Wireless ESP32 Module SX1276 LoRaWAN Protocol WiFi BLE ESP32-PICO-D4

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$24.99

Ex Tax: $24.99

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Model: EB0042767
SKU: EB0042767

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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	Type①	MCU	FLASH	Battery	Battery Detect	Vext③	Low Power④	Display
WiFi LoRa 32	Dev-Board	ESP32	4MB	Lithium②	x	x	x	OLED (128x64)
WiFi LoRa 32(V2) (Contact Us'>EB0042779)	Dev-Board	ESP32	8MB	Lithium②	√	√	800uA	OLED (128x64)
Wireless Stick (Contact Us'>EB0045252)	Dev-Board	ESP32	8MB	Lithium②	√	√	800uA	OLED (64x32)
Wireless Stick Lite (Contact Us'>EB0045275)	Dev-Board	ESP32-PICO	4MB	Lithium②	√	√	35uA	x
Wireless Shell (This item)	Module	ESP32-PICO	4MB	–	√	x	10uA	x
LoRa Kit 151 (Contact Us'>EB0042714)	Dev-Board	STM32L151CBU6	128kB	Lithium	x	x	7uA	x
LoRa Node 151 (Contact Us)	Dev-Board	STM32L151CCU6	256kB	1/2 AA Lithium chlorine sulfite battery	√	√	1.8uA	x
Turtle Board (Contact Us'>EB0042551)	Dev-Board	STM32L432KC	256kB	AAA x 2	√	√	5uA	x

Notes:

① – Type:

Dev-Board – Can be used directly;

Module – Only core function, need to cooperate with external PCB or circuit.

② – Lithium: All lithium battery socket for Heltec boards is SH1.25-2;

③ – Vext: 3.3V(500mA) output, for external devices (e.g. sensors) power supply, in deep sleep mode, Vext can be shut down via software;

④ – Low Power: Products’ low power design, of Whole Circuit, the measured data are the current of the system during deep sleep.

Feature:

-Main control chip ESP32-PICO (dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276;

-RF shielding(contain a shield shell) and other protection measures;

-Integrated WiFi, LoRa, Bluetooth network connections, both of them are IPEX socket;

-Support the ARDUIN0 development environment;

-(Exclusive) Supports the ARDUIN0 version of the ESP32 + LoRaWAN protocol routine provided by Heltec. This is a standard LoRaWAN protocol that can communicate with any gateway/base station running the LoRaWAN protocol (requires serial number activation, only the development of the company) The board is available, the serial number can be queried on this page);

-With good RF circuit design and basic low-power design (sleep current: 10uA theoretically), it is convenient for IoT application vendors to quickly verify solution and deploy applications;

Source	Parameter
MCU	ESP32-PICO-D4( 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	18 ± 2dB
Hardware resources	UART x 3; SPI x 2; I2C x 2; I2S x 1
	12 – bits ADC; 8 – bits DAC
	44 general GPIO
FLASH	internal 4MB(32M-bits) SPI FLASH
Interface	LoRa antenna (IPEX) x 1; Wi-Fi / BLE antenna (IPEX) x 1
Size	38.4 x 16.1mm
External device power control (Vext)	√
Low power design	deep sleep mode 10uA

Electrical characteristics	Condition	Minimum	Typical	Maximum
Power Supply	3.3V power supply(≥500mA)	2.7V	3.3V	3.5V
Power consumption(mA)	WIFI scan		115mA
	WIFI AP		135mA
	LoRa 10dB emission		100mA
	LoRa 12dB emission		105mA
	LoRa 15dB emission		120mA
	LoRa 20dB emission		145mA
Output	External device power control Vext (3.3V)			350mA

Package includes:

1 x Wireless ESP32 Module

Files support:

How to install Heltec ESP32 ARDUIN0 Develoment Environment:

http://www.heltec.cn/wifi_kit_install/

Wireless Shell Source Code:

Heltec ESP(ESP32 & ESP8266) framework (the basic of Heltec ESP series products ARDUIN0 running environment): https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series

Heltec ESP32 library (must work with Heltec ESP framework): https://github.com/HelTecAutomation/Heltec_ESP32

Heltec ESP32 LoRaWAN library (a standard LoRaWAN protocol library provide by Heltec Automation, need a license to active: http://www.heltec.cn/search/): https://github.com/HelTecAutomation/ESP32_LoRaWAN

Wireless Shell Pinout Diagram:

https://www.renhotecic.com/image/download/pdf/Wireless_Shell.pdf

Reference Hardware Design:

Wireless Shell Reference Hardware Design Schematic

Wireless Shell Schematic & PCB Package (Altium Designer 18.1.7):

Summary of Common Problems:

http://www.heltec.cn/summary-of-common-problems-in-wifi-kit-series-continuous-update/?lang=en

Heltec-Wireless-ESP32-Module-SX1276-LoRaWAN-Protocol-WiFi-BLE-ESP32-PICO-D4-1638101

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Tags: Wireless Module