ESP-NOW Dual Sensor Link
Sensors · Board: ESP8266 · Day 76 of 100
Two ESP8266 nodes exchange DHT11 readings bidirectionally over ESP-NOW, each with its own display. True peer-to-peer sensing.
How it works
Two ESP8266 nodes take turns as sender and receiver, each broadcasting its own DHT11 readings while displaying the other's. Both boards end up showing both locations' climate — a genuinely bidirectional conversation between peers, no server involved.
What you'll learn
- Bidirectional ESP-NOW
- Peer data synchronization
- Mirrored sensing
- Server-free communication
Full project: code, wiring diagram & Wokwi simulation
The complete build guide lives in the original repo. Ours is a summary — the real thing is one click away.
Open full project on GitHub ↗Summary by SkillShop. Project by Kritish Mohapatra — code and diagrams belong to the original repo.
More Sensors builds
ESP32
DHT11 Web Server
The ESP32 serves a live web page showing temperature and humidity from a DHT11 sensor. Your first step into Wi-Fi, HTTP servers, and sensor dashboards…
Read case →
ESP8266
Mini Weather Station
An ESP8266 pairs a DHT11 with a 16x2 I2C LCD to show temperature and humidity at a glance. Compact build combining sensor reading with character displ…
Read case →
ESP32
MQ4 Gas Leak Detector
An MQ-4 sensor on the ESP32 watches for methane and sounds a buzzer when levels spike. Practical safety project with analog threshold alarms.
Read case →