SPECIFICATIONS

Black 433MHz: K181

Black 433MHz BME280 KIT: K182

Black 868MHz: K155

Black 868MHz BME280 KIT: K183

Black 915MHz: K147

Black 915MHz BME280 KIT: K184

Brand Name: lilygo

Brown 433MHz: K189

Brown 433MHz BME280 KIT: K190

Brown 868MHz: K159

Brown 868MHz BME280 KIT: K152

Brown 915MHz: K149

Brown 915MHz BME280 KIT: K154

Can Choose Colour: Milky / Black / Grey / Brown

Category: Wireless Module

Compatible Audio & Video Equipment Style: Digital-to-Analog Converter (DAC),Professional Audio Equipment,Display Equipment

Cooperating Engineer: Meshtastic

Grey 433MHz: K185

Grey 433MHz BME280 KIT: K186

Grey 868MHz: K161

Grey 868MHz BME280 KIT: K187

Grey 915MHz: K148

Grey 915MHz BME280 KIT: K188

High-concerned chemical: None

Master Chip: NRF52840

Model Number: Meshtastic T-Echo

Optional Frequency Band: 433MHz / 868MHz / 915MHz

Origin: Mainland China

Type: Bluetooth

White 433MHz: H507

White 433MHz BME280 KIT: H513

White 868MHz: H506

White 868MHz BME280 KIT: H512

White 915MHz: H505

White 915MHz BME280 KIT: H511

Wireless Module: LoRa SX1262

LILYGO® & Meshtastic T-Echo:

A evolved version of LILYGO T-BEAM, T-Echo is designed with a focus on Meshtastic compatibility, featuring Bluetooth and low power consumption.
It utilizes the NRF52840 SoC, supporting Bluetooth 5 / Threads / Zigbee multi-protocol.
The LORA function, inherited from T-BEAM, uses the LILYGO SX1262 version functional module with a Semtech SX1262 LORA RF transceiver chip.
Operating in the 433/868/915MHz ISM frequency band, it integrates a high stability TCXO 32MHz crystal oscillator, ensuring half-duplex transceiver functionality with a power of up to +22dBm and receiving sensitivity of -139dBm.
The module enables automatic transceiver switching, internal transmission and reception channel isolation, and employs advanced LORA spread spectrum communication technology for robust anti-interference and privacy. This facilitates long-distance wireless data transmission and reception.

Upgrade Content:

Upgraded from the fragile 3D printed shell to a more durable ABS material enclosure, aligning better with the product's positioning.
Color options have expanded to include white, black, gray, and brown, offering greater variety.

Update time: February 11, 2022

Sample Code For Reference [Github]

If you need technical support please check below link to find more details.