Back to Projects
LoRa + ESP-NOW IoT Master-Slave Network
Role: IoT Network Engineer @ Evotech
Duration: Aug 2025 - Dec 2025
Overview
Architected a wireless network spanning 200m using LoRa and ESP-NOW, integrating custom PCB design and 3D printed enclosures.
Technical Details
- Architected a LoRa + ESP-NOW master-slave wireless network at 200m across 2 nodes (LilyGoT3 + MAPPI32), sustaining 4-hour continuous operation per charge cycle and delivering a 90% packet success rate.
- Designed custom PCB layouts via EasyEDA and fabricated enclosures in-house using 3D printing (Bambu Studio) and CNC, eliminating external fabrication dependencies and reducing prototyping costs.
Image Gallery




Core Technologies
ES
ESP-NOWKey Results
- 90% Packet Success Rate
- 200m Range
- In-houseFabrication