Heltec Wireless ESP32 Stick Lite SX1276 LoRaWAN Protocol WIFI BLE Module (FREQUENCY: 433MHZ-470MHZ)

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FREQUENCY: 433MHZ-470MHZ

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.

Product	Type????	MCU	FLASH	Battery	Battery Detect	Vext?????	Low Power?????	Display
WiFi LoRa 32	Dev-Board	ESP32	4MB	Lithium????	x	x	x	OLED (128x64)
WiFi LoRa 32(V2) (Product ID: 1639291)	Dev-Board	ESP32	8MB	Lithium????	????	????	800uA	OLED (128x64)
Wireless Stick (Product ID: 1639290)	Dev-Board	ESP32	8MB	Lithium????	????	????	800uA	OLED (64x32)
Wireless Stick Lite (This item)	Dev-Board	ESP32-PICO	4MB	Lithium????	????	????	35uA	x
Wireless Shell (Product ID: 1638101)	Module	ESP32-PICO	4MB	????	????	x	10uA	x
LoRa Kit 151 (Product ID: 1639289)	Dev-Board	STM32L151CBU6	128kB	Lithium	x	x	7uA	x
LoRa Node 151 ?(Product ID: 1638100)	Dev-Board	STM32L151CCU6	256kB	1/2 AA Lithium chlorine sulfite battery	????	????	1.8uA	x
Turtle Board (Product ID: 1638099)	Dev-Board	STM32L432KC	256kB	AAA x 2	????	????	5uA	x

Notes: ? ???? ???? Type: Dev-Board ???? Can be used directly; Module ???? Only core function, need to cooperate with external PCB or circuit. ???? ???? Lithium: All lithium battery socket for Heltec boards is SH1.25-2; ????? ???? Vext: 3.3V(500mA) output, for external devices (e.g. sensors) power supply, in deep sleep mode, Vext can be shut down via software; ????? ???? Low Power: Products???? low power design, of Whole Circuit, the measured data are the current of the system during deep sleep.
Feature:

-Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core + Internal 4MB FLASH), with LoRa node chip SX1276; -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 switching); -Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa; -Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;