<p>Perfect for -Compatible! Based on ASR6052 and SX1262; LoRaWAN 1.0.2 support; Ultra low power design, 50uA in deep sleep; Onboard solar energy management system, can directly connect with a 5.5~7V solar panel; Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB \/ battery power automatic switching)</p> <p>Micro-USB interface with complete ESD protection, short circuit protection, RF shielding, and other protection measures</p> <p>Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing</p> <p>Good impedance matching and long communication distance</p> <p>Use Air530 GPS module, GPS \/ Beidou Dual-mode position system support; Onboard 0.96-inch 128 x 64 dot OLED display, which can be used to display debugging information, battery power, and other information.</p> <p>MCU:ASR6502 (48 MHz ARM M0+ MCU, 128KB FLASH, 16KB SRAM )</p> <p>LoRa Chip:ASR6502 (Internal assembled Semtech LoRa Transceiver SX1262)</p> <p>LoRa working band:EU_433</p> <p>LoRa maximum output power:22 +\/- 1dB</p> <p>:</p> <p>UART x 2; SPI x 1; I2C x 1; SWD x 1; ADCx 3; COMP x 1</p> <p>12 - bits ADC; 8 - channel DMA engine</p> <p>14 x GPIO</p> <p>FLASH:128KB internal FLASH</p> <p>Interface:Micro-USB x 1; LoRa (IPEX) x 1</p> <p>Size:55.9 x 27.9 x 9.5 mm</p> <p>USB-UART bridge :CP2102</p> <p>Battery Type: 3.7V Lithium(Battery not include) (SH1.25 x 2 socket)</p> <p>Low power design</p> <p>Deep Sleep :3.5uA</p> <p>GPS: GPS antenna has been built in, and a GPS antenna interface is also provided. You can purchase a GPS antenna yourself</p> <p>Note: Pin header no welding.</p> <p>colour: black</p> <p>Material: PCB+metal</p> <p>Package Contents:</p> <p>1 x Development board</p> <p>2 x Headers</p> <p>1 x 433MHz Antenna</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light 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.</p>