Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•ESP-32S supports adapter board, spacing 2.54mm, lead RESET and IO 0 port, can be inserted into breadboard, use lead, etc. to facilitate development and debugging.
•ESP32-WROOM-32D is powerful, generic Wi-Fi+BT+BLE MCU modules.
•ESP32-WROOM-32D that target a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding.
•The core of ESP32-WROOM-32D is the ESP32 chip, which is scalable and adaptive. The two CPU cores can be individually controlled or powered on. The adjustment range of the clock frequency is from 80 MHz to 240 MHz. The user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status changes of the peripherals or whether certain analog quantities exceed the threshold.
From USA
