Heltec L76K High-Precision GNSS Module for LoRa 32 and Mesh Node T114

The Heltec L76K is a compact and efficient GNSS module designed to add satellite positioning capability to compatible boards such as Heltec LoRa 32 and Heltec Mesh Node T114. It supports GPS, GLONASS and QZSS, providing efficient satellite reception and reliable performance for positioning applications.

With simultaneous GPS and GLONASS reception, the module can access a larger number of visible satellites, helping to reduce time to first fix and improve positioning accuracy, even in dense urban environments or challenging signal conditions. EASY™ technology provides automatic orbit prediction for faster positioning, while AlwaysLocate™ optimises power consumption through intelligent periodic mode control.

It is suitable for asset tracking, telemetry, mesh networks, portable devices, IoT, LoRa, Meshtastic, MeshCore and industrial applications where reliable location data is required.

Main features:

• Type: GNSS / GPS module
• Model: Heltec L76K
• Compatible with Heltec LoRa 32
• Compatible with Heltec Mesh Node T114
• Supported systems: GPS, GLONASS and QZSS
• Simultaneous GPS + GLONASS reception
• EASY™ technology for faster positioning
• AlwaysLocate™ technology for power saving
• Supports DGPS and SBAS: WAAS, EGNOS, MSAS and GAGAN
• Active interference cancellation: AIC
• Suitable for positioning, tracking and telemetry
• Suitable for LoRa, Meshtastic, MeshCore, IoT and portable systems
• Includes 8P adapter cable
• Brand: Heltec

Technical specifications:

• Tracking channels: 33
• Acquisition channels: 99
• PRN channels: 210
• Acquisition sensitivity: -148 dBm
• Position accuracy: 2.5 m CEP
• Timing accuracy: 1PPS 10 ns
• Cold start TTFF: <15 s with EASY™ / <35 s without EASY™
• Hot start TTFF: <1 s
• Warm start TTFF: <5 s with EASY™ / <30 s without EASY™
• Supply voltage: 2.8 V to 4.3 V
• Power consumption: 18 mA @ 3.3 V
• Data update rate: up to 10 Hz
• NMEA messages: 0183 v2.3 / v4.0
• Interface: 1.25 mm 8-pin SMD
• Dimensions: 10.1 x 9.7 x 2.5 mm
• Operating temperature: -40 ºC to 85 ºC
• Storage temperature: -45 ºC to 125 ºC
• Supports “Balloon Mode” for high-altitude operation up to 80 km