EasyLoader (beta)

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.


Module LTE



This is a wireless communication module with integrated M8321 module that released by China Mobile, provided TD-LTE/FDD-LTE/WCDMA/TD- SCDMA/GSM/GPRS/EDGE Frequency Band and LCC+LGA package type.

The LTE M8321 module has plentiful of integrated Internet protocols, field standard interface and functions.

Supported by the most popular operation systems such as WindowsXP, Windows7, Windows8, Windows10, Linux and Android USB driver.

In the LTE-4G module scheme, we added more hardware resources, 1 reserved speaker solder panel, 3 LEDs, exported USB interface, double antenna is allowed.

M8321 is 4V power input, so in the hardware of LTE-4G module, we added a Bidirectional Voltage-Level Translator (TXS0104E), to switch the power supply to 4V.

This product is EOL now, we've released the updated version COM.LTE Module(SIM7600G) which is fully compatible with this product.

Product Features

Product Feature:

  • Double Antenna
  • Resolved Speaker on board(I2S)
  • Power Input: 5V
  • Serial Communication: UART2 16/17
  • M8321
    • Tem:-40°C ~ + 85°C
    • Frequency Band:
      • LTE-TDD:B38/B39/B40/B41
      • LTE-FDD:B1/B3/B8
      • TD-SCDMA:B34/B39
      • WCDMA:B1/B8
      • GSM(MHz):900/1800
    • Data Transmit:
      • LTE speed: (Mbps) LTE-FDD 50(UL)/150(DL) LTE-TDD 50(UL)/100(DL)
      • HSPA+ speed: (Mbps) 5.76(UL)/21.6(DL)
      • TD-SCDMA speed: (Mbps) 2.2(UL)/2.8(DL)
      • EDGE speed: (Kbps) 384(UL)/384(DL)
      • GPRS speed: (Kbps) 85.6(UL)/85.6(DL)
      • SMS supported PDU/TEXT mode
      • Network Protocol: IPV4/IPV6/TCP/PPP/UDP/FTP/HTTP/NTP
    • Consumption:
      • 17uA@Power off
      • 3mA@Sleep
      • 45mA@Idle


  • 1x Antenna
  • 1x LTE module


  • M2M industrial
  • Vehicle-mounted
  • Video
  • Security
  • CPE
  • Router
  • POC


Resources Parameter
Net weight 18g
Gross weight 29g
Product Size 54.2*54.2*12.8mm
Package Size 60*57*17mm

In telecommunication, Long-Term Evolution (LTE) is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies. It increases the capacity and speed using a different radio interface together with core network improvements.

M5Stack Fire has occupied GPIO16 / 17 to connect with the PSRAM by default, it's conflict with TXD / RXD (GPIO16, GPIO17) of LTE module. Therefore, when using the LTE module with the M5Stack Fire, you might have to cut the TXD and RXD from LTE module and wire fly to another set of UART pin


download EasyLoader

1.EasyLoader is a simple and fast program burner. Every product page in EasyLoader provides a product-related case program. It can be burned to the master through simple steps, and a series of function verification can be performed.

2.After downloading the software, double-click to run the application, connect the M5 device to the computer via the data cable, select the port parameters, and click "Burn" to start burning.

3.The CP210X (USB driver) needs to be installed before the EasyLoader is burned. Click here to download driver


Pin Map

M5Stack GPIO16 GPIO17 5V GND



Arduino IDE

To get complete code, please click here