with ESP8266: UART1_tx (PA9) -> RX_ESP8266 and UART1_rx (PA10) -> TX_ESP8266 Hi all, I try to send AT command between board and ESP8266, without success. The following sections give an overview of each platform, along with the setup process. 6. In this article, there is some more information on how to connect the ESP32 module with STM32 to add Wi-Fi and Bluetooth connectivity to the STM32 series . Now we are lookin [5] Application note LoRaWAN® AT commands for STM32CubeWL (AN5481) [6] User manual Description of STM32WL HAL and low-layer drivers (UM2642) [7] IEEE Std 802. I tried sending just "AT" to see if it works with the pre-flashed firmware, but I received no response. View Startup Programs ‘wmic startup get caption,command’ Function: To check what programs launch on startup. These commands originated from the Hayes command set and have become essential for IoT (Internet of Things) devices, especially for managing WiFi modules. 5 supporting Qwiic and SPI. Mar 20, 2018 · AT Commands are simply text strings: you send text strings - called 'Commands' - to the modem; the modem sends text strings - called 'Responses' - to you. STM is optional. ESP Tx -- FTDI Rx. After a l The AT+CMODE=0 command allows the Master to pair with a fixed Address Slave. This driver was focused in a STM32 but it can be used with any UART Connection who supports C coding with small changes. sprintf(cmd, "AT+QCGDEFCONT=\"IP\",\"v-internert\"\r\n"); STM32 HAL library for SIM800 release MQTT client over AT command - leech001/SIM800MQTT. 15. Right now I'm at a loss as to why this isn't working. 003. This updated version introduces AT command slave functionality, allowing the STM32 to process commands like AT+LED=ON and respond (e. When I load the code to the STM and use Tera Term to send data to the STM it should be able to send AT commands to the ESP, but it isn't working. 002A. May 31, 2022 · AT Commands are just text strings. How to use: Type wmic startup get caption,command, and press Enter. In a context of LoRa modem, the Hayes command set is a variation of the standard AT Hayes Enter the following commands to install Devmem: apt-get update apt-get install devmem2 For more information about apt-get, see the Package_repository_for_OpenSTLinux_distribution article. S my Sep 14, 2021 · Hello everbody! Im new to the STM32 platfor, and i want to learn about it. The commands for are AT+KHTTPGET and AT+KHTTPPOST for retrieve and send data respectively. Below the Product Link ：MaUWB_ESP32S3 with STM32 AT Command Wiki Link : The latest UWB module that solves multiple anchors& tags mutual conflicts, support max 8 Anchors + 64 tags in application, to create a multi-anchor multi-tag positioning system, and add the ability to set the Anchor antenna delay Welcome to the ESP32-STM32 AT Command Interface repository! This project facilitates communication between various STM32 boards and the ESP32-C3 Dev Kit v2 using AT commands over UART. 7 – 2010-05-07 Optional subparameter of a command or an optional part of TA information response is enclosed in square brackets. Serial1. AT Command Mode. Webserver using ESP01 with AT commands. c file: Apr 7, 2017 · Hello All, I am working STM32 Microcontroller I want to interface Quectel EC25 modem with STm32 to send data to server by TCP What are the steps ? for AT Commands ? I am able to send AT command and getting response OK Even Network registration is Ok by - AT+CEREG=1 Getting Signal Strength by - Contribute to CanGuveren/STM32-ESP8266-MQTT-AT-Commands development by creating an account on GitHub. By using these commands, a GSM module can be used to send SMS using GSM and perform many other tasks. Feb 27, 2020 · This is simple yet complete WebServer library for AVR, Teensy, SAM DUE, SAMD, STM32, etc. So I’m thinking about these commands: Basic commands for settings up ESP AT Commands Reference Guide 80000ST10025a Rev. Enable USART and enable interrupt. pdf: 2000 - 2999 Telecommunications: ELECTROMAGNETIC ENVIRONMENTAL EFFECTS AND SPECTRUM SUPPORTABILITY PROGRAM AND PROCEDURES: 12/3/2021: 03030. How to use this Library: Select "General peripheral Initalizion as a pair of '. Feb 10, 2025 · Use case: Discover new commands and learn their functions. It contains ST system-level package chip STM32WLE5JC, which is the world first SoC integrated with the combo of LoRa® RF and MCU chip. e. AT+QENG Switch on/off Engineering Mode The engineering mode is designed to report the information of serving