Original Gravity: Digital Capacitive Touch Sensor For Arduino – PartsCountry

Description

This is a small (but huge on features) development board centred around the ESP32-S3 microcontroller. It has a dual-core Xtensa 32-bit LX7 processor operating at up to 240 MHz, with 512KB SRAM, 384KB ROM, 16MB Flash and 8MB PSRAM.

It has a colourful 1.8″ AMOLED capacitive touch display with 16.7 million colours and a 368 x 448 pixels resolution, wrapped in a small case.

The board supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) via an onboard antenna. A USB-C port is available for power supply, programming, and debugging. It also features offline Speech recognition and AI Speech Interaction.

Additionally, there is a 6-axis IMU sensor (3-axis accelerometer and 3-axis gyroscope), an RTC, SD card slot, a low-power audio codec, a built-in microphone, and a speaker. The board also has a 3.7V MX1.25 lithium battery header for mobile power.!

Two variants are available – the board only, or the board with a 3.7V lithium battery. Please select an option before adding it to your cart!

Please note: this board uses a tiny MX1.25 connector for LiPo power. Most LiPo batteries on the market (including ours) use a larger JST fitting. We do not yet stock batteries with an MX1.25 connector, however, you can customise your battery with one of our 1.25mm pitch cables to make a compatible battery yourself (assuming you have the ability, knowledge and tools to do this safely). If you want to source your own battery to fit inside the case, a battery size of 3.85 x 24 x 28 mm is recommended.

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Lithium Battery Shipping: Due to courier restrictions, the battery version of this product can only be shipped within some countries. With this item in your cart your shipping options will be limited and may cost more than our usual rates. Why?

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Features

• ESP32-S3R8 Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
• 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna
• 512KB of SRAM and 384KB ROM, with onboard 8MB PSRAM and an external 16MB Flash memory
• USB Type-C connector, improving device compatibility, easier to use
• 1.8″ AMOLED display for clear colour picture display, 368 ?? 448 resolution, 16.7M colour
• SH8601 display driver and FT3168 capacitive touch chip, using QSPI and I2C communication respectively, effectively saving the IO resources
• QMI8658 6-axis IMU (3-axis accelerometer and 3-axis gyroscope) for detecting motion gestures, counting steps, etc.
• PCF85063 RTC chip, powered by main Lithium battery through AXP2101 chip, with reserved RTC battery pads for connecting a backup battery, ensuring RTC function during the replacement of the main battery
• PWR and BOOT programmable buttons for easy custom function development
• 3.7V MX1.25 Lithium battery recharge/discharge header, optional for 3.7V Lithium battery
• Reserved pads of 7x GPIO, 1x I2C, 1x UART, and 1x USB interface, for connecting peripherals and debugging
• SD card slot for extended storage and fast data transfer, suitable for applications such as data recording and media playback, simplifying circuit design
• AXP2101 IC for efficient power management, supports multiple voltage outputs, battery charging, battery management, battery life optimization, etc.
• AMOLED screen, featuring advantages of high contrast, wide viewing angle, rich colours, fast response, thinner design, low power consumption, etc.

What’s on Board

1. ESP32-S3R8
   The SoC with WiFi and Bluetooth, up to 240MHz operating frequency, with onboard 8MB PSRAM
2. QMI8658
   6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer
3. PCF85063
   RTC chip
4. AXP2101
   Highly integrated power management IC
5. ES8311
   Low-power mono audio codec
6. Speaker
7. Backup battery pads
   For connecting the backup battery, RTC function during the replacement of the main battery
8. MX1.25 Lithium battery header
   MX1.25 2P connector, for 3.7V Lithium battery (optional), supports charging and discharging. (To fit inside the case, a battery size of 3.85 x 24 x 28 mm is recommended)
9. 16MB NOR-Flash
   For storing data
10. Microphone
11. Onboard antenna
    Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE)
12. Reserved GPIO pads (pitch 1mm)
    Using available IO function pins for easy expansion
13. BOOT button
    For device startup and function debugging
14. USB Type-C port
    ESP32-S3 USB interface, for programming and log printing
15. PWM button
    For system power supply ON/OFF, supports custom functions

Specifications

Display Panel	AMOLED
Resolution	368 x 448 pixels
Brightness	350 cd/?O
Communication Connection	QSPI
Touch	Supported
Display Size	1.8″
Display Colours	16.7M
Contrast Ratio	100000:1
Driver IC	SH8601
Touch IC	FT3168

Resources

• Product Wiki
• Schematic

Pinout

Package Contents

Board Only

• 1x ESP32-S3 1.8″ AMOLED Touch Display Development Board

Board + 3.7V Lithium Battery

• 1x ESP32-S3 1.8″ AMOLED Touch Display Development Board
• 1x 3.7V MX1.25 Lithium battery

USB-C cable not included