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Sonoff 4CH Pro (R2) Supported? · Issue #2018 · arendst/Tasmota · GitHub
Sonoff 4CH Pro - ITEAD Wiki
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Review of Sonoff RF Bridge, Sonoff 4ch Pro, and Sonoff POW with Sonoff-Tasmota Firmware - CNX Software
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Sonoff 4CH 4 Channel Mains Control - Scargill's Tech Blog
Sonoff 4CH - ITEAD Wiki
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Sonoff 4CH Pro - Tasmota
Sonoff 4CH Pro - ITEAD Wiki
ESPHome with Sonoff 4CH Pro R1 relays curious beahavior - ESPHome - Home Assistant Community
