M5Stack FIRE User manual

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FIRE
Description
M5Stack FIRE Kit is a upgrade from the Gray kits,except the 9-Axis IMU sensor. It provides more
hardware resources : 16M Flash + 4M PSRAM , enhanced Base (M5GO Base and M5GO CHG Base), larger
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battery, etc.
With a IMU posture sensor, you can include posture detection in your work : accelerated speed,
angulation, and trajectory deection. You can make relative products like sports data collector, 3D remote
gesture controller and more.
FIRE is M5 Core device. Its modular, stackable, scalable, and portable device is powered with an ESP-32
core, which makes it open source, low cost, full-function, and easy for developers to handle new product
development on all stages include circuit design, PCB design, software, mold design and production.

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processors, chips ,scokets, 2.4G antenna etc, such as ESP32, power
BUS socket , LED bar and two more GROVE Port. The bottom part is a charge table,can be connect to the
M5GO base via POGO pins.
Ever wanted to explore the fastest way of IoT prototyping, M5Stack development board is the perfect
solution. Not like others, M5Stack development board is highly productlized, covered with industrial grade
case, and ESP32-based development board. ESP32 is a hybid Wi-Fi & Bluetooth chip contains a dual-core
and 4MB of SPI Flash . Together with 30+ M5Stack stackable modules, 40+ extendable units, and different
levels of program language, you can create and verify your IoT product in a very short time. Supported
development platforms and program languages: Arduino, Blockly language with UIFlow, Micropython.
Regardless of what level program skill you have, M5Stack would guide you in every step of the way to
realize your idea as well as to the final productilization.
comparison, ESP32 is full-feathered with more GPIO, plenty of analog inputs and two analog outputs,
multiple extra perpherials( like a spare UART ). Official development platform ESP-IDF have planted with
FreeRTOS. With dual-core and real time OS you can get more organized code and much high speed
processor.
Notice1:
The newly-produced M5Core replaces the screen with better display performance and higher viewing
angle, so it has some compatibility problems with the old Arduino library. When using the old library for
screen driving, it will produce reverse color display. You can open the Arduino. The library management
option will upgrade your M5Stack library to the latest version (after 0.2.8) to solve this problem.
Notice2:
The GPIO 16 / 17 in Fire is connected to the PSRAM by default, so when you connect or stack other
function modules, you need to avoid conflicts with these two pins to prevent the device from working
properly and causing instability.
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ION
If you ever played with ESP8266, you would realize that ESP32 is a perfect upgrade from ESP8266. In

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ESP32 Features
240 MHz dual core Tensilica LX6 microcontroller with 600 DMIPS
Integrated 520 KB SRAM
Integrated 802.11b/g/n HT40 Wi-Fi transceiver, baseband, stack and LWIP
Integrated dual mode Bluetooth (classic and BLE)
Hall sensor
10x capactive touch interface
32 kHz crystal oscillator
PWM/timer input/output available on every GPIO pin
SDIO master/salve 50MHz
SD-card interface support
M5GO Bottom
Click to view details parameters
Peripherals Pin Map
LCD & TF card
LCD ： 320x240 TF card Maximum size 16GB
ESP32 Chip GPIO23 GPIO19 GPIO18 GPIO14 GPIO27 GPIO33 GPIO32 GPIO4
ILI9342C MOSI/MISO / CLK CS DC RST BL
TF Card MOSI MISO CLK CS
Button & Speaker
ESP32 Chip GPIO39 GPIO38 GPIO37 GPIO25
Button Pin BUTTON A BUTTON B BUTTON C
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5V DC power supply
USB Type-C
ESP32-based
Case Material: PC + ABS
16 MB Flash
4 MB PSRAM
BMM150 + MPU6886
Speaker, 3 Buttons, LCD(320*240), 1 Reset
2.4G Antenna: Proant 440
TF card slot (16G Maximum size)
Battery Socket & 500 mAh Lipo Battery
Extendable Pins & Holes
Grove Port
M-Bus Socket & Pins
Development Platform UIFlow, MicroPython, Arduino
Product Size：54.2mm x 54.2mm x 30.5mm
Product weight：62.3g

