Introduction
ESP32-S3-Zero (without pin header) and ESP32-S3-Zero-M (with pin header) are tiny in size with castellated holes, making them easy to integrate into other host boards. ESP32-S3-Zero comes with an onboard Type-C USB connector, which exposes most of the unused pins in a small form factor.
In addition, there is a hardware encryption accelerator, RNG, HMAC, and Digital Signature modules to meet the safety requirements of IoT and provide peripheral interfaces.
Moreover, its low-power working mode supports most application scenarios such as IoT, mobile devices, wearable electronic devices, and smart homes.

Board specifications
Castellated module and onboard ceramic antenna, allows soldering direct to carrier boards
Supports flexible clock, module power supply independent setting, and other controls to realize low power consumption in different scenarios
Integrated with USB serial port full-speed controller, 34 x GPIO pins allows flexibly configuring pin functions
4 x SPI, 2 x I2C, 3 x UART, 2 x I2S, 2 x ADC, etc.

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Hardware Connection
Press the BOOT (GPIO0) key before connecting the Type-C cable each time download the firmware.
Input 3.7V~6V for the castellated hole with 5V silkscreen when connecting the external power.

Package Content
ESP32-S3-Zero x1