CircuitMess Chatter 2.0

communicator
CircuitMess Chatter 2.0

DIY encrypted LoRa communicator kit building a pair of devices for off-grid text messaging up to 2km range. Features ESP32, LLCC68 LoRa radio, and 160×128 TFT display.

Xtensa LX6 dual-core @ 240MHz, FPU520KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 4.2
~$217View

Heltec Wireless Tracker V2

Heltec Wireless Tracker V2

ESP32-S3 development board with SX1262 LoRa (28dBm), UC6580 dual-frequency GNSS, 0.96" TFT display, solar charging, and Meshtastic/MeshCore support for GPS tracking and mesh networking.

Xtensa LX7 dual-core @ 240MHz, FPU, AI vector extensions, HW crypto (AES/SHA/RSA)512KB SRAM8MB (Quad SPI)WiFi 802.11 b/g/nBLE BLE 5.0
~$27View

Heltec Wireless Tracker

Heltec Wireless Tracker

ESP32-S3 development board with integrated SX1262 LoRa transceiver, UC6580 dual-frequency GNSS receiver, and 0.96-inch TFT display for IoT asset tracking, Meshtastic mesh networking, and LoRaWAN appli

Xtensa LX7 dual-core @ 240MHz, FPU, hardware crypto (AES/SHA)512KB SRAM8MBWiFi 802.11 b/g/nBLE BLE 5.0
~$23View

Heltec Vision Master E213

Heltec Vision Master E213

ESP32-S3 development board with 2.13-inch E-Paper display and optional SX1262 LoRa radio, supporting Meshtastic, LoRaWAN, Arduino, and MicroPython. Features WiFi, BLE 5.0, ultra-low 20uA deep sleep, l

Xtensa LX7 dual-core @ 240MHz, FPU, AI vector extensions, HW crypto (AES/SHA/RSA)512KB SRAM16MBWiFi 802.11 b/g/nBLE BLE 5.0

Heltec Vision Master E290

Heltec Vision Master E290

ESP32-S3 development board with 2.9-inch e-ink display and optional SX1262 LoRa radio, featuring Raspberry Pi GPIO header, Meshtastic support, and 18uA deep sleep for battery-powered IoT and mesh netw

Xtensa LX7 dual-core @ 240MHz, FPU, vector instructions, AESSHA hardware crypto512KB SRAM16KB RTC SRAM16MB (QSPI, W25Q128)WiFi 802.11 b/g/nBLE BLE 5.0
~$20View

Heltec Wireless Paper

Heltec Wireless Paper

ESP32-S3 + SX1262 LoRa E-Ink development board with 2.13" e-paper display, WiFi, BLE 5.0, and LoRa connectivity. Designed for electronic shelf labels, Meshtastic mesh nodes, and low-power IoT sensor d

Xtensa LX7 dual-core @ 240MHz, FPU, vector instructions512KB SRAM8MB (integrated)WiFi 802.11 b/g/nBLE BLE 5.0
~$16View

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More to explore — popular traits shared by devices with Bus Interfaces: SPI (LoRa).