DS3231 RTC Module Schematic and Circuit Connections. The circuit diagram to connect the RTC3231 to the ESP board is given below: The RTC DS3231 IC uses the I2C mode of communication. It has SCL, SDA, ...

In the ESP32 module the built-in DAC and ADC are used for audio in and output, which provide just about enough resolution for voice communication. ... The DIY Walkie-Talkie circuit diagram.

ESP32-MeshKit-Sense is a development board with an ESP32 module at its core. It features peripherals, such as a temperature and humidity sensor, an ambient light sensor, etc. ... Block Diagram and PCB ...

Setup: Initialize GPIO pin 15 on the ESP32 as an input using pinMode() in the setup() function.; Operation: In the loop() function: . Read the digital state of the Hall Effect sensor using digitalRead ...

ESP32 OLED Module Interfacing Connection Diagram. The following image shows how to connect the OLED module with ESP32 Devkit. Since we are using the OLED module with the I2C protocol, we only need 4 ...

LILYGO T-Vending is an ESP32-S3 WiFi and Bluetooth IoT board designed for vending machines with an RS485 terminal block, a microSD card slot, and support for an optional cellular mPCIe module. As I ...