cells, neighbour cells and Packet Switch parameters. I tried something in main. Modbus and NMEA0183. Jun 6, 2019 · Hello, I used the following "Target Software Startup Script" in the debug configuration in Atollic TrueStudio (this is necessary since we're using a bootloader and our application binary which I would like to debug is not placed at the beginning of the STM32 flash): How to enter this in STM32Cub Aug 12, 2013 · I am implenting that feature in my device but i am facing problem while using POST and GET commands related to HTTP. Navigation Menu Toggle navigation. if there is more code you want I can get that to you P. BG96_AT_Commands_Manual_V2. But the command AT+MQTTCONN may need more time due to the packet retransmission in bad network environment. The AT Command Library (ATC) simplifies UART communication for STM32 microcontrollers with an event-driven approach and debug capabilities. Here is my try: Feb 4, 2020 · I'm able use the AT firmware to configure the ESP when using an Arduino Uno/PC terminal, but want to essentially do the same via the STM board. This repository provides an example implementation of MQTT (Message Queuing Telemetry Transport) protocol for STM32 microcontrollers using the SIM900 module through AT commands. com DevAcademy DevZone There are 1 incomplete or pending task to finish installation of Semantic MediaWiki. If enabled, the client is not allowed to associate with any AP in the network. The ACI interface also supports HCI commands. However, be aware that immediately after you issue this command, the HC-05 will switch to using the baud rate, stop bits and parity settings you last set in command mode using the AT+UART command. 3 inch 800*400 IPS with Touch Mar 23, 2021 · For specific details of Quectel's AT commands, you will have to study the Quectel documentation. Just for fun. Also i just connected like so: SMT Tx -- ESP Rx. com DevAcademy DevZone You can check which architecture a Linux computer is using by running the following command in the terminal: arch The terminal outputs the architecture that the Operating System (OS) is running on. MQTT is a lightweight messaging protocol commonly used in IoT (Internet of Things) applications to enable communication Jan 7, 2025 · AT命令（Attention Commands）是一系列用于配置和控制调制解调器及其他通信设备的标准指令集。它们最初由Hayes公司开发，用于拨号调制解调器，但随着时间的推移，AT命令已经成为一种广泛接受的接口标准，适用于各种类型的通信模块，包括GSM、GPS、Wi-Fi、蓝牙等。 Apr 4, 2019 · This function is used to send SMS to a number. That’s what we use the Command Mode for. For example, it could be x86_64 or aarch64. In this case, I'm having problems with the AT+CSTT command, which was giving me an ERROR. This application note details the interface, AT commands definition, some use cases and the embedded software There are three available instruction behaviors: AT+XX used to switch BLE app, such as AT+SV. 4 Read Memory command. If sprintf or some variant is available to you, just build your commands using that then point your uart send command at the buffer you stored your command in. a command for the controller, In this video, i show you how to go into the RFL Workspace for free, so you can enter and train skill moves etc. standard host controller interface (HCI) instructions and vendor-specific application command interface (ACI) instructions. proper command), and the semantics are right (expected command in this context, with proper parameters), one could advance the protocol state machine accordingly. The library supports 1. I am trying to change the name of the bluetooth module. Commands 2. For more details please contactZoomin. I am using AT commands to implement HTTP feature in my device. For example, if the router fails to access to the internet, the command AT+MQTTPUB will respond within 10s. Which is the format I have to use to send the commands? Do I use char variables? GitHub Repo Documentation Description; SparkFun_Particulate_Matter_Sensor_Breakout_BMV080: SparkFun Particulate Matter Sensor Breakout BMV080: A breakout board for the Bosch Particulate Matter Sensor BMV080 PM2. We are able to send/receive uplink and downlink from STM32L4 end device to LoRaWAN server using the STM32WL chipset. So I’m thinking about these commands: Basic commands for settings up ESP This command allows the user to get the protocol version and the supported commands. 