• firmware file: firmware-t-echo-1.x.x.uf2
• TTGO's GitHub page for the T-Echo
  LILYGO SKU H511
  

Features​

• nRF52840 - Bluetooth BLE 5.0, NFC and very low power consumption
• SX1262 - LoRa transceiver
• 1.54" eInk display
• L76K - GNSS receiver - Supporting GPS, BeiDou, GLONASS & QZSS
• Reset, Program and capacitive touch buttons
• U.FL antenna connector
• Includes BME280 Humidity and Pressure Sensor
• Comes with a case and battery

Dev board return policy

Development boards are specialty items that generally cannot be resold on return, especially if the firmware has been flashed. Defective boards can be replaced or returned for refund within 30 days of purchase. Non-defective boards can be returned in the same time frame if in like-new condition with a 20 percent restocking fee applied. If the board has had altered firmware or became bricked due to a non-standard firmware flash, the board may not be eligible for return.

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.