stm32f103的CAN的时钟主频是36M,分9频就是4M,在除以(5 + 2 + 1)得到500K的波特率。 注意:stm32cubemx生成的CAN代码是不带过滤器的,需要自己手动添加。 CAN之数据帧格式 代码部分 CAN初始化 CAN_HandleTypeDef hcan1; CAN_FilterTypeDef sFilterConfig;//CAN初始化:/* CAN init function */ void MX_CAN_I...
RS232/RS422/RS485通信接口区别RS-232、RS-422与RS-485标准只对接口的电气特性做出规定,而不涉及接插件、电缆或协议,在此基础上用户可以建立自己的高层通信协议。例如:视频服务器都带有多个RS422串行通讯接口,每个接口均可通过RS422通讯线由外部计算机控制实现记录与播放。
Re: 计划做一款基于ESP32 S3的调试工具,具备工业485、CAN调试功能 memory 说: CAN芯片是 PHY吗? 见:ESP-IDF的twai_alert_and_recovery例子: | Supported Targets | ESP32 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 || --- | --- | --- | --- | --- | --- | --...
I’m working on a project with an STM32 microcontroller and an ESP8266 wifi modem (running AT firmware). My goal is to connect to the AWS IoT MQTT broker using a secure TLS connection. I have a few specific questions: Is it possible to establish a secure MQTT connection to AWS IoT us...
I have a question about this board ESP32-C6. Do you know how many Wi-Fi or ZigBee clients can be connected to this board. I want to connect 50+ ESP8266 in client mode, using Wi-Fi or Zigbee. I'm lokking some board or Access point which can handle that. ...
This library contains a framework to easily create web servers that can interface to all sorts of sensors and actuators. esp32 and esp8266. - cwi-dis/iotsa
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Environment OS: Ubuntu 22.04 LTS (Jammy Jellyfish) amd64 IDE: Thonny 3.3.14 and 4.0.0b3 MCU: DOIT ESP32 DevKit v1 (ESP-WROOM-32, chip ESP32D0WDQ6) Immediate solution Uninstall brltty sudo apt purge brltty -y Add user to dialout group sud...
devices, you can take their functionality to the next level by pairing a Home Assistant server with MCUs like theESP32boards,Arduinofamily, andRaspberry Pi Picoseries. But since interfacing them with Home Assistant can get excessively complicated, we’ve created a detailed guide to help you out...