MCU nRF52840 (Bluetooth), LoRa chip SX1262. Low power consumption, deep sleep 11uA. Rich interfaces (2x1.25mm LiPo connector, 2x1.25mm solar panel connector, 8x1.25mm GNSS module connector) greatly increase the scalability of the board.<br><br>MCU:nRF52840 LoRa Node Chip:SX1262 Memory:1M ROM 256KB SRAM Bluetooth:Bluetooth 5, Bluetooth mesh, BLE Storage temperature:-30-80℃ Operating temperature:-20-70℃ Operating Humidity:90%(No condensing) Power Supply:3-5.5V (USB),3-4.2(Battery) Hardware Resource:USB 2.0, 2*RGB, 2*Button, 4*SPI, 2*TWI, 2*UART,4*PWM, QPSI, I2S, PDM,QDEC Etc. Interface:Type-C USB, 2x1.25 lithium battery connector, 2x1.25 solar panel connector, LoRa ANT (IPEX1.0),8x1.25 GPS module connector, 2x13x2.54 Header Pin Note:Due to different production batches, there are differences in silk screen printing/appearance, which does not affect usage. Type:A:863-928mhz Colour:Black Material:PCB+Plastic<br><br>Package Contents: 1 * T114 no Screen kit 1 * Case Module<br><br>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.