StickC-Plus2

SKU:K016-P2

Description

StickC-Plus2 is the iterative version of StickC-Plus. It is powered by the ESP32-PICO-V3-02 chip, providing Wi-Fi connectivity. Within its compact body, it integrates a rich variety of hardware resources, including IR emitter, RTC, microphone, LED, IMU, buttons, buzzer, and more. It features a 1.14-inch TFT display driven by the ST7789V2 with a resolution of 135 × 240. The battery capacity has been increased to 200mAh, and the interface is compatible with both HAT and Unit series modules.

This sleek and compact development tool can ignite unlimited creativity. StickC-Plus2 helps you quickly build IoT product prototypes and greatly simplifies the entire development process. Even beginners who are new to programming can create interesting applications and apply them in real life.

Tutorial

UIFlow

This tutorial will introduce how to control the StickC-Plus2 device through the UIFlow graphical programming platform.

UiFlow2

This tutorial will introduce how to control the StickC-Plus2 device through the UiFlow2 graphical programming platform.

Arduino IDE

This tutorial will introduce how to program and control the StickC-Plus2 device using the Arduino IDE.

Note

Port Not Recognized

When using a C-to-C cable, if the port cannot be recognized, please perform the following power-on procedure: disconnect StickC-Plus2, power it off (long-press the power button until the green LED lights up), then reconnect the USB cable to power on.

Features

Developed based on ESP32-PICO-V3-02, supports Wi-Fi
Built-in 3-axis accelerometer and 3-axis gyroscope
Integrated infrared emitter
Built-in RTC
Integrated microphone
User button, LCD (1.14 inch), power/reset button
200mAh lithium battery
Expansion interface
Integrated passive buzzer
Wearable & mountable
Development Platform
- UiFlow1
- UiFlow2
- Arduino IDE
- ESP-IDF
- PlatformIO

Includes

1 × StickC-Plus2

Applications

Wearable devices
IoT controller
STEM education
DIY projects
Smart-home devices

Specifications

Specification	Parameter
SoC	ESP32-PICO-V3-02@Dual-Core Processor, up to 240MHz
Flash	8MB
PSRAM	2MB Quad
Wi-Fi	2.4 GHz Wi-Fi
Input Voltage	5V@500mA
Interface	USB Type-C x 1, HY2.0-4P (I2C+I/O+UART) x 1
LCD Screen	1.14-inch, 135 x 240 Colorful TFT LCD, ST7789v2
Microphone	SPM1423
Button	Custom Button x 3
LED	Green LED x 1 (Non-programmable) (Sleep State Indicator) Red LED x 1 (Shared control pin G19 with IR emitter tube)
RTC	BM8563
Buzzer	Onboard Buzzer
IMU	MPU6886
Antenna	2.4 GHz 3D Antenna
External Pins	G0, G25/G26, G36, G32, G33
Battery	200mAh@3.7V, inside
Operating Temperature	0 ~ 40°C
Shell Material	Plastic (PC)
Product Size	48.0 x 24.0 x 13.5mm
Product Weight	16.7g
Package Size	110.0 x 65.0 x 15.0mm
Gross Weight	26.3g

Operation Instructions

Power On/Off

Power On

Press and hold BUTTON C for more than 2 seconds, or wake the device via an IRQ signal triggered by the RTC timer. After the wake-up signal is triggered, set the HOLD (G4) pin to high (1) in the program initialization to maintain power; otherwise, the device will return to the power-off state.

Power Off

When no external USB power is connected, press and hold BUTTON C for more than 6 seconds, or set HOLD (GPIO4) to 0 during program execution to cut off power. When USB is connected, holding BUTTON C for more than 6 seconds turns off the display and enters sleep mode, but does not cut power.