2. I do not envy you that. The functions are similar and compatible to ESP8266/ESP32 WebServer libraries to make life much easier to port sketches from ESP8266/ESP32. The commands required to send an SMS are explained in the code. stm • Run a command file within stm: File -> Run Command File • Invoke a command file when starting stm: Dec 12, 2015 · Hello everyone, ESP8266 with AT commands software from Espressif is now more stable than every, so I’m thinking to make a “strong” AT commands parser library for STM32 series of microcontrollers. Sign in Product and to test commands that will be used in the final product. com. In this scenario, we will use simple AT commands and try to display if their execution finished properly. 1. This introductory scenario shows how to use AT commands to control the ESP32-C3 WiFi module connected to the STM laboratory stand. I send the AT\r\n command, but the interrupt callback is not called. Solution After waiting for 180 seconds, learning is enabled automatically. println(command); // Print command to Serial Monitor SERIAL_AT. Skip to content. pdf: 3000 - 3999 Operations Contribute to Houzich/ESP32-AT-Command-Driver-for-STM32 development by creating an account on GitHub. SIM900 AT Commands response parsing. c/. But it didn't work. Select the target MCU or board and go to the next page 2. WiFi Client, STA and AP mode 2. This application note describes the set of AT (attention) commands for a multi-app AT project implemented on STM32WB Series expansion board with STM32WL5M embed a set of AT commands for the LoRa RF test and LoRaWAN communications. Low-Rate Wireless Personal Area Networks (LR-WPANs) [8] Application note Long packet with STM32CubeWL (AN5687) Use this command to specify the IP address of the remote logging server, facility, severity, and the type. A severity 2 syslog message, STM_LIMIT_REACHED, should have been received. If the client is connected to the network when you denylist, a deauthentication message is sent to force the client to disconnect. STM_LOOP_DETECT, should have been received. This command is used to manually disconnect a client from an AP or control the denylisting of clients. ) For Example, you can… • Pipe commands directly into CSTM: echo “selall ; vop querynondes ; verify ; wait ; veractlog” | cstm > outfile • Redirect a command file to cstm: cstm < script. You can easily interface GSM with a microcontroller by using AT commands. An administrator or user with sufficient rights can complete it. Sep 17, 2019 · Okay i added the int main block where everything is initially initialised. println(command); // Send command over serial Dec 4, 2023 · 5. Follow the Nov 8, 2024 · hello everyone, I have a problem, I have a custom PCB with an STM32L011, I have a sim800l module connected, I send the AT commands via LPUART1 and I want the response on UART2, but as an answer I got AAAAAAAAAAA and after a while Call Ready,Call Ready,Call Ready where is the problem? my main. NAVAL SEA SYSTEMS COMMAND ENTERPRISE SAILOR OF THE YEAR PROGRAM: 7/6/2021: 02319. Sep 25, 2024 · // Function to send AT commands and return the response String sendData(String command, const int timeout, boolean debug) {String response = “”; // Local variable to store the response. Oct 17, 2020 · Now the process is, sending AT command and then, by enabling the RXNE, waiting to receive data and accumulating those received bytes into a char buffer. I checked the firmware flashed on the chip, which is STM32wb1x_BLE_Stack_full_fw. Nov 19, 2018 · I have already set up the UART in the B-L072Z-LRWAN1 and I am able to transmit bytes of information, but I am not sure how to send AT commands. Enable FREERTOS is optional. 1) www. SERIAL_LOG. How to get user response using ATD commands GSM modem in c#. This brings up the STM32CubeMX window for configuring the peripherals, clock, middleware, and the power consumption. 7 %µµµµ 1 0 obj > endobj 2 0 obj > endobj 3 0 obj >/ExtGState >/XObject >/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 9 0 R] /MediaBox[ 0 0 612 792 Jan 30, 2023 · Wio-E5 is a low-cost, ultra-low power, extremely compact, and high-performance LoRaWAN® Module designed by Seeed Technology Co. You can simply insert the microSD ESP32 AT command module into any STM32 development board with SDIO mode microSD card connector and you should be good to go. Use case: Discover new commands and learn their functions. Configure, or display information about Secure Transport Mode (STM). Syntax: net user username password /add 9. Apr 8, 2021 · Now, let’s jump to the main function. Low-Rate Wireless Personal Area Networks (LR-WPANs) [8] Application