ESP32 LoRa Development Board SX1276 Chip 915MHZ LoRaWAN Low Power Consumption Support Arduino IDE
Product descriptionTechnical ParametersMCU: STM32L151CCU6LoRa chip: SX1276LoRa maximum output power: 19dB ± 1dBLoRa bands: EU_433, CN_470_510, EU_863_870, US_902_928 (four bands optional)Hardware Resource: USART x3; SPI x2; I2Cx2; I2S x2; USB2.0 x1, 12–bits ADC; 12–bits DAC, DMA controller, 38 general GPIOInterface: Micro USB x1; LoRa antenna(SMA) x1Flash: 256KB FLASH; 32KB SRAM; 8KB EEPROM; 128B BACKUP REGISTERBattery type: 1/2AA Lithium batteryBattery detection circuit: √External device power control（Vext）: √Deep Sleep: 2.5uASize: 56.6 x24 x20mmPackage Including1 * STM32L151CCU6 Development board1 * 915MHz AntennaProduct Selection Table:★https://docs.heltec.cn//en/products/lora/lora_node/heltec_lora_node_list_eu; Summary of Common Problems:★http://www.heltec.cn/summary-of-common-problems-in-wifi-kit-series-continuous-update/?lang=en; AutoCAD 2017 version drawding:★docs.heltec.cn/download/LoRa_Node_151.dwgLora Development Board: Microprocessor STM32L151CCU6(ARM Cortex-M3 32-bit RISC core, support DFU mode), with LoRa node chip SX1276; Onboard user resources available: 256 Kbytes of Flash memory with ECC; 32 Kbytes of RAM; 8 Kbytes of true EEPROM with ECC; 128-byte backup register.Small Body and Power Function:Support lora wireless communication and keil. With perfect low-power design, good RF circuit design, battery management system. Provide complete LoRaWan(ClassA/C)source code(support ABP and OTAA). Enter low power mode under standard lorawan protocol, the Deep Sleep Current≤1.8uA.1/2AA lithium Asian Battery Holder with Micro USB interface, complete protection, ESD protection, circuit protection and other protection measures, onboard lithium battery interface, integrated battery management system (battery power detection, USB / battery power automatic switching). Reserve SMA antenna interface for LoRa use;Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing.Support DFU mode download; wifi speed: 150Mbps; output power: 19dB±1dB; accept sensitivity: -128dBm. Products can be applied to smart cars, intelligent street lights, drone control, robot control, equipment monitoring, environmental monitoring, etc.