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ESP32 Sensor Network

The ESP32 Sensor Network is a WiFi/BLE/Bluetooth based wireless sensor network that can connect with a variety of sensors.

This module is a comprehensive development platform for Espressif's ESP32. Like the 8266 and ESP32 Thing, the ESP32 Sensor Network is a WiFi-compatible microcontroller with support for both Bluetooth Classic (i.e. SPP) and Bluetooth low-energy (i.e. BLE, BT4.0, Bluetooth Smart), a Qwiic connector, and 21 I/O pins. Add to that a rich set of peripherals ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPIs, UARTs, I2S and I2C.

You can download the files from GitHub and feel free to replicate them for your projects!

Note that this board doesn't come with a USB to serial converter chip and auto-reset circuit. Instead, you will need to plug in a CP2104 Friend or FTDI cable. Then, before uploading code, put it into bootloader mode by holding down the Boot button and clicking the Reset button, then releasing the Boot button.


  • Xtensa® dual-core 32-bit LX6 microprocessor

  • Up to 240MHz clock frequency

  • 16MB of flash storage

  • 520kB internal SRAM

  • Integrated 802.11 BGN WiFi transceiver

  • Integrated dual-mode Bluetooth (classic and BLE)

This module uses is compatible with ESP32 WROOM 32E or ESP32 WROOM 32DA.

Note: This is a 2 layer board (35mm x 48mm) using ESP32 WROOM modules. There's another board designed for Micro Sensor Networks which is a 4 layer board using ESP32S.

Feel free to contact me if you have any queries.

Happy Making!

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