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v1.0.0 - English Version

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@fly2008begin fly2008begin released this 20 Feb 10:27
· 16 commits to main since this release
v1.0.0
9d0175e

HiTerm v1.0.0 - English Version

Features

  • P2P Encrypted Chat — Direct device-to-device messaging via ESP-NOW with end-to-end AES-128-GCM encryption
  • Device Pairing — 6-digit pairing code system, supports up to 8 paired devices
  • Message History — Stored on SD card, per-conversation
  • Range Test — Real-time signal quality monitoring
  • Power Management — Screen timeout (5/10/15/30m) + deep sleep (15/30/60m/Off)
  • Sound Notifications — Configurable volume levels (Mute/Low/Med/High)
  • Relay Support — Multi-hop message forwarding (up to 3 hops) to extend communication range

Hardware Requirements

  • M5Cardputer (ESP32-S3, 240x135 LCD, 56-key keyboard)
  • MicroSD card (optional, for message history)
  • ESP32 board(s) for relay (optional, any ESP32 variant)

Firmware Files

  • HiTerm-M5Cardputer-v1.0.0-EN.bin — Main chat device firmware for M5Cardputer
  • HiTerm-Relay-ESP32C3-v1.0.0.bin — Relay firmware for ESP32 (tested on ESP32-C3, compatible with all ESP32 variants)

Flashing Instructions

M5Cardputer

Using esptool.py:

esptool.py --chip esp32s3 --port /dev/ttyUSB0 write_flash 0x0 HiTerm-M5Cardputer-v1.0.0-EN.bin

Or use M5Burner for a GUI experience.

Relay Device

esptool.py --chip esp32c3 --port /dev/ttyUSB0 write_flash 0x0 HiTerm-Relay-ESP32C3-v1.0.0.bin

For other ESP32 variants, change --chip accordingly (esp32, esp32s2, esp32s3, esp32c3).

Quick Start

  1. Flash firmware to M5Cardputer
  2. Power on, navigate to Pair menu
  3. Both devices will auto-discover and exchange keys
  4. Select Chat to start messaging

Documentation

See README.md for complete documentation.

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