1. Excellent performance and convenient operation;2. MCU nRF52840 (Bluetooth), LoRa chip SX12623. Low power consumption, deep sleep 11 A;4. Powerful display function (optional), onboard 1.14-inch TFT-LCD display screen5. 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 boardProduct 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: nRF52840LoRa Node Chip: SX1262Frequency:863-928mhzMaximum TX power: 21 1dBmMaximum receiving sensitivity: -135dBm@SF12 =125KHzBluetooth: Bluetooth LE: Bluetooth 5,Bluetooth mesh: USB 2.0,4 * SPI,2 * TWI,2 * UART,4 * PWM,QPSI,12S,PDM,QDEC,etc.Storage: 1M ROM256KB Interface: Type-C USB2 * 1.25 lithium battery connector2 * 1.25 solar panel connectorLoRa ANT(IPEX1.0)8 * 1.25 GPS module connector2 * 13 * 2.54 plug pinsBattery: Powered and by a 3-4.2V battery. (The product does not come with a battery)Working temperature: -20-70 Colour:As ShownMaterial:Metal PlasticDue to different batches, there may be differences in product appearance and printed text, which not affect usePackage Contents:1 * Mesh node T144 setOnly 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.