RS485 Shield for OLEDUINO v2
https://www.electronics-lab.com/project/rs485-shield-for-oleduino-v2/
This is a fault protected RS485 shield for OLEDUINO-V2, SN65HVD1782 chip used as RS485 transreceiver, designed to survive overvoltage faults such as direct shorts to power supplies, mis-wiring faults, connector failures, cable crushes, and tool mis-applications. The devices are also robust to ESD events with high levels of protection to the human-body-model specification. The devices […]
Isolated RS-232 to RS-485 Signaling Converter
https://www.electronics-lab.com/project/isolated-rs-232-to-rs-485-signaling-converter/
This project provides a solution for converting RS232 signaling to RS485 signaling. This allows long-distance communication since the range supported by RS232 is normally less than 50 feet while RS485’s range can exceed 1000 feet. The design features an RS232 transceiver, an RS485 transceiver, a multivibrator, and a digital isolator with integrated power to implement […]
Isolated RS485/RS422 Transceiver with Integrated DC-DC Converter
https://www.electronics-lab.com/project/isolated-rs485-rs422-transceiver-with-integrated-dc-dc-converter/
The project presented here is a galvanically isolated differential line transceiver with a built-in isolated DC-DC converter for TIA/EIA RS-485 and RS-422 applications. Both signal and power paths are isolated per UL1577 and are qualified for reinforced isolation per VDE, CSA, and CQC. The low-emissions, isolated DC/DC converter ensures the final system is capable of […]
4 Channel High-Speed – Robust-EMC Reinforced Digital Isolators
https://www.electronics-lab.com/project/4-channel-high-speed-robust-emc-reinforced-digital-isolators/
The project described here is a high-performance, quad-channel digital isolator with a 5000VRMS isolation rating as per UL1577. The ISO7740 IC provides high electromagnetic immunity and low emissions at low power consumption while isolating CMOS or LVCMOS digital I/O s. Each isolation channel has a logic input and output buffer separated by a double capacitive […]
RS485 Shield For Arduino Nano
https://www.electronics-lab.com/project/rs485-shield-arduino-nano/
Arduino Nano RS485 shield will help you to transmit and receive serial data using the twisted pair RS485 network. The module provides half-duplex communication. LED D1 indicates receive data, D2 Transmit LED, J1 jumper is optional and not in use in this application. DI/RE connected to D2 of Arduino digital pin which enables Receiver Output […]