Description
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.
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
Includes
- 1 x StopWatch
Applications
- Portable smart devices
- Electronic badges
- Lightweight IoT terminals
Specifications
| Specification | Parameter |
|---|---|
| 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 |
| Package Size | 70.0 x 70.0 x 23.6mm |
| Gross Weight | 49.5g |