HT-M00 Firmware Upgrade

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Summary

This article aims to describe how to upgrade the HT-M00 firmware and the processing method of overwriting the HT-M00 firmware.

Tip

Since the HT-M00 firmware version V1.8 has updated the gateway activation code algorithm. Therefore, upgrading from V1.7 and below to V1.8 and above requires reactivating the HT-M00 gateway. Please send the gateway ESP32 chip ID to “support@heltec.cn”, we will recalculate the activation code for you and upload it to the server.


 

Firmware Upgrade Logs

  • V1.7

    • Add noise floor automatic calibration function;

    • Known bug fix.

  • V1.8

    • Timing check SX1276 working status, if the SX1276 chips working not normal, system auto reset.

  • V1.9

    • Add preamble length parsing function. If the json package sent by the server has a pream field, HT-M00 will parse and forward it.

  • V2.0

    • Add DHCP support in Wi-Fi connection;

    • The upstream and downstream ports can be set separately;

    • Can modify the heartbeat cycle by yourself.

    • Can modify the gateway ID by yourself.

 

Upgrade Firmware

Download HT-M00 corresponding upgrade firmware

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Enter the HT-M00 gateway configuration interface by connecting to the HT-M00 WiFi(can refer to HT-M00 Quick Start),click “Firmwaer Update”。

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Click “Select firmware” to select the corresponding upgrade firmware that has been downloaded, and click “Update” to upgrade.

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After the upgrade is complete, a corresponding prompt will pop up and restart the gateway.

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The Processing Method of Overwriting the HT-M00 Firmware

Download Firmware

Download HT-M00 complete Firmware

Open the downloaded file and edit the “M00_Vx_x.bat” file.

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Change the COM port to the COM port corresponding to HT-M00.

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After the modification is completed, run “M00_Vx_x.bat” to complete the gateway firmware upload.

Activate the Gateway

After the firmware download is complete, open the serial port corresponding to the HT-M00 and read the corresponding ESP32 chip ID of the gateway.

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Enter https://resource.heltec.cn/search, enter the ESP32 chip ID to query the serial number corresponding to the gateway.

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Open the serial port corresponding to the HT-M00, and send the command “AT+CDKEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx” through the serial port to activate the gateway. Among them, “xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx” is the 32-bit license. For example, if the license is 0x12345678, 0x12345678, 0x12345678, 0x12345678, the activation command is AT+CDKEY=12345678123456781234567812345678.

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After the screen displays normally, the gateway is activated successfully.

Tip

For lower version firmware, the firmware can be upgraded according to the “firmware upgrade” method.