• Dual-band: 150–960 MHz and 2.4 GHz on one module

The Wio-LR2021 module carries both bands, so one design can move between sub-GHz for long range and 2.4 GHz for worldwide, duty-cycle-free links. No second radio and no second board revision.

• Fast bursts: FLRC up to 2.6 Mbps for images and audio

FLRC sends a payload in one short burst instead of trickling bytes, so a compressed image or a voice clip arrives in a moment rather than a minute. Drop to LoRa when range matters more.

• Edge AI: ESP32-S3 with 8 MB PSRAM runs detection on board

The 8 MB PSRAM holds camera frames and model buffers, and the dual-core LX7 applies vector instructions to detection and recognition. Frames are judged locally, so the radio carries conclusions rather than raw pixels.

• Camera and audio: a detachable media HAT is included

The HAT adds a 2 MP GC2145 camera, a MEMS microphone, an ES8311 codec, and an NS4150B amplifier with a speaker connector. It shares the main board footprint and links over a 14-pin FPC.

• Field power interfaces: solar, Li-ion, and switchable peripheral rails

A 5 V solar input and a 3.7 V Li-ion connector feed a CN3165 charger that watches battery temperature. Camera, audio, OLED, and Grove rails can be switched off in software when a node is idle.

Diagram

Pinout

• Remote Visual Inspection: Inspect towers, culverts, and substations without sending a crew. The node captures a frame, runs detection on the ESP32-S3, and returns a thumbnail over LoRa or a full image over FLRC at up to 2.6 Mbps. Best for utilities, telecom, and infrastructure teams.
• Automated Meter Reading: Read water, gas, and electricity meters from a distance. The on-device model turns the camera image into digits, so only a few dozen bytes travel over LoRa. Best for utility metering and smart-city deployments.
• Edge-Triggered Surveillance: Keep the radio quiet until something happens. When a person is detected, the node sends the key frame with a timestamp over the dual-band link, with no 4G plan and no mains power. Best for farms, construction sites, and remote facilities.
• Off-Grid Asset and Environmental Monitoring: Track remote assets where there is no power and no network. Sensor data goes out over long-range LoRa, and a picture follows when a value looks wrong. Best for agriculture, pipelines, and environmental research.