wireless design. As a low-cost Wi-Fi/Bluetooth combo radio, it has gained popularity not just among hobbyists but also among IoT developers. Its low energy consumption, multiple open-source development environments, and libraries makes it perfectly suited for developers of all sorts. However, ESP32 comes in so many different modules and development boards that it can be difficult to select the right one.
Figure 1. The ESP32- WROOM-32D module runs at speeds up to 240 MHz and contains 8 Mbytes of onboard SPI flash. Credit: Espressif Systems
How to select and use the right ESP32 Wi-Fi/ Bluetooth module
Written by: Jacob Beningo Contributing Author at DigiKey
As the industrial automation accelerates, engineers on the factory floor are working to connect systems to an IoT that has in many ways left older factory floors behind. However, for both new and legacy systems, wireless connectivity to the IoT using Wi- Fi or Bluetooth has been made relatively simple using ESP32 modules and kits. Created and developed by Espressif Systems, ESP32 – a series of low- cost, low-power system-on-a-chip microcontrollers with integrated Wi- Fi and dual-mode Bluetooth – is a
This article introduces ESP32 solutions and shows how
developers can identify the right module and development board to start connecting their application to the IoT.
The ESP32 module
The ESP32 module is an all-in-one, integrated and certified Wi-Fi/ Bluetooth solution that provides not just the wireless radio but also an on-board processor with interfaces to connect with various
breakthrough for automation engineers who don’t want to get caught up in the nuances of radio frequency (RF) and Figure 2. The ESP32-WROOM- 32U is pin compatible with the WROOM-32D but replaces the latter’s on- board trace antenna with an IPEX connector for an external antenna, allowing for optimized RF characteristics. Credit: Espressif Systems
we get technical
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