Shelly Plus 1

Relay Module
Shelly Plus 1

ESP32-C3 based WiFi/BLE smart relay module with 16A switching capacity, dry contact input, and compact DIN-rail or in-wall form factor. Flashable with Tasmota or ESPHome for local smart home control.

ESP32-C3400KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 5.0
~$12View

Shelly Plus 2PM

Relay Module
Shelly Plus 2PM

ESP32-based dual-relay WiFi/BLE smart switch with per-channel power monitoring via ADE7953, cover/shutter control mode, and 10A per channel. Flashable with Tasmota for local roller blind and dual ligh

ESP32520KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 4.2
~$22View

Arduino Opta WiFi

Industrial Controller
Arduino Opta WiFi

Industrial micro PLC with STM32H747 dual-core Cortex-M7/M4, WiFi, BLE, Ethernet, 4\u00d72.3kW relays, Modbus TCP/RTU, hardware security, DIN rail mount, and IEC 61131-3 PLC programming — co-developed

ARM Cortex-M7 @ 480MHzCortex-M4 @ 240MHz1MB SRAM2MBWiFi 802.11 b/g/nBLE BLEEthernet 10/100 Mbps
~$168View

Arduino Opta Lite

Industrial Controller
Arduino Opta Lite

Entry-level industrial micro PLC with STM32H747 dual-core Cortex-M7/M4, Ethernet, 4\u00d72.3kW relays, Modbus TCP, hardware security, DIN rail mount, and IEC 61131-3 PLC programming — the affordable p

ARM Cortex-M7 @ 480MHzCortex-M4 @ 240MHz1MB SRAM2MBEthernet 10/100 Mbps
~$127View

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