esp32_mesh

mesh examples for parents and leaf with ESP32 and ESP32-S2 using the esp_idf

features

• wrap static code into a c++ app library
  • quicker portability by calling one function instead of copy pasting hundreds of lines each time
  • template code for wifi and mesh is quite stable and does not require changes on different samples
  • arduino like, makes porting later easier
• switch from compile time menuconfig to runtime json config
  • allows a structured config in json
  • update of the file anytime even remote with fs management
  • easier to interface with webapps as tool for config
• Use SmartConfig for wifi provisioning
  • possible to provide a ready to flash app without config dependencies for wifi password
  • SmartConfig is a standard provisioning method

projects

• parent : idf project for mesh nodes with permanent power supply
  • includes web server fo mesh view and configuration
• leaf : idf project for low power sleepy devices
  • includes sensors libraries

Mesh

• Tree topology up to 25 layers
• Chain topology up to 1000 layers

config

• mesh.topology : "tree", "chain"
• mesh.leaf.duty_type : "request", "demand"
  • mesh.leaf.demand_cycle only applicable with "demand"
• mesh.parent.network.rule: "entire", "uplink"

Usage

for first time init see hello example readme

in terminal

> . .profile
> get_idf-4.1
> idf --version
> cd hello-esp32s2
> idf set-target esp32s2
> idf menuconfig
> idf build
> flash && monitor

References

• docs.espressif esp32 api-guide mesh