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Version: 2.8

HELTEC® HT-CT62

Heltec HT-CT62

The Heltec HT-CT62 is a tiny, low-cost surface-mount module that combines an ESP32ESP32A chipset of microcontroller made/designed by Espressif, used by a number of devices. Higher power usage than nRF52, but often cheaper and supports Wi-Fi if desired.-C3 MCUMCU (Microcontroller Unit). The microcontroller that runs the firmware on a device. The hardware tables list the MCU for each supported board. with an SX1262SX1262A Semtech sub-GHz LoRa transceiver, used in most current Meshtastic hardware and recommended over the older SX127x series. LoRaLoRaA low-power, long-range wireless communication technology used by Meshtastic devices to enable communication over distances of several kilometers without the need for cellular, Wi-Fi, or other traditional network infrastructures. radio. It is a bare module — with no display, battery, or enclosure — designed to be soldered onto a carrier board, making it a popular building block for DIY Meshtastic nodes.

Specifications​

  • MCUMCU (Microcontroller Unit). The microcontroller that runs the firmware on a device. The hardware tables list the MCU for each supported board.
    • ESP32ESP32A chipset of microcontroller made/designed by Espressif, used by a number of devices. Higher power usage than nRF52, but often cheaper and supports Wi-Fi if desired.-C3FN4 (32-bit RISC-V, up to 160 MHzMHz (Megahertz). A unit of frequency equal to one million hertz (cycles per second), used to specify the operating frequency of LoRa devices in the Meshtastic network, affecting range and data rate.)
      • 4 MB SiP flash
      • 2.4GHz Wi-Fi & Bluetooth LE
  • LoRaLoRaA low-power, long-range wireless communication technology used by Meshtastic devices to enable communication over distances of several kilometers without the need for cellular, Wi-Fi, or other traditional network infrastructures. Transceiver
    • Semtech SX1262SX1262A Semtech sub-GHz LoRa transceiver, used in most current Meshtastic hardware and recommended over the older SX127x series. (max TXTX (Transmit). The transmitting of data over the radio link. 21±1 dBm, sensitivity to -134 dBm)
  • Frequency options
    • 470 MHzMHz (Megahertz). A unit of frequency equal to one million hertz (cycles per second), used to specify the operating frequency of LoRa devices in the Meshtastic network, affecting range and data rate.
    • 868 MHzMHz (Megahertz). A unit of frequency equal to one million hertz (cycles per second), used to specify the operating frequency of LoRa devices in the Meshtastic network, affecting range and data rate.
    • 915 MHzMHz (Megahertz). A unit of frequency equal to one million hertz (cycles per second), used to specify the operating frequency of LoRa devices in the Meshtastic network, affecting range and data rate.
  • Connectors
    • IPEXIPEXA miniature coaxial antenna connector found on many boards. The docs write it as U.FL/IPEX, using the two names interchangeably. 1.0 (U.FLIPEXA miniature coaxial antenna connector found on many boards. The docs write it as U.FL/IPEX, using the two names interchangeably.) antenna socket for LoRaLoRaA low-power, long-range wireless communication technology used by Meshtastic devices to enable communication over distances of several kilometers without the need for cellular, Wi-Fi, or other traditional network infrastructures.
    • 1.27 mm castellated (stamp-hole) pins for SMT assembly

Features​

  • Bare LoRaLoRaA low-power, long-range wireless communication technology used by Meshtastic devices to enable communication over distances of several kilometers without the need for cellular, Wi-Fi, or other traditional network infrastructures. + MCUMCU (Microcontroller Unit). The microcontroller that runs the firmware on a device. The hardware tables list the MCU for each supported board. module — no display, GPSGPS (Global Positioning System). A satellite positioning system. A node with a GPS module determines its own location and can report that position to the mesh., buttons, buzzer, or battery on the module itself.
  • Ultra-low ~10 µA deep-sleep current.
  • Compact 17.78 x 17.78 x 2.8 mm SMT footprint for direct assembly onto a carrier board.

Resources​

  • Firmware file: firmware-heltec-ht62-esp32c3-sx1262-X.X.X.xxxxxxx.bin
  • Purchase Links: