circuitdigest.com

RS-485 MODBUS Serial Communication using Arduino UNO as Slave

Modbus is a Serial Communication protocol which was discovered by Modicon in 1979 and it is used for transmitting data over serial lines between the industrial electronic devices. RS-485 Modbus uses ...
note

RS485/Modbusなんでもござれ！多彩なセンサーをLoRaWANでIoT化

「このセンサーの値をクラウドに上げたい」「既存の計測器をIoT化したい」——そんなご要望にお応えするための常套手段 ...
GitHub

_RS485_04_modbus_read_input_registers.ino

* This sketch shows the use of the Modbus communication protocol over * RS-485 standard, and the use of the main functions of the library. * Modbus allows for communication between many devices ...
PR TIMES

Raspberry PiにRS-485/422Aポートを追加可能、Modbusマスタ／スレーブ機能 ...

ラトックシステム株式会社（本社：大阪市西区、代表取締役：近藤 正和、以下ラトックシステム）は、ラズパイ拡張用のI2C 絶縁型RS485/422A ボード「RPi-GP70」を、2023年2月下旬より出荷開始いたします。 RPi-GP70は、Raspberry Pi の GPIO 40Pinコネクタに接続する絶縁 ...
CNX Software

Waveshare 8-channel RS485 to Ethernet industrial serial servers work as a Modbus & MQTT ...

Waveshare has launched the 8-Channel RS485 TO ETH (B) and 8-Channel RS485 TO POE ETH (B) industrial Ethernet serial servers designed for bi-directional transparent data transmission between RS485 and ...
GitHub

SPI-RS485 Bridge: Modbus Host Emulation Using PIC16F15244 Microcontroller

The RS485 communication with Modbus protocol is mostly used in the industrial sector for its main functions, such as balanced line communication, multi-drop facility ...
note

工場データを自作IoTで見える化！XIAO ESP32-C3で三菱インバータの電流 ...

工場設備のモーターの速度を制御する時に使用する事が多いのがインバータ。 これを使えば、モーターの**回転方向（正転・逆転）や回転速度（周波数）を柔軟に制御できます。 今回は、そんな三菱電機のインバータをESP32（XIAO ESP32-C3）とMAX485モジュールで ...
CNX Software

Seeed Studio introduces ESP32-C3-based Modbus Vision RS485 and SenseCAP A1102 LoRaWAN ...

Seeed Studio has recently released the Modbus Vision RS485 and SenseCAP A1102 (LoRaWAN) outdoor Edge AI cameras based on ESP32-C3 SoC through the XIAO-ESP32C3 module for WiFi and the Himax WiseEye2 ...