FireBeetle Covers-Gravity I/O Expansion Shield

Introduction
DFRobot FireBeetle series is the low-power consumption micro-controller intentionally designed for Internet of Things (IoT). The series micro-controllers aims at IoT node of low-power consumption, attending to build the IoT hardware platform quickly and conveniently. There are three types of FireBeetle, containing Boards (main control), Covers (expansion boards) and related Accessories.
FireBeetle Covers-Gravity I/O Expansion Shield is an adapter for Gravity sensors and modules. With this shield, you can achieve convenient connection between Gravity sensors and FireBeetles. Every sensor will have its independent power pins.
FireBeetle Gravity I/O Expansion Shield
Note: Please pay attention that the working voltage is 3.3V only. (Red pins)
Project 1. FireBeetle Board-ESP32 Tutorials: Reforming a Small electric Fan
The instrument not just can record steps (and calories) at real time, but show time. What is special is that the format of showing is pointer.
Hardware in need:
FireBeetle ESP32 IOT Microcontroller (Supports Wi-Fi & Bluetooth) ¡Á 1
FireBeetle Covers-Gravity I/O Expansion Shield¡Á 1
Gravity: I2C OLED-2864 Display ¡Á 1
BME temperature-humidity sensor ¡Á 1
EC11J rotary encoder ¡Á 1
9g micro servo (1.6kg) ¡Á 1
Dupont line ¡Á 10
Button
Crust By Overlord 3D printer ¡Á 1
Project 2. Application Tutorials of FireBeetle Board - ESP32 BLE: Smarten a Plugboard
What you have seen is a smart plugboard that converted by ESP32 master board and controlled by BLE of ESP32.
Hardware in need:
USB Power Supply Wall Adapter 5V@2.5A (EU Standard)
FireBeetle ESP32 IOT Microcontroller (Supports Wi-Fi & Bluetooth)
FireBeetle Covers-Gravity I/O Expansion Shield
FireBeetle Covers-Proto Board
Gravity: Digital 5A Relay Module
Beetle BLE
Button
8Crust printed by 3D printer
Features
DFRobot FireBeetle Compatible
Gravity interface, plug and play, easy to use
Cost-effective
Small size, convenient to install
Specification
Input voltage£º3.7V~5.5V (VCC)
Output voltage£º3.3V
Supports low-power consumption Mode: POWER_EN = LOW
Support maximum discharge current: 600mA(Output voltage: LDO-3.3V )
Interface: Gravity standard interface
Digital I/O Pins: 10
Analog Input Pins: 5
Supports I2C x1
Supports UART x1
Supports SPI x1
Dimension: 29.00¡Á58.00mm/1.14 x 2.28ches
Shipping List
FireBeetle Covers-Gravity I/O Expansion Shield x1
18 pin-2.54mm pin x2
18 pin-2.54mm long pin header x2