Heltec IOT Lora Node 151 LN151 868 915 mhz STM32 L151CCU6 SX1276 lora Development Board with Antenna

Source Parameter MCU:STM32L151CCU6(Ultra-low-power 32-bit MCU ARM-based Cortex-M3) LoRa chip:SX1276/SX1278 LoRa bands:EU_433, CN_470_510, EU_863_870, US_902_928 four bands optional LoRa maximum output power:18dB ± 2dB Hardware Resource:USART x 3; SPI x 2; I2C x 2; I2S x 2; USB 2.0 x 1                                 12 – bits ADC; 12 – bits DAC                                 DMA controller                                 38 general GPIO Flash:256KB FLASH?32KB SRAM?8KB EEPROM?128B BACKUP REGISTER Interface:Micro USB x 1; LoRa antenna(SMA) x 1 Size:56.6 x 24 x 20 mm Battery type:1/2 AA Lithium chlorine sulfite battery Battery detection circui:yes External device power control?Vext?:yes Low power designDeep Sleep: 2.5uA