New Microcontroller Based IoT Module based on ESP32 with SPDT Relays and Protection Circuits

ESP Module - Microcontroller Based IoT Module

Edge Devices has come up with an all-in-one device namely ESP Module for harnessing the power of ESP32 for a wide range of applications and microcontroller-based projects. Espressif’s ESP32-DevKitC-D32 which lies at the heart of the ESP Module ensures to help makers by providing them lightweight architecture. The ESP Module is a microcontroller based IoT Module based off on an ESP32 platform. This allows users who are familiar with Arduino programming or prefer a more lightweight architecture to enjoy all of the benefits of our IoT Modules.


Opting for ESP Module’s circuitry allows for the control of four Panasonic SPDT relays via GPIO pins and a 5V circuitry protection allows ESP32 to be powered from the screw terminals. Moreover, two more screw terminals function as grounds for power and GPIO pins. Also, ten more GPIO pins are routed to the enclosure terminals for harnessing the power of ESP32 for various applications. Six of these GPIO pins can easily be configured as analog inputs and two can be configured as analog outputs, due to ESP32’s flexible circuitry.


Key Features and Specifications

  • 4x Panasonic SPDT relays controlled via GPIO pins
  • Screw terminals for relay outputs, 6 × analog inputs, and  2 × analog outputs, configurable as GPIOs if needed.
  • Based on ESP32-DevKitC-D32, with an ESP32 dual-core processor, 32Mbit, SPI flash
  • 5V input via terminal or Micro USB port; 5V circuitry protection
  • 5V input, 3.3V, and GND
  • DIN rail enclosure


Edge Devices has launched its new hardware on Kickstarter and has already surpassed its $2,000 funding target. Based on previous experience, the company anticipated starting shipment in June 2020.