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.
StepMotor Driver is adapted to M5 core series, the HR8825
chip solution provides a 3-way bipolar stepper motor control interface. You can implement independent control or multi-axis motor linkage after this module is stacked with M5 core series of the internal ESP32 generates signals directly to the driver chip.
This module integrated TCA9554 IO expansion chip provides 4 sets of input signal terminals
+ 3 sets of stepper motor subdivision control
+ 1 set of drive chip enable control
, through the I2C interface control, can monitor and control the 8 expansion IO state, as well as for external limit switch, dynamic subdivision adjustment, motor braking. Integrated PWR485
communication interface (RS485
+ 9-24V power input
) and DC-JACK, which can be used for communication and more flexible power supply. Download the UIFLOW and you're ready to go!
With ESP32-GRBL firmware, web control. It can be easy to configure signal output and very useful when you need to position something very accurately. such as:printers, robotic arms, etc.
Note:
It is forbidden to plug or unplug the motor when it is powered on. All operations should be performed after the device is powered off to avoid damage to the module.
1/32
STEP subdivisionFeatures | GRBL 13.2 MODULE | STEPMOTOR DRIVER |
---|---|---|
Control method | I2C communication | Pulse signal |
Firmware program | Onboard STM32, built-in GRBL firmware | No firmware, can be driven by ESP32 direct signal |
Number of modules that can be stacked | 2 | 1 |
Driver IC | DRV8825 | HR8825 |
Subdivision adjustment | DIP switch | TCA9554 chip control |
Interface | 3 groups of limit switch interfaces | 4 groups of custom signal input interfaces + RS485 communication interface |
Specifications | parameters |
---|---|
Stepper motor driver chip | HR8825 |
IO Expansion Chip | TCA9554 |
Support for segmentation | FULL、1/2、1/4、1/8、1/16、1/32 |
Maximum drive current per channel | 1.5A |
Input Signal Terminal Specifications | 2.54-2P |
Motor terminal specifications | 2.54-4P |
RS485 terminal specifications | 3.96-4P |
Net weight | 40g |
Gross weight | 60g |
Product Dimensions | 54.2 * 54.2 * 13.2mm |
Packaging size | 95 * 65 * 25mm |
M2 | M1 | M0 | Resolution |
---|---|---|---|
0 | 0 | 0 | FULL |
0 | 0 | 1 | 1/2 |
0 | 1 | 0 | 1/4 |
0 | 1 | 1 | 1/8 |
1 | 0 | 0 | 1/16 |
1 | 0 | 1 | 1/32 |
1 | 1 | 0 | 1/32 |
1 | 1 | 1 | 1/32 |
I2C Addr: 0x27
Use register 0x00
when reading status
Use register 0x01
when writing status
Configure the corresponding bit in register 0x02
to 1 to achieve polarity inversion, and configure it to 0 to not reverse Turn to
The corresponding bit in the register 0x03
is configured as 1 for input mode, and 0 for output mode.
The pin relationship corresponding to the above register bytes is shown in the table below.
Bit | Desc | R/W |
---|---|---|
7 | P7 Subdivision adjustment bit M0 | R/W |
6 | P6 Subdivision adjustment bit M1 | R/W |
5 | P5 Subdivision adjustment bit M2 | R/W |
4 | P4 DRV EN driver chip enable | R/W |
3 | P3 input signal 3 | R/W |
2 | P2 input signal 2 | R/W |
1 | P1 input signal 1 | R/W |
0 | P0 input signal 0 | R/W |
The stepping motor has different specifications, and the required drive current may also be different. The current output can be adjusted through the metal knob on the module during use. In order to prevent the motor from overheating or damage, adjust the knob slowly during adjustment, observe the motor status or connect an ammeter to determine the appropriate drive current.
CORE | G16 | G12 | G15 | G17 | G13 | G0 |
---|---|---|---|---|---|---|
HR8825 X | STP X | / | / | DIR X | / | / |
HR8825 Y | / | STP Y | / | / | DIR Y | / |
HR8825 Z | / | / | STP Z | / | / | DIR Z |
CORE | G34 | G26 | GND |
---|---|---|---|
RS485 | TX | RX | GND |
CORE | G21 | G22 | 5V | GND |
---|---|---|---|---|
TCA9554 | SDA | SCL | VIN | GND |
Note:
ESP32-GRBL & WEB-UI
The program requires the use of ESP32 board management 1.0.3
version, which is higher It may not compile normally. Please refer to
ESP32-GRBL-WIKI
for instructions on use and WEB-UI control
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
M5Stack related resource links: Official Github