1. Excellent performance and convenient operation;2. MCU nRF52840 (Bluetooth), LoRa chip SX1262 3. Low power consumption, deep sleep 11 A;4. Powerful display function (optional), onboard 1.14-inch TFT-LCD display screen 5. 135 (H) RGBx240 (V) can display 262K colors; 6. Rich interfaces (2 x 1.25mm LiPo connectors, 2 x 1.25mm solar panel connectors) 7. The 7.8 x 1.25mm GNSS module connector greatly increases the expandability of the board Product Description:Mesh Node T114 is a low-power development board based on nRF52840 and SX1262,supporting LoRa and Bluetooth 5.0. Integrated with various power interfaces (5V USB,lithium battery,and solar panel),optional 1.14-inch TFT display screen and GPS module as accessories,with powerful remote communication capabilities,scalability,and low-power design. Use the Heltec nRF52 development environment and library. Parameter: Microcontroller: nRF52840 LoRa Node Chip: SX1262 Frequency:863-928mhz Maximum TX power: 21 1dBm Maximum receiving sensitivity: -135dBm@SF12 =125KHz Bluetooth: Bluetooth LE: Bluetooth 5,Bluetooth mesh : USB 2.0,4 * SPI,2 * TWI,2 * UART,4 * PWM,QPSI,12S,PDM,QDEC,etc. Storage: 1M ROM 256KB Interface: Type-C USB 2 * 1.25 lithium battery connector 2 * 1.25 solar panel connector LoRa ANT(IPEX1.0) 8 * 1.25 GPS module connector 2 * 13 * 2.54 plug pins Battery: Powered and by a 3-4.2V battery. (The product does not come with a battery) Working temperature: -20-70 Colour:As Shown Material:Metal + Plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Mesh node T144 set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.