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.
COM.CAT1 is an LTE CAT1 data communication module with a built-in SIM-A7680C module for LTE CAT1 in China, it supports LTE-TDD/LTE-FDD wireless communication. The module integrates SMA external antenna interface to stabilize the communication quality and signal of the device. Integrated DC 5/12V power input interface, provide more power supply options. It can be stacked with the same series of M5 stacking modules to extend the functions. In comparison with NBIoT, CAT1 has a stronger data transmission speed. The maximum downlink rate is up to 10Mbps (uplink) / 5Mbps (downlink). This module is ideal for applications that require data transmission rates (remote control/data transit, etc.).
|Up and Down Speed||Maximum Downlink Rate 10Mbps / Maximum Uplink Rate 5Mbps|
|Support CAT1 band||LTE-TDD: B34/B38/B39/B40/B41
|Network Protocol||TCP/IP/IPV4/IPV6/MultiPDP/FTP/HTTP/DNS/RNDIS/ECM/PPP/TLS/LBS/TTS/MQTT/WiFi Scan|
|Communication||UART 115200bps 8N1|
|SIM card slot specifications||Nano|
|Input Power||MBUS(5V) / DC INPUT (5V/12V)|
|Product size||54.2 * 54.2 * 13.2mm|
|Packing size||165 * 60 * 36mm|
Adjust the UART DIP switch on the COM.CAT1 module to switch the IO pins used by
TX/RX. Adjust the power input DIP switch to adjust the
5V/12V power input.
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
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.
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