Wireless Stick Lite (Panda Board)

Description

Many users need a version without OLED display, because they want to use it directly in their IoT projects as the main controller and RF (LoRa, Wi-Fi, BLE) connection. Compare with Wireless Stick, “Wireless Stick Lite” has much better low power design (30uA in deep sleep). Removed the 0.49″ OLED, use ESP32-PICO MCU (it’s more friendly for low power design),

Overview

• CE Certificate;
• Microprocessor: ESP32-PICO (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;
• Support the Arduino development environment;
• (Exclusive) Supports the Arduino 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 good low-power design (sleep current ≤ 30uA), it is convenient for IoT application vendors to quickly verify solutions and deploy applications;

Tech spec

Docs&resource

• How to install Heltec ESP32 Arduino Development Environment
• http://www.heltec.cn/wifi_kit_install/
• Wireless Stick Source code
• Heltec ESP(ESP32 & ESP8266) framework (the basic of Heltec ESP series products Arduino 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
• Adafruit CircuitPython TinyLora library (Alan Peaty ported and shared this library): https://github.com/fantasticdonkey/uLoRa
• Wireless Stick Schematic Diagram
• The schematic diagram of Wireless Stick is restricted technical data, it will become downloadable after purchase, you can find it in your account page (Didn’t buy this product from our website or from a reseller? You can contact your provider or Email us):
• Heltec LoRa Node Porducts Difference Table (Product Selection Table)
• https://docs.heltec.cn/#/en/products/lora/lora_node/heltec_lora_node_list_eu
• Frequently Asked Questions
• https://heltec-automation-docs.readthedocs.io/en/latest/esp32/frequently_asked_questions.html
• AutoCAD & 3D Drawing
• AutoCAD 2017 version drawing:https://resource.heltec.cn/download/Wireless_Stick/WirelessStick(AutoCAD2004).dwg
• Solid Works2014 Version 3D Drawing:https://resource.heltec.cn/download/Wireless_Stick/WirelessStick_3D_drawing(SolidWorks2014).zip
• Interesting Applications by users
• single-channel LoRa gateway solution: https://github.com/things4u/ESP-1ch-Gateway-v5.0
• Micro Python library for Wireless Stick:https://github.com/robert-hh/pycom-micropython-sigfox/tree/heltec
• Graphical interface displays sensor data (Wireless Stick + Sensor + Grafana): https://www.rosietheredrobot.com/2019/07/hard-grapht.html

Test Info

                                              LoRa 915MHz RF Power Output

                                              LoRa 868MHz RF Power Output

                                      LoRa 470MHz RF Power Output

                                          LoRa 433MHz RF Power Output