Read Voltage from Eastron SDM230 Modbus Smart Energy Meter with Modbus Protocol using Arduino Used: Eastron SDM230 Modbus Smart Energy Meter with Modbus Protocol: https://sigma-shop.com/sdm230-modbus-energy-meter.html KMtronic DINO Board (Arduino compatible with RS485 interface): https://sigma-shop.com/web-internet-ethernet-controlled-relay-board-arduino-compatible-rs485-usb.html Arduino code NOTE: RS485 Control pin: 3, SPEED 2400 /* *** KMTRONIC . . .
Made by Samuel Vestlin Published in Raspberry Pi and SparkFun https://www.hackster.io/samuelphy/energy-meter-logger-6a3468 . . .
The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC. Features: Board number manually through a DIP Switch placed near RS485 connector. Dimensions: KMTronic_8Relay_Dimension.pdf Required power: 12VDC / minimum 600 mA. Model: R4S8CRMB Specifications: Relays have Normally Open (NO) and Normally Closed (NC) Contacts each capable of switching . . .
Overview The aim of this library is to let users to leverage the power of modbus RTU protocol through RS485 on Android devices, specifically on the Ltouch multi-touch panels (picture on the right) and development boards. http://www.biemmeitalia.net/bmstore1x/index.php?main_page=product_info&cPath=2&products_id=24%20target= http://www.biemmeitalia.net/libraries/ . . .
http://www.electronhacks.com/2014/04/afordable-arduino-modbus-plc-or-rtu Not tested …. . . .