FARMIZOX LoRa Irrigation PCB Design

**Project Title: Custom PCB Design and Development for FARMIZOX – LoRa-Based Smart Irrigation Automation System**

We are developing FARMIZOX, an agricultural automation product that allows farmers to control water pumps and irrigation valves remotely using long-range LoRa communication without Wi-Fi, GSM, or Internet connectivity.

We are looking for an experienced **Embedded Hardware Engineer / PCB Design Engineer** to design two professional, compact, reliable PCBs.

**1. Transmitter PCB – Handheld Remote**
- ESP32 DevKit / ESP32 module integration
- ILI9341 SPI TFT touchscreen interface
- XPT2046 touch controller
- Three physical push buttons
- E32-433T30D LoRa module interface
- Rechargeable battery and charging circuit
- Power management and voltage regulation
- USB charging and programming interface

**2. Receiver PCB – Field Control Unit**
- ESP32 integration
- E32-433T30D LoRa module interface
- Four-channel relay driver circuit
- Four control outputs for water pump and three irrigation valves
- Power supply and voltage regulation
- Electrical protection and isolation
- Connectors for field wiring

**Required Deliverables:**
1. Complete circuit schematics.
2. Professional PCB layout design.
3. Gerber and drill files.
4. Complete BOM with component part numbers.
5. Editable KiCad or Altium project files.
6. 3D PCB models.
7. PCB manufacturing and assembly support.
8. Prototype testing and debugging assistance.

**Additional Requirements:**
- Compact and professional PCB design.
- Suitable for agricultural field environments.
- Reliable LoRa communication.
- Proper power management and electrical protection.
- Easy maintenance and component replacement.
- Design ownership and source files must be transferred to FARMIZOX.

We already have a working prototype and existing GPIO pin configurations. We will share the circuit connections and technical requirements with the selected freelancer.

**Please include in your proposal:**
- Previous ESP32 and LoRa PCB design experience.
- Examples of similar PCB projects.
- Estimated project cost.
- Estimated completion time.
- Whether you can support PCB fabrication and assembly.

We are looking for a long-term technical partner for future product development.