Network Protocol & Mesh
ESP-NOW & Mesh
Connectionless, ultra-fast wireless protocol developed by Espressif for short-packet peer-to-peer communication.
- Language
- C / C++
- ESP-NOW Protocol & Mesh-Lite
- Category
- Network Protocol & Mesh
- Main purpose
- Ultra-low-latency, low-overhead communication between ESP devices without a Wi-Fi router
Key features
- Fast peer-to-peer communication without Wi-Fi association
- Sub-millisecond packet latency
- Low energy consumption, ideal for battery sensors
- Payload up to 250 bytes with optional AES-128 encryption
- Supports one-to-many and many-to-one topologies
When to use
- Remote controls and wireless buttons
- Battery-powered sensor nodes
- Low-latency smart home triggers
- Industrial point-to-point telemetry
Code example
Starter snippet in C / C++. Adjust pins and configuration for your board.
ESP-NOW & MeshC / C++
1