# Heltec Sufficient IoT Hub

> Linux-based IoT hub with Allwinner T113-S3 dual-core ARM Cortex-A7 SoC, LoRa (SX1262), WiFi, Ethernet, and optional LTE. Runs Debian 10 with a dedicated IoT OS, CLI, and web UI for no-code device management.

## Quick Facts

- **Brand:** Heltec
- **Board Type:** SBC
- **Price:** ~$33.9
- **Product Readiness:** consumer
- **CPU:** Allwinner T113-S3
- **CPU Architecture:** ARM Cortex-A7 dual-core
- **CPU Cores:** 2
- **RAM:** 128 MB DDR3
- **Flash:** SD 3.0 (8GB/16GB)
- **USB:** USB Type-C Host
- **Power:** 5V USB-C (~150mA active)
- **Operating Voltage:** 3.3V
- **Operating Temp:** -40C to 85C
- **Dimensions:** 90 x 41 x 11 mm
- **Weight:** 78g
- **Antenna:** U.FL/IPEX
- **SD Card:** microSD

## Connectivity

- **Wifi:** 802.11b/g/n
- **Ethernet:** 10/100 Mbps
- **Lora:** SX1262 (433, 470-510, 863-870, 902-928 MHz)
- **Cellular:** Optional LTE Cat.1

## Open Source

- **Status:** open-firmware
- **Firmware:** Yes
- **Schematics:** No
- **PCB Layout:** No

## Certifications

CE, RoHS

## Compatible Firmware

Debian 10 (Linux 5.4.61), Sufficient IoT OS

## Use Cases

- iot
- iot-gateway
- environmental-monitoring
- smart-home

## Components

- **Allwinner T113-S3** (SoC): Application processor with dual ARM Cortex-A7 cores at 1GHz, 32KB L1 cache per core, 256KB L2 cache. Designed for embedded Linux applications. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Flinux-sunxi.org%2FT113-S3&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)
- **Semtech SX1262** (LoRa Radio): Sub-GHz LoRa transceiver supporting 150MHz to 960MHz frequency range with up to +22dBm output power and -148dBm sensitivity. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.semtech.com%2Fproducts%2Fwireless-rf%2Flora-connect%2Fsx1262&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)

## Protocols

- **I2C**
- **SPI**
- **PWM**
- **ADC**
- **UART**
- **MQTT**

## Accessories

- HT-1303 LoRaWAN Module
- EG21-G LTE Module
- RGB Extension Panel
- WiFi Antenna
- LoRa Antenna

## Available Software

- **[Sufficient IoT OS](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FHelTecAutomation%2FSufficient-IoT-Application&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)**

## Description

# Heltec Sufficient IoT Hub

A compact Linux system-in-package designed for IoT gateway and automation use cases. Built around the Allwinner T113-S3 SoC with dual-core ARM Cortex-A7 at 1GHz, 128MB DDR3 RAM, and SD card storage (8GB/16GB options).

## Key Features

- **No-code operation**: Dedicated Sufficient IoT OS with CLI and web UI allows users without programming experience to control PWM, I2C, SPI, and LoRa interfaces
- **Multi-protocol connectivity**: WiFi 802.11 b/g/n, LoRa (SX1262), 10/100 Ethernet, and optional LTE Cat.1
- **Gateway-ready**: Can function as an MQTT broker, sensor data aggregator, or LoRaWAN gateway (with HT-1303 expansion)
- **Low power consumption**: ~150mA active, ~100mA standby, 10uA deep sleep
- **Industrial temperature range**: -40C to 85C

## Connectivity

| Interface | Details |
|-----------|---------|
| WiFi | IEEE 802.11 b/g/n (2.4GHz) |
| LoRa | SX1262 -- 433/470-510/863-870/902-928 MHz |
| Ethernet | 10/100 Mbps |
| LTE | Optional Cat.1 module (Micro SIM) |

## Interfaces

- I2C, SPI, ADC, PWM
- USB Host (Type-C)
- GPIO header with pin map

## Included Accessories

- 2.4GHz WiFi antenna
- LoRa antenna
- Type-C data cable
- 8GB TF card
- Acrylic protective plate

## Optional Expansions

- HT-1303 LoRaWAN Concentrator Module
- EG21-G LTE/4G Module
- RGB Extension Panel

## Resources

- [Documentation](https://docs.heltec.org/en/node/sufficient_iot_hub/index.html)
- [Source Code (GitHub)](https://github.com/HelTecAutomation/Sufficient-IoT-Application)
- [Downloads](https://resource.heltec.cn/download/)

## Where to Buy

- [Buy for $33.9](https://openhardware.directory/r?to=https%3A%2F%2Fheltec.org%2Fproject%2Fsufficient-iot-hub%2F&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fheltec.org%2Fproject%2Fsufficient-iot-hub%2F&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)
- [documentation](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.heltec.org%2Fen%2Fnode%2Fsufficient_iot_hub%2Findex.html&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)
- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2FHelTecAutomation%2FSufficient-IoT-Application&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)
- [downloads](https://openhardware.directory/r?to=https%3A%2F%2Fresource.heltec.cn%2Fdownload%2F&ref=openhardware.directory&product=heltec-sufficient-iot-hub&source=md-export)

## Tags

`iot-hub`, `linux`, `lora`, `gateway`, `allwinner`, `arm-cortex-a7`, `mqtt`, `no-code`

## Images

![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/b4da8420bc54.png)
![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/6e956bfd2a4f.png)
![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/8a2cb81e26a0.png)
![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/78a1957b57b5.png)
![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/050e3fd83b47.png)
![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/771ec82417dd.png)
![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/719b99043bf7.png)
![Heltec Sufficient IoT Hub](https://nbg1.your-objectstorage.com/openhardware-directory/entities/heltec-sufficient-iot-hub/292b72e589e9.png)

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