ESP8266 WiFi Repeater With Mesh In Just 140 Rupees Full DIY Project

This DIY project creates a functional WiFi repeater and mesh network node by configuring an ESP8266 or ESP32 microcontroller with specialized firmware. At the core of the system is the microcontroller chip, such as the ESP8266-12F or ESP32, which features integrated Wi-Fi capabilities allowing it to act as both a client and an access point simultaneously. To prepare the hardware, an external FTDI programmer is connected to the board to flash the custom ESP WiFi repeater binary (.bin files) onto the microcontroller's flash memory using the ESP download tool. Once programmed, the module requires a stable power source to operate continuously. This is achieved by utilizing a phone charger adapter combined with a dedicated 3.3V voltage regulator to step down and deliver clean, regulated power to the board, preventing any overvoltage conditions that could permanently damage the sensitive silicon. Housed within a custom 3D-printed enclosure for neat packaging and safety, the assembled device connects to an existing wireless router to receive data packets and rebroadcasts them to surrounding areas. By leveraging mesh networking protocols included in the firmware, multiple nodes can interconnect to extend wireless range and improve coverage stability across larger physical spaces without relying on expensive commercial hardware.