Automation PCBs
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	Automation PCBs, Custom PCBs & Breakout Boards4-Channel Smart Home Automation PCB | ESP32 Based | Fully Assembled – Model TMT4N25-10% Automation PCBs, Custom PCBs & Breakout Boards Automation PCBs, Custom PCBs & Breakout Boards4-Channel Smart Home Automation PCB | ESP32 Based | Fully Assembled – Model TMT4N25- Model: TMT4N25
- Microcontroller: ESP32 (Wi-Fi + Bluetooth)
- Channels: 4 AC Load Outputs
- Control: Internet + Manual Switch
- Safety: Onboard Fuse (Overload & Short Circuit)
- Connectors: Heavy-Duty Terminals + JST for Switches
- Programming: USB (No External Programmer Needed)
- Build: Through-Hole Components
- Dimensions: 87 mm × 82.8 mm
 SKU: 0038
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	Automation PCBs, Custom PCBs & Breakout Boards4-Channel Smart Home Automation PCB | ESP32 Based | Unassembled – Model TMT4N25-20% Automation PCBs, Custom PCBs & Breakout Boards Automation PCBs, Custom PCBs & Breakout Boards4-Channel Smart Home Automation PCB | ESP32 Based | Unassembled – Model TMT4N25- Model: TMT4N25 (Unassembled)
- Microcontroller Support: ESP32 (not included)
- Channels: 4 AC Load Outputs
- Control: Internet + Manual Switch
- Protection: Onboard Fuse Support (user to install)
- Connectors: Pads for JST and Heavy-Duty Terminals
- Programming: USB (No External Programmer Needed)
- Component Type: Through-Hole (Unassembled)
- Dimensions: 87 mm × 82.8 mm
 SKU: 0039
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	Automation PCBs8-Channel Home-Automation PCB, Model-SMT8N25 (fully assembled)- Model SMT8N25 – ESP32-based 8-channel relay board for smart-home projects
- Controls up to 8 AC appliances; heavy-duty screw terminals resist arcing
- Built-in ESP32-WROOM with Wi-Fi + BLE; ready for Blynk, ESP-RainMaker, KME Smart, CADIO, Arduino IoT Cloud
- USB-C programming port (CP2102N auto-reset) — no external programmer needed
- On-board safety features: fast-blow fuse + optocoupler isolation between mains and logic
- Plug-and-play JST headers for wall switches, DHT sensor, IR receiver, and buzzer
- Exposed UART, 3.3 V, 5 V, GND pins for easy expansion
- Slim 142 × 70 mm PCB fits behind standard 6-/8-gang switch plates
 SKU: SMT8N25-0037
 
			 
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