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Description

Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276/SX1278;.
Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures;.
Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic sw);.
Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa use;.
With good RF circuit design and basic low-power design ( current ≤800uA), it is convenient for IoT application vendors to quickly verify solutions and deploy applications;.

Source Parameter MCUE:SP32( 240MHz Tensilica LX6 dual-core + 1 ULP, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth) LoRa chip:SX1276 LoRa bands:EU_433, CN_470_510, EU_863_870, US_902_928 four bands optional LoRa maximum output power:18dB ± 2dB Hardware resources: UART x 3; SPI x 2; I2C x 2; I2S x 1 12 – bits ADC; 8 – bits DAC 29 general GPIO Display:0.49 inch OLED FLASH:4MB(32M-bits) SPI FLASH interface:Micro USB x 1; LoRa antenna interface(IPEX) x 1 Size:50.2 x 25.5 x 9.74 mm USB to UART :BridgeCP2102 Battery Type:3.7V Lithium(SH1.25 x 2) Battery detection circuit: Yes External device power control(Vext) :yes Low power: design Deep 40uA

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Heltec IOT Lora Wireless Stick Upgrade esp32 lora/WiFi lora Development Board with 0.49inch OLED Display 868MHZ/915MHZ

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