note Long packet with STM32CubeWL (AN5687) May 30, 2021 · i'm trying to communicate with a Wifi module (esp8266) using STM32F103, on keil IDE. Each character array is holding a command for the GSM module. A severity 2 syslog message, STM_LEARNING_RE_ENABLE, should be received. I had used this method with e. AT Command driver to use the ESP8266. The way to approach this is to start by getting familiar with the commands & responses by typing & observing manually at a terminal. %PDF-1. The project is built Jun 17, 2024 · Hello Developers, In our current project, we are using STM32L496 mcu along with STM32WL chipset loaded with AT Slave example to communicate with LoRaWAN network. As you’ll note in the above code, we declared some character arrays. In AT commands which do not store the values of any of their Jun 7, 2020 · AT命令（Attention Commands）是一系列用于配置和控制调制解调器及其他通信设备的标准指令集。它们最初由Hayes公司开发，用于拨号调制解调器，但随着时间的推移，AT命令已经成为一种广泛接受的接口标准，适用于各种类型的通信模块，包括GSM、GPS、Wi-Fi、蓝牙等。 • Command-line toolset for STM32 MCUs (DB4839), STM32CubeCLT data brief • STM32CubeCLT installation guide (UM3089 ) • STM32CubeCLT release note (RN0132 ) Screenshots in this document The screenshots provided in Section 2, Section 3, and Section 4 are only examples of the tool usage from a command prompt. AT command is sent to GSM module indicating the message text mode and on which number the message needs to be sent. The SPI protocol is described in a later section. Im not sure why the ESP data is not coming in. The driver was developed taking count the interruptions possible in the UART of the STM32 Microcontroller. These commands are similar to the ones used with old modem devices. Nordicsemi. Enter a project name and select the setting wanted for the project in the dialogue boxes 3. In a context of LoRa modem, the Hayes command set is a variation of the standard AT Hayes commands 3 AT commands. Now I could like to use the STM32 to do that. In a context of LoRa modem, the Hayes command set is a variation of the standard AT Hayes Creating the AT commands is simple enough. The command set consists of a series of short text strings for performing operations such as joining data exchange and parameters setting. 8 inch 240*320 TFT with Touch; Sunton ESP32-S3 4. This will set the module into command mode at 38400 baud. h' file per peripheral" on project settings. What is the reason? A terminator (“ATrn”) must be added after an AT command when the host MCU sending AT commands to an ESP32 device. Please see Check Whether AT Works. As described in the schematic : i want making my stm32 send AT command to esp8266 through usart1 (Tx1), and getting the esp response (Rx1), then display the esp response on computer serial monitor using usart2 ( Tx2 AT commands are simple text-based commands that follow the “AT” prefix (“AT” meaning ‘attention’). Home; Guidance; Cooperator. I am able to use other commands like AT+KHTTPCFG, AT+KHTTPHEADER, etc. AT is the abbreviation of ATtention. Sep 14, 2021 · But I can't recieve data from the ESP. AT Commands Format AT指令解析框架，开发环境STMS32F103ZE，HAL库，通信模组使用移远BC28. Other function is where we're setting huart6 ( my bluetooth pins) If you look carefully I added a comment and changed a value in there you will see the "ORIGINAL" comment in there and I have changed it, compiled tried both and still was able to get nothing. , +OK), making it ideal for IoT and embedded applications. 1. The colons(:) in the address should be replaced with the comma(,). Mar 4, 2019 · How to C# send AT command to GSM modem and get response. Nov 18, 2021 · Double quotes within strings need to be escaped. >> Dec 12, 2015 · Hello everyone, ESP8266 with AT commands software from Espressif is now more stable than every, so I’m thinking to make a “strong” AT commands parser library for STM32 series of microcontrollers. Other people who answered noted that your STM32 UART code is a bit naïve, so it isn't obvious that one character is missing in TX. The pairing pin is same as the slave “1234”. The STM32H750 acts as an AT client, sending commands to and receiving responses from the FSC-BT1036, which operates as an AT server. Parsing input streams is an art and a science. Snippet 4: AccessPort terminal screen view for the "Read Memory" command. And, oddly, this command does not echo back an " OK " response even if you've set the baud rate to 38400 using the AT+UART command. dfpuifvodhvrvjwpbrdwzxavytkmqdfwaejvhpopdsdytqggaykvstipivzeifnfxrqthopymmkpjnzfigb