# Heltec HT-M00S Single Channel LoRa Gateway > A compact, wall-mountable single-channel LoRaWAN gateway based on the HT-CT62 module (ESP32-C3 + SX1262). Designed for indoor use with a built-in PCB antenna, it can listen to over a dozen LoRa nodes simultaneously and forward data to cloud servers via WiFi. Available in 470MHz, 868MHz, and 915MHz variants. ## Quick Facts - **Brand:** Heltec Automation - **Board Type:** lorawan-gateway - **Price:** ~$18 - **CPU:** RISC-V single-core @ 160MHz, 4-stage pipeline - **CPU Architecture:** RISC-V - **CPU Cores:** 1 - **RAM:** 400KB SRAM - **Flash:** 4MB SiP Flash - **USB:** USB-C (power only) - **Power:** 5V - **Operating Voltage:** 3.3V - **Operating Temp:** -40°C to +85°C - **Dimensions:** 46 × 46 × 13mm - **Weight:** 60g - **Antenna:** PCB antenna (built-in) - **SD Card:** No ## Connectivity - **Wifi:** 802.11 b/g/n - **Bluetooth:** BLE 5.0 - **Lora:** SX1262 470/868/915MHz ## Use Cases - lorawan-gateway - private-lorawan-network - lorawan-prototyping - sensor-data-collection - smart-home-hub - iot-gateway ## Components - **ESP32-C3FN4** (mcu): Espressif ESP32-C3FN4 single-core RISC-V MCU at 160MHz with 400KB SRAM, 4MB in-package flash, WiFi 802.11 b/g/n, and Bluetooth LE 5.0. Features hardware AES-128/256 and SHA acceleration, secure boot, and flash encryption. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-c3_datasheet_en.pdf&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) - **SX1262** (radio): Semtech SX1262 long-range, low-power sub-GHz RF transceiver supporting LoRa and FSK modulation in the 150-960MHz band. Delivers up to +22dBm TX power with -134dBm receive sensitivity at SF12/125kHz. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fcdn.sparkfun.com%2Fassets%2F6%2Fb%2F5%2F1%2F4%2FSX1262_datasheet.pdf&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) - **HT-CT62** (module): Heltec HT-CT62 integrated module combining ESP32-C3FN4 and SX1262 in a compact 17.78 x 17.78 x 2.8mm stamp-hole package with built-in RF matching circuits. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fresource.heltec.cn%2Fdownload%2FHT-CT62%2FHT-CT62%28Rev1.1%29.pdf&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) ## Protocols - **SPI** (SPI0): SCK: GPIO10, MOSI: GPIO7, MISO: GPIO6, CS: GPIO8 - **UART**: TX: GPIO21, RX: GPIO20 - **I2C**: SDA: GPIO8, SCL: GPIO9 - **LoRa**: DIO1: GPIO3, BUSY: GPIO4, RESET: GPIO5, CS: GPIO8 ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | GPIO0 | ADC1_CH0 | ADC | digital-input, digital-output, adc, pwm, rtc | | GPIO1 | ADC1_CH1 | ADC | digital-input, digital-output, adc, pwm, rtc | | GPIO2 | LED / ADC1_CH2 | GPIO | digital-input, digital-output, adc, pwm, rtc | | GPIO3 | LoRa DIO1 | LoRa | digital-input, digital-output, adc, pwm, rtc | | GPIO4 | LoRa BUSY | LoRa | digital-input, digital-output, adc, pwm, rtc | | GPIO5 | LoRa RESET | LoRa | digital-input, digital-output, pwm, rtc | | GPIO6 | SPI MISO (LoRa) | SPI | digital-input, digital-output, pwm | | GPIO7 | SPI MOSI (LoRa) | SPI | digital-input, digital-output, pwm | | GPIO8 | SPI CS / I2C SDA (LoRa) | SPI | digital-input, digital-output, pwm | | GPIO9 | USER Button / I2C SCL | I2C | digital-input, digital-output, pwm | | GPIO10 | SPI SCK (LoRa) | SPI | digital-input, digital-output, pwm | | GPIO18 | USB D- | USB | digital-input, digital-output | | GPIO19 | USB D+ | USB | digital-input, digital-output | | GPIO20 | UART RX | UART | digital-input, digital-output, pwm | | GPIO21 | UART TX | UART | digital-input, digital-output, pwm | ## Description ## Overview The Heltec HT-M00S is a compact single-channel LoRa gateway built around the HT-CT62 module, which combines an ESP32-C3FN4 RISC-V microcontroller with a Semtech SX1262 LoRa transceiver. Measuring just 46 x 46 x 13mm and weighing 60g, it is designed for wall-mounted indoor deployment with a clean, minimal enclosure. The gateway operates as a single-channel LoRaWAN packet forwarder, capable of simultaneously listening to more than a dozen LoRa end nodes (tested at 10-minute transmission intervals) and relaying their data to a LoRaWAN network server via WiFi. It supports spreading factors SF7 through SF12 at 125kHz bandwidth, with receive sensitivity down to -134dBm and transmit power up to 21dBm. Configuration is straightforward — either scan a QR code with the Heltec mobile app or connect to the gateway's WiFi AP (192.168.4.1) to set parameters like frequency, spreading factor, server address, and gateway ID. Firmware updates are delivered over-the-air (OTA). The HT-M00S is available in three frequency variants covering CN470, EU868/IN865, and US915/AU915/AS923/KR920 bands. This gateway is best suited for private LoRaWAN network prototyping, scheme verification, communication link development, and smart home sensor data collection. It is not intended for public network use (e.g., TTN) or large-scale deployments, but excels as an affordable entry point for LoRa experimentation and small-scale IoT projects. ## Where to Buy - [Heltec Store](https://openhardware.directory/r?to=https%3A%2F%2Fheltec.org%2Fproject%2Fht-m00s-single-channel-lora-gateway%2F&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) — $18.00 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fheltec.org%2Fproject%2Fht-m00s-single-channel-lora-gateway%2F&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FHelTecAutomation&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) - [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fwiki.heltec.org%2Fdocs%2Fdevices%2Florawan-application%2Flora-gateway%2Fht-m00s%2F&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) - [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fresource.heltec.cn%2Fdownload%2FHT-M00S%2FHT-M00S.pdf&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) - [schematics](https://openhardware.directory/r?to=https%3A%2F%2Fresource.heltec.cn%2Fdownload%2FHT-CT62%2FHT-CT62_Schematic_Diagram.pdf&ref=openhardware.directory&product=heltec-ht-m00s&source=md-export) ## Tags `lora`, `lorawan`, `gateway`, `esp32-c3`, `sx1262`, `iot`, `heltec`, `single-channel`, `wifi` ## Images ![Heltec HT-M00S Single Channel LoRa Gateway](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-ht-m00s/4725222f7844.png) ![Heltec HT-M00S Single Channel LoRa Gateway](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-ht-m00s/9dccc5a19113.png) ![Heltec HT-M00S Single Channel LoRa Gateway](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-ht-m00s/bba3f2140013.png) ![Heltec HT-M00S Single Channel LoRa Gateway](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-ht-m00s/357876e0f035.jpg) --- [View full device page](https://openhardware.directory/devices/heltec-ht-m00s)