Current Product Don't Have Test Firmware
Note: pls, use PC chrome/edge browser, if can't connect, refresh the webpage.
1. Click connect button
2. After connected successfully, pick a firmware
3. Click the burn button
4. After burning successfully, Unplug the device and restart.
PbHub Expander unit is a single-bus board which is controlled using GROVE PortB connector (The black port on the M5Go Base). The expander unit contains 6 ports all in 1 unit. PortB can be used as GPIO and Analog in (the two data lines are connected to GPIO36 and GPIO26 on the ESP32 module).
Similar to the PaHub Unit, the PbHub provides solution for multiple devices control using a single port - PortB. With PbHub each of the IO can be configured as input and output, it has a built-in MEGA328 MCU with a simple driver firmware installed.
|Communication protocol||I2C: 0x61(can be modified by resistance A0, A1, A2)|
Notice: Please pay attention to the order of the channels while programing the PbHub
Note 1: The default range of the ADC input voltage of the built-in MCU is
0-5V, and the corresponding ADC resolution is
10bit (1024), so when using an analog signal input with an input range less than 5V, it will not reach the maximum The value is 1024.
Note 2: Not all Units with a black interface (PortB) support expansion through PbHUB. PbHUB can only be applied to basic single-bus communication, through the I2C protocol (built-in MEGA328) to achieve basic digital read and write, analog Read and write. But for units such as Weight (built-in HX711) that not only need to read analog, but also depend on the timing of the Unit, PbHUB cannot be expanded.
EasyLoader is a precise and fast program writer which has a built-in functionalities related to the 4-Relay unit. The Easyloader program can burn the firmware to the main controller board by simple easy to follow steps.
Mega328 ISP footprint definition
The Default I2C address of the unit is 0x61 (which can be changed by using solder resistors A0 ~ A2, the address range is 0x61 ~ 0x68).
For the complete Arduino code please click here
Extended IO interface
pos digitalRead Read pin digital value
pos digitalWrite value Write a digital value to the pin
analogRead Read analog value
Set pos RGB number to Set the number of specified pins RGB
Set pos num RGB pos color Set the color of the specified serial number RGB
Set pos num RGB begin count color Set the RGB color within the specified range
Set pos RGB brightness Set the specified pin RGB brightness
For the Complete UIFlow example code please click here
|state||IO0 Digital Write||IO1 Digital Write||IO0 Analog Write||IO1 Analog Write||IO0 Digital Read||IO1 Digital Read||IO0 Analog Read||reserve||Set RGB LED Num||Set oneLED Color*||Set moreLED Color*||Set Brightness|
|data length (Byte)||1||1||1||1||1||1||2||/||2||5||7||1|
Execute the following statement in Setup() of the Arduino program
When M5Core2 is stacked with other M5 modules, you need to remove the battery base of Core2, which does not support module stacking.
Reason and solution: The power supply current of the port is insufficient, which can cause the device to not enter the download mode normally. You can try to connect a capacitor (>0.1uF) between the RST pin and the GND pin, or when uploading the program, set the G0 Short-circuit to GND, so that G0 can be set to a low level state normally
Add the header file #include <driver/adc.h> and the function adc_power_acquire(); in the Arduino program
The battery life of the controller is affected by various factors such as battery capacity, operating status, and load, so there is no fixed value. Reducing the load and adopting a sleep strategy can effectively increase the battery life.
Support multiple stacks, the total capacity of the batteries in parallel increases, and the voltage remains unchanged. However, since the discharge of each battery is not balanced during use, there is a voltage difference between the batteries, which may cause the battery to charge backwards. .(will lose part of the battery capacity)
ESP32 module currently does not support WiFi in 5G band, only 2.4G.
Confirm whether the TX/RX pin on the TTL side of the pin is correct, try to add two 120Ω terminal resistors at the beginning and end of the device line to reduce signal reflection interference
Click the link below to view the product comparison table
Rotate the lens to adjust the focal length within a certain range
FACE II BOTTOM NOT CORE2 COMPATIBLE
Use esptool to read the flash content of esp32 and export the bin file. Refer to the detailed operation
Restart the Arduino IDE, the computer uses the mobile AP mobile network to download.
Refer to the Github link below, use arduino-esp32fs-plugin for file upload
Check if the COM of the corresponding device is selected and if the M5Burner is the latest version
UIFlow users can switch the Label font to Unicode, Arduino users can use the Chinese font library provided in the M5GFX driver library
Confirm whether the SD card format is FAT32, and no partitions exist.
You can refer to the following link for other ESP32 users to share the case program
STAMP C3U enters program download mode operation: 1. Long press the center button (G9) of STAMP C3U when the power is off. 2. Connect to the computer, after the port is successfully identified, program burning.
By default, USB CDC is not enabled, the serial port output started by C3U will be output through the default pins (G20, G21) of UART0. If you want to output through USB, please use the IDE to output Its USB CDC option is enabled. (Arduino users can enable it through Tools->USB CDC on Boot-Enabled. For IDF users, please refer to the ESP IDF official documentation.)
Refer to the UIFlow documentation of the corresponding device to check whether the device has entered the USB programming mode.
Make sure that the NBIoT used is not locked. Frequent device replacement or after activating the IoT card, using traffic in different places may cause the card to be locked. If the above situation occurs, please contact the IoT card supplier. If you are using the IoT card matching M5, please contact M5 after-sales through e-commerce or email. (provide the ICCID of the IoT card)
Describe the problems encountered in detail. Screenshots of the programs involved or files can be added as attachments and sent to M5Stack's official after-sales email