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Speaker
GROVE Port A & IP5306
We've use the customized I2C version of IP5306, on power management.
Its I2C address is 0x75.
ESP32 Chip GPIO22 GPIO21 5V GND
GROVE A SCL SDA 5V GND
IP5306 SCL SDA 5V GND
IP5306 charging/discharging ， Voltage parameter
charging discharging
4.20 ~ 4.07V -> 100%
4.07 ~ 3.81V -> 75%
3.61 ~ 3.88V -> 50% 3.81 ~ 3.55V -> 50%
3.88 ~ 4.12V -> 75% 3.55 ~ 3.33V -> 25%
4.12 ~ / -> 100% 3.33 ~ 0.00V -> 0%
6-Axis MotionTracking Sensor MPU6886
MPU6886 I2C address 0x68
ESP32 Chip GPIO22 GPIO21 5V GND
MPU6886 SCL SDA 5V GND
3-Axis Geomagnetic Sensor BMM150
BMM150 I2C address 0x10
ESP32 Chip GPIO22 GPIO21 5V GND
BMM150 SCL SDA 5V GND
M5GO Base Port
GROVE Port B
ESP32 Chip GPIO36 GPIO26 5V GND
GROVE B GPIO36 GPIO26 5V GND
GROVE Port C
ESP32 Chip GPIO16 GPIO17 5V GND
GROVE C RXD TXD 5V GND
LED Bar & Micphone & Speaker
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0.00 ~ 3.40V -> 0%
3.40 ~ 3.61V -> 25%

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ESP32 Chip GPIO15
Hardwares SIG Pin MIC Pin Speaker Pin
PARAMETER
Resources Parameter
ESP32 240MHz dual core, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth
Flash Memory 16MB
Power Input 5V @ 500mA
Port TypeC x 1, GROVE(I2C+I/0+UART) x 1
IPS Screen 2 inch, 320x240 Colorful TFT LCD, ILI9342C
Speaker 1W-0928
MEMS BMM150 + MPU6886
Battery 500 mAh @ 3.7V
Operating Temperature 32°F to 104°F ( 0°C to 40°C )
Size 54 x 54 x 21 mm
Case Material Plastic ( PC )
Notice1 ： M5PORT EXPLAIN You can identify the port name and function by its color, red is
PortA(21/22) mainly used for I2C, black is PortB(26/36) which can be used for DA/AD, Singel-bus
communication, Blue is PortC(16/17) can be used for Uart. Correspondingly, most of the M5 Units have
the Port with matched color for specify which port it should go in on the M5Core. Those port
identification is a convenience for UIFlow (Blockly) Users. For advanced using ,you can do you own
customization, since most of the PIN on ESP32 are remapping-able. Unfortunatly, PortA(red) can not be
used as analog read in. It refers to GPIO 21 & 22 from ESP32, which doesn't have AD channel alternatives:
ADC1(8 channels atteched to GPIOs 32-39)
ADC2(10 channels atteched to GPIOs 0，2，4，12-15，25-27)
To use AD read function : 1, Use Dupont cable refers to the pins on the side which can be used as an AD
channel. 2, Get a M5GO bottom, which comes with a PortB. 3, Get a PbHUB and connect it with PortA,
then you can have 6 PortBs. For more information about Pin assignment and Pin Remapping, Please refer
to EPS32 Datasheet
Include
1x FIRE
1x M5GO CHG Base
2x LEGO block
5x LEGO connector
1x M3 hex wrench
1x Type-C USB(100cm)
1x User Manual
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Schematic - BASIC
Related Link
Datasheet
ESP32
MPU6886
BMM150
SH200Q
Register Manual
IP5306
Version Change
Release Date Product Change
2018.6 Initial public release
2019.7 MPU9250 changed to SH200Q+BMM150, TN screen changed to IPS screen
2019.8 SH200Q changed to MPU6886
2019.11 Battery capacity changed from 600mAh to 500mAh
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