Heltec STM32L151CCU6 + SX1276 LoRaWAN Node Ultra-low Power Support 2AA Lithium Sub Battery Power Supply Module

Heltec LoRa Node Products Difference Table Heltec LoRa product family already included follow options LoRa spread spectrum communication node Battery powered Good RF circuit design and impedance matching ProductType①MCUFLASHBatteryBattery DetectVext③Low Power④DisplayWiFi LoRa 32Dev BoardESP324MBLithium②xxxOLED 128x64 WiFi LoRa 32 V2 Product ID 1639291 Dev BoardESP328MBLithium②800uAOLED 128x64 Wireless Stick Product ID 1639290 Dev BoardESP328MBLithium②800uAOLED 64x32 Wireless Stick Lite Product ID 1638098 Dev BoardESP32 PICO4MBLithium②35uAxWireless Shell Product ID 1638101 ModuleESP32 PICO4MBx10uAxLoRa Kit 151 Product ID 1639289 Dev BoardSTM32L151CBU6128kBLithiumxx7uAxLoRa Node 151 This item Dev BoardSTM32L151CCU6256kB1 2 AA Lithium chlorine sulfite battery1 8uAxTurtle Board Product ID 1638099 Dev BoardSTM32L432KC256kBAAA x 25uAxNotes ①Type Dev BoardCan be used directly ModuleOnly core function need to cooperate with external PCB or circuit ②Lithium All lithium battery socket for Heltec boards is SH1 25 2 ③Vext 3 3V 500mA output for external devices e g sensors power supply in deep sleep mode Vext can be shut down via software ④Low Power Products low power design of Whole Circuit the measured data are the current of the system during deep sleep Feature CE Certificate Microprocessor STM32L151CCU6 ARM Cortex M3 32 bit RISC core support DFU mode with LoRa node chip SX1276 SX1278 Onboard user resources available 256 Kbytes of Flash memo