M5Stack Stopwatch Dev Kit (ESP32-S3)

The M5Stack StopWatch combines a round AMOLED touchscreen, wireless connectivity, motion sensing, audio features, and battery power in a compact handheld device, making it ideal for portable controls, wearable interfaces, and interactive IoT projects. The M5Stack StopWatch is a round AMOLED touch development board designed for portable and interactive scenarios. It features an ESP32-S3R8 main controller with 16MB Flash and 8MB PSRAM, and supports 2.4GHz Wi-Fi wireless communication. The device integrates a 1.75" AMOLED round touch display, programmable buttons, and vibration feedback to provide an intuitive human-machine interaction experience. It also provides audio input/output, IMU attitude sensing, RTC timekeeping, and multiple expansion interfaces. Together with the M5PM1 multi-level power management system and a 450mAh battery, it can meet diverse development needs such as portable smart control, wearable human-machine interaction, and lightweight IoT terminals. Lithium Battery Shipping: Due to courier restrictions, this product can only be shipped within the United Kingdom. With this item in your cart, your shipping options will be limited and may cost more than our usual rates. Why?Features

* ESP32-S3R8 core controller:

* 16MB Flash + 8MB PSRAM * 2.4GHz Wi-Fi

* Interactive experience:

* 1.75" AMOLED round touch display * 2 x programmable buttons, 1 x power button * Built-in vibration motor * 6-axis IMU BMI270

* Audio system:

* ES8311 Audio Codec * MEMS MIC * AW8737A amplifier

* RTC clock chip RX8130CE * Expansion capability:

* HY2.0-4P expansion interface * Rear expansion bus (2.54-7P, 2.54-6P) * Lanyard hole design * Rear magnetic attachment design

* Power system:

* M5PM1 multi-level power management system * Built-in 450mAh battery * Balances battery life and low-power operation

Specifications SoC ESP32-S3R8 dual-core Xtensa LX7, up to 240MHz Flash 16MB PSRAM 8MB Wireless 2.4GHz Wi-Fi Display 1.75" AMOLED round touch display, 466x466 resolution, CO5300 driver chip, QSPI interface Touch CST820B driver chip Buttons 2 x programmable buttons + 1 x power button Vibration Feedback Built-in vibration motor Audio Codec ES8311 Microphone MEMS MIC Audio Amplifier AW8737A IMU BMI270 RTC RX8130CE Expansion Interface HY2.0-4P Rear Expansion Bus 2.54-7P, 2.54-6P Body Structure Lanyard hole Power Management M5PM1 multi-level power management Battery Capacity 450mAh Input Power USB Type-C DC 5V Product Size 52.0 x 52.0 x 15.5mm Product Weight 39.0g Resources

* Documents Package Contents

* 1x M5Stack Stopwatch Dev Kit (ESP32-S3)