Can you use a microcontroller pin directly to drive a relay coil?

The RTS dry-contact Interface can be used to communicate between home automation, commercial controls, or other third-party systems and SOMFY's RTS products. Sep 4, 2024 ... I have seen products like Aqara T2 dry contact relay which (from my understanding) can operate a garage door or similar appliance without having current ... • 4 relay outputs (30 VDC, 0.5 A). • 4 digital inputs (dry contacts). • Dallas 1-Wire® interface, with support for 50*DS18B20 sensors, free programable for ... Aug 17, 2021 ... Also known as a passive contact, dry contacts don't have power or voltage supplied directly from the switch. Instead, it comes from another source. Alarm and Output Control Relays. Form 1-C contacts (NC/NO/COM). Remote status inputs and remote. ACO input. Opto-isolators (IN/COM) for dry contact* relays. A dry contact is a contact that is isolated from a power source. This means that, once a power source is wired to a dry contact, it becomes “wetted.” What is Dry Contact? ... A dry contact, also known as a “volt-free contact,” is a type of relay or switch contact that does not carry any voltage or current from ... When the device raises an alarm (e.g., Ethernet link down), the device reports the alarm's severity level (Minor, Major, or Critical) to the external alarm ... Connect dry contact relays and aftermarket smart garage door controller to Security+ 2.0 LiftMaster, Chamberlain or Craftsman opener with yellow “learn” button. Aug 10, 2017 ... Hello all, What are the best options out there for a z-wave or zigbee controlled relay that will work with SmartThings Hub?