TTGO T-Echo SoftRF NRF52840 LoRa Module with 1.54 E-Paper display and BLE goo VDDIO interface voltage range: 1

VDDIO interface voltage range: 1

Rated voltage: AC 220V±10% 50Hz

Power metering range: 0 ~ 299

It does not "automatically prevent the operation of the power supply"

and automatic pulse width adjustment

TTGO T-Echo SoftRF NRF52840 LoRa Module with 1.54 E-Paper display and BLE goo VDDIO interface voltage range: 1LILYGO T Echo is a version evolved from LILYGO T BEAM. At the beginning of the design, more consideration was to adapt to Meshtastic and SotfRF, so Bluetooth and low power consumption were considered when designing, and NRF52840 Advanced Bluetooth 5 was selected with Thread and Zigbee multiprotocol SoC. The LORA function continues T BEAM's LILYGO SX1262 (alternate for SX1276) version functional module. T SX1262 wireless transceiver module, using