IMU Triaxial Direction Schematic Diagram

Schematics

StickC-Plus2 Schematics PDF

1/3

PinMap

Red LED & IR Emitter | Button A | Button B | Buzzer

ESP32-PICO-V3-02	G19	G37	G39	G35	G2
IR Emitter & Red LED	IR emitter & Red LED pin
Button A		Button A
Button B			Button B
Button C				Button C
Passive Buzzer					Buzzer

Color TFT Display

Driver IC: ST7789V2
Resolution: 135 × 240

ESP32-PICO-V3-02	G15	G13	G14	G12	G5	G27
TFT Display	TFT_MOSI	TFT_CLK	TFT_DC	TFT_RST	TFT_CS	TFT_BL

Microphone MIC (SPM1423)

ESP32-PICO-V3-02	G0	G34
MIC SPM1423	CLK	DATA

6-Axis IMU (MPU6886) & RTC BM8563

ESP32-PICO-V3-02	G22	G21	G19
IMU MPU6886	SCL	SDA
BM8563	SCL	SDA
IR Emitter			TX
Red LED			TX

HY2.0-4P

HY2.0-4P	Black	Red	Yellow	White
PORT.CUSTOM	GND	5V	G32	G33

Model Size

Datasheets

Softwares

Arduino

UiFlow1

StickC-Plus2 UiFlow1 Quick Start

UiFlow2

StickC-Plus2 UiFlow2 Quick Start

PlatformIO

[env:m5stack-stickc-plus2]
platform = espressif32@6.7.0
board = m5stick-c
framework = arduino
upload_speed = 1500000
monitor_speed = 115200
build_flags =
    -DBOARD_HAS_PSRAM
    -mfix-esp32-psram-cache-issue
    -DCORE_DEBUG_LEVEL=5
lib_deps =
    M5Unified=https://github.com/m5stack/M5Unified

USB Driver

Click the links below to download the driver that matches your operating system. The package contains CP34X drivers (for CH9102). After extracting the archive, run the installer that matches your OS bit-depth.
If you encounter issues such as timeout or “Failed to write to target RAM” during downloading, please try reinstalling the driver.

Driver Name	Supported Chip	Download
CH9102_VCP_SER_Windows	CH9102	Download
CH9102_VCP_SER_MacOS v1.7	CH9102	Download

Easyloader

EasyLoader is a lightweight program flasher that comes with a demonstration firmware. By following a few simple steps, you can flash it to the controller for quick functional verification.

Easyloader	Download	Note
FactoryTest for Windows	download	/

Other

StickC-Plus2 Restore Factory Firmware Guide

Video

Version Change

Release Date	Product Changes	Note
2023.12	Removed AXP192 power management chip; main controller changed from ESP32-PICO-D4 to ESP32-PICO-V3-02; power on/off method is different	Version changed to v2
2021.12	Added sleep and wake-up functions; version changed to v1.1	/
/	First release	/

Product Comparison

To compare information on the Stick series products, you can visit the Product Selection Table, check the target products, and get the comparison results. The selection table covers key information such as core parameters and functional features, and supports comparison of multiple products simultaneously.

Hardware Differences

Product Name	SoC	Power Management	Battery Capacity	Memory	USB-UART Chip	Color
StickC-Plus	ESP32-PICO-D4	AXP192	120 mAh	520 KB SRAM + 4 MB Flash	CH522	Red-orange
StickC-Plus2	ESP32-PICO-V3-02	/	200 mAh	2 MB PSRAM + 8 MB Flash	CH9102	Orange

Pin Differences

Product Name	IR	LED	TFT	BUTTON A	BUTTON B	BUTTON C (WAKE)	HOLD	Battery Voltage Detect
M5STICKC PLUS	G9	G10	MOSI (G15) CLK (G13) DC (G23) RST (G18) CS (G5)	G37	G39	Regular button	/	Via AXP192
M5STICKC PLUS2	G19	G19	MOSI (G15) CLK (G13) DC (G14) RST (G12) CS (G5)	G37	G39	G35	G4	G38

Power On/Off Differences

Product Name	Power On	Power Off
StickC-Plus	Press reset button (BUTTON C) for at least 2 s	Press reset button (BUTTON C) for at least 6 s
StickC-Plus2	Press “BUTTON C” for more than 2 s, or wake via RTC IRQ. After wake-up, set HOLD (G4)=1 in the program to keep power on, otherwise the device will shut down again.	Without USB power, press “BUTTON C” for more than 6 s, or set HOLD (GPIO4)=0 in the program to power off. With USB connected, pressing “BUTTON C” for more than 6 s will turn off the screen and enter sleep, but not a full power-off.

Because StickC-Plus2 removes the PMIC AXP192, the power-on/off method differs from previous versions. As mentioned at the beginning of this document, the operation is largely similar, but the supported libraries will differ. Wi-Fi and IR signal strength have both been improved compared to the previous model.

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