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**Request for PCB Design and Fabrication**


**Project Title:** Smart Home Temperature and Humidity Monitoring System


**Date:** January 30, 2025


**Requester:** John Doe
**Company:** HomeTech Innovations
**Email:** john.doe@hometech.com
**Phone:** (555) 123-4567


**Project Overview:**
We are developing a Smart Home Temperature and Humidity Monitoring System that will continuously monitor and report temperature and humidity levels in a home environment. The system will use a microcontroller to process sensor data and communicate with a central server via Wi-Fi.


**Project Requirements:**


1. **Microcontroller:**
   - ESP8266 (NodeMCU)


2. **Sensors:**
   - DHT22 Temperature and Humidity Sensor
   -- Or a component that is comparable.


3. **Power Supply:**
   - 5V DC input, on a standard 2.54, and a 5v barrel jack, common size.
   - Onboard voltage regulator to step down to 3.3V for the ESP8266

4. **Communication:**
   - Wi-Fi module integrated with ESP8266

5. **Inputs:**
   - DHT22 sensor data (temperature and humidity)

6. **Outputs:**
   - Wi-Fi communication to send data to the central server
   - Status LED to indicate power and data transmission

7. **Additional Components:**
   - Voltage regulator (AMS1117-3.3)
   - Capacitors (10uF, 100nF)
   - Resistors (10kΩ pull-up for DHT22)
   - Status LED with current-limiting resistor

**Design Specifications:**
- PCB dimensions: 50mm x 50mm
- Single-sided PCB
- Through-hole components for easy assembly maximum of 4 0 ohm resistors.
- Silk screen labeling for component placement
- Mounting holes for enclosure


**Deliverables:**
- Schematic diagram
- PCB layout design (Gerber files)
- Bill of Materials (BOM)
- Assembled and tested PCB prototype


**Timeline:**
- Initial design review: February 15, 2025
- Final design approval: February 28, 2025
- PCB fabrication and assembly: March 15, 2025
- Testing and validation: March 31, 2025


**Additional Notes:**
Please ensure that the design adheres to industry standards and best practices for PCB design and fabrication. We expect regular updates on the progress of the project and are available for any questions or clarifications.


**Approval:**
John Doe
HomeTech Innovations