Leveraging the ESP32-S3 chip, the Touchdot S3 is a versatile development board crafted for creative wearables, IoT implementations, and smart devices. Inspired by the Lilypad aesthetic but delivering modern functionality, it marries a compact form factor with robust connectivity and power management features for seamless prototyping.
UNIT Touchdot S3
| Resource | Link |
|---|---|
| Wiki-UNIT Electronics | Wiki-Uelectronics |
| Product Brief | Product brief |
| Schematic | Schematic |
| Documentation | Documentation |
| Datasheet ESP32-S3-MINI-1 | Datasheet |
- Energy Efficient: Optimized for low power consumption.
- 3.3 V Power Rail: Compatible with wearable sensors and peripherals like QWIIC modules.
- Wi-Fi and Bluetooth 5: Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth Low Energy subsystem
- CPU: Xtensa® dual-core 32-bit LX7 microprocessor
- Memory: 384 KB Rom, 512 KB SRAM, and 16 KB SRAM in RTC
- USB-C Charging & Communication: Ensures reliable power delivery and straightforward programming.
- Integrated LiPo Battery Management: Streamlines power safety and efficiency without extra circuitry.
- Sewable Pads: 16 sewable pads in total: 11 programmable multiplexed GPIOs, 1 for Neopixel output data, and 4 for power supply.
- Pin Headers: 18 pin headers complement the sewable pads; use these to access more GPIOs and functions such as boot or enable.
| Feature | Description |
|---|---|
| Wi-Fi & Bluetooth LE | Dual wireless connectivity for seamless IoT and mobile interactions. |
| Built-in LiPo Charging | Reliable battery charging integrated into the board design. |
| Power & Reset Controls | Direct access to board power management with dedicated buttons for power and reset. |
| Sewable Pads & Magnetic Connectors | Ideal for wearable projects and rapid prototyping with flexible module integration. |
| Multiple Solder Points for GND & 3.3 V | Facilitates easy wiring to external sensors or actuators without complex setup. |
| Standard QWIIC Connector | Supports quick connection of I²C peripherals such as sensors, displays, and expansion modules. |
| Power On Switch | Easily turn on the device with an SPST switch. |
| Built-In LED | LED connected to D13. |
| RGB LED | Neopixel 2020 LED, data input connected to D25 and data output to a sewable pad. |
| Micro SD Slot | Manage data on Micro SD cards with the SPI protocol. |
This project is licensed under the MIT License.