Description
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.
ProductType?MCUFLASHBatteryBattery DetectVext?Low Power?DisplayWiFi LoRa 32Dev-BoardESP324MBLithium?xxxOLED (128x64)WiFi LoRa 32(V2)
(Product ID: 1639291)Dev-BoardESP328MBLithium???800uAOLED (128x64)Wireless Stick
(Product ID: 1639290)Dev-BoardESP328MBLithium???800uAOLED (64x32)Wireless Stick Lite
(Product ID: 1638098)Dev-BoardESP32-PICO4MBLithium???35uAxWireless Shell
(This item)ModuleESP32-PICO4MB?x10uAxLoRa Kit 151
(Product ID: 1639289)Dev-BoardSTM32L151CBU6128kBLithiumxx7uAxLoRa Node 151
(Product ID: 1638100)Dev-BoardSTM32L151CCU6256kB1/2 AA Lithium chlorine sulfite battery??1.8uAxTurtle Board
(Product ID: 1638099)Dev-BoardSTM32L432KC256kBAAA x 2??5uAx
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: -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;
SourceParameterMCUESP32-PICO-D4( 240MHz Tensilica LX6 dual-core + 1 ULP, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth)LoRa chipSX1276LoRa bandsEU_433, CN_470_510, EU_863_870, US_902_928 four bands optionalLoRa maximum output power18 ± 2dBHardware resourcesUART x 3; SPI x 2; I2C x 2; I2S x 112 bits ADC; 8 bits DAC44 general GPIOFLASHinternal 4MB(32M-bits) SPI FLASHInterfaceLoRa antenna (IPEX) x 1; Wi-Fi / BLE antenna (IPEX) x 1Size38.4 x 16.1mmExternal device power control (Vext)?Low power designdeep sleep mode 10uA
Electrical characteristicsConditionMinimumTypicalMaximumPower Supply3.3V power supply(?500mA)2.7V3.3V3.5VPower consumption(mA)WIFI scan 115mA WIFI AP 135mA LoRa 10dB emission 100mA LoRa 12dB emission 105mA LoRa 15dB emission 120mA LoRa 20dB emission 145mA OutputExternal 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_seriesHeltec ESP32 library (must work with Heltec ESP framework): https://github.com/HelTecAutomation/Heltec_ESP32Heltec 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://github.com/Heltec-Aaron-Lee/WiFi_Kit_series/blob/master/PinoutDiagram/Wireless_Shell.pdf AutoCAD & 3D Drawing:AutoCAD 2017 version drawing: https://docs.heltec.cn/download/Wireless_Shell.dwg Reference Hardware Design:Wireless Shell Reference Hardware Design Schematic: https://docs.heltec.cn/download/wireless_shell_reference_hardware_design.pdfWireless Shell Schematic & PCB Package (Altium Designer 18.1.7): https://docs.heltec.cn/download/wireless_shell_packages.zip Summary of Common Problems:http://www.heltec.cn/summary-of-common-problems-in-wifi-kit-series-continuous-update/?lang=en
