ESP32 S3 Home Automation Relay
Budget: ₹1,500 – ₹12,500 INR
I need an ESP32 S3 integrated with an 8-channel relay for home automation, specifically for lighting control.
Key requirements:
- Control lighting via:
- Remote control
- Voice commands
- Mobile app
- Seamless integration with existing home automation systems preferred.
Ideal skills and experience:
- Proficiency in ESP32 programming
- Experience with relay modules and home automation systems
- Mobile app development skills
- Familiarity with voice command integration
Project: ESP32-S3 8 Channel Smart Home Switch PCB
I need a compact smart home switch PCB similar to commercial retrofit smart switch modules.
Purpose:
Replace my current ESP + SSR relay setup with a smaller custom PCB.
Main Input:
- 230V AC input
- Designed for Indian home electrical system
- 24/7 continuous operation
Controller:
- ESP32-S3 WiFi module
- Firmware will be custom (MQTT based)
- Keep UART programming header for flashing firmware
- Keep EN/BOOT buttons if required
- ESP antenna area should be clear for good WiFi signal
Power:
- Compact isolated AC to DC power supply
- 5V supply for outputs
- 3.3V regulator for ESP32
- Do NOT use capacitive dropper power supply
Outputs:
Total 8 controllable AC outputs:
- 6 channels:
Use optically isolated TRIAC switching
Example:
MOC3063 optotriac + BTA06/BT136 triac
For LED lights and normal lighting loads
- 2 channels:
Use mechanical relays
For fan/socket/heavier loads
Inputs:
- Support 8 physical wall switches
- Use ESP GPIO directly or MCP23017/PCF8574 I2C expander
- Provide connector:
8 switch signal pins + 1 common GND pin
- Use pull-up input design
Extra:
- IR receiver input header
- Spare I2C header if possible
- Status LED
- Reset option
Protection:
- Fuse on AC input
- MOV surge protection
- Proper isolation between AC and low voltage side
- Safe creepage/clearance for 230V AC
- Snubber circuit for TRIAC outputs if required
- Prevent LED flickering/ghost glow
PCB:
- Make size as small as possible
- Target: around 80mm × 50mm or smaller if possible
- Should fit inside Indian modular switch box
- Prefer 2 layer PCB to reduce cost
- Use components available for PCB assembly
Deliverables:
- KiCad original design files
- Schematic
- Gerber files
- BOM
- Pick and Place files
Prototype:
- Need fully assembled PCBA samples
- Board should be ready for ESP firmware flashing and testing
Key requirements:
- Control lighting via:
- Remote control
- Voice commands
- Mobile app
- Seamless integration with existing home automation systems preferred.
Ideal skills and experience:
- Proficiency in ESP32 programming
- Experience with relay modules and home automation systems
- Mobile app development skills
- Familiarity with voice command integration
Project: ESP32-S3 8 Channel Smart Home Switch PCB
I need a compact smart home switch PCB similar to commercial retrofit smart switch modules.
Purpose:
Replace my current ESP + SSR relay setup with a smaller custom PCB.
Main Input:
- 230V AC input
- Designed for Indian home electrical system
- 24/7 continuous operation
Controller:
- ESP32-S3 WiFi module
- Firmware will be custom (MQTT based)
- Keep UART programming header for flashing firmware
- Keep EN/BOOT buttons if required
- ESP antenna area should be clear for good WiFi signal
Power:
- Compact isolated AC to DC power supply
- 5V supply for outputs
- 3.3V regulator for ESP32
- Do NOT use capacitive dropper power supply
Outputs:
Total 8 controllable AC outputs:
- 6 channels:
Use optically isolated TRIAC switching
Example:
MOC3063 optotriac + BTA06/BT136 triac
For LED lights and normal lighting loads
- 2 channels:
Use mechanical relays
For fan/socket/heavier loads
Inputs:
- Support 8 physical wall switches
- Use ESP GPIO directly or MCP23017/PCF8574 I2C expander
- Provide connector:
8 switch signal pins + 1 common GND pin
- Use pull-up input design
Extra:
- IR receiver input header
- Spare I2C header if possible
- Status LED
- Reset option
Protection:
- Fuse on AC input
- MOV surge protection
- Proper isolation between AC and low voltage side
- Safe creepage/clearance for 230V AC
- Snubber circuit for TRIAC outputs if required
- Prevent LED flickering/ghost glow
PCB:
- Make size as small as possible
- Target: around 80mm × 50mm or smaller if possible
- Should fit inside Indian modular switch box
- Prefer 2 layer PCB to reduce cost
- Use components available for PCB assembly
Deliverables:
- KiCad original design files
- Schematic
- Gerber files
- BOM
- Pick and Place files
Prototype:
- Need fully assembled PCBA samples
- Board should be ready for ESP firmware flashing and testing