LR35

The Heltec LR35 Ring is an innovative Wi-Fi enabled wearable development board designed for makers, hobbyists, and developers looking to create unique IoT projects. This circular board, reminiscent of a ring, is meticulously crafted by Heltec Electronics, a leading provider of IoT solutions.

At the heart of the LR35 Ring lies the ESP32-S2 microcontroller, a powerful and energy-efficient chipset by Espressif Systems. This chipset boasts a dual-mode Bluetooth and Wi-Fi connectivity, allowing the ring to seamlessly communicate with other devices. In addition, the ESP32-S2 comes equipped with an integrated 2.4-inch OLED display, offering excellent visual capabilities for various applications.

The Heltec LR35 Ring features a total of 24 available I/O pins, including 12 analog input pins and 12 digital output pins. These pins can be used to connect various sensors, actuators, or other components, expanding the functionality of the ring for various projects. Furthermore, the board includes a built-in microphone, a hall effect sensor, and an RGB LED, adding versatility to your projects.

The ring's design is both aesthetically pleasing and practical. It is made of a flexible PCB material that can be bent and shaped to fit comfortably on different finger sizes. The ring also comes with a detachable antenna, ensuring stable Wi-Fi connectivity.

To power the Heltec LR35 Ring, a rechargeable 3.7V LiPo battery is included. This battery can be charged using the micro-USB port located on the board. The ring also comes with a battery charging circuit, ensuring safe and efficient charging.

The LR35 Ring is an open-source platform, meaning you have the freedom to develop and customize your projects using various programming languages, including Arduino, MicroPython, and C . The board also comes with a comprehensive library, providing an extensive range of functions for easy development.

In summary, the Heltec LR35 Ring is a versatile and powerful IoT development board in a wearable form factor. With its ESP32-S2 microcontroller, Wi-Fi and Bluetooth connectivity, OLED display, and numerous I/O pins, this ring offers endless possibilities for makers and developers to create unique and innovative projects.

The Heltec LR35 Ring is a WiFi-enabled development board based on the ESP32-S2 microcontroller. It comes in a ring form factor, making it ideal for wearable projects. Here are some pros and cons of buying a Heltec LR35 Ring:

1. Compact and wearable: The ring form factor makes it an excellent choice for wearable projects.

2. WiFi connectivity: The ESP32-S2 microcontroller provides built-in WiFi capabilities, allowing you to connect to the internet and other WiFi devices.

3. Easy to use: Heltec provides an Arduino library for the LR35 Ring, making it easy to use for Arduino users.

4. Affordable: The Heltec LR35 Ring is relatively affordable compared to other WiFi-enabled development boards.

1. Limited I/O pins: The Heltec LR35 Ring has a limited number of I/O pins, which may not be sufficient for complex projects.

2. No Bluetooth capabilities: Unlike some other development boards, the Heltec LR35 Ring does not have built-in Bluetooth capabilities.

3. Limited documentation: While Heltec provides an Arduino library, the documentation may not be comprehensive enough for advanced users.

The Heltec LR35 Ring is a great choice for wearable projects that require WiFi connectivity. Its compact size, ease of use, and affordability make it an attractive option for makers and hobbyists. However, its limited I/O pins and lack of Bluetooth capabilities may not make it suitable for more complex projects.

If you're looking for a WiFi-enabled development board for wearable projects, the Heltec LR35 Ring is an excellent choice. However, if you require more I/O pins or Bluetooth capabilities, you may want to consider other development boards such as the ESP32 or the Arduino Nano 33 BLE Sense.

Details:

Made by the trusted brand Heltec, this product is a reliable choice for businesses in need of sturdy and components. The Heltec LR35 l ring is a durable and high-quality accessory designed specifically for heavy equipment. Whether used for construction, farming, or any other industrial application, the Heltec LR35 l ring ensures long-lasting performance and efficiency.

specifications heavymanualbooks:

• brand: Heltec
• mpn: Lr35
• model: Heltec Lr35
• part type: Ring

shipping heavymanualbooks:

• type: calculated
• class: standard, economy
• carrier: usps, ups
• transit: 3-8 days
• service: usps ground advantage, ups ground saver

seller heavymanualbooks:

• # reviews: 24
• city: kemmerer, wyoming
• rating: 100.0%

offer heavymanualbooks:

• options: ship-to-home
• in stock #: 1
• sold #: 11
• started: september 10, 2025
• price: $20.00
• item condition: Like New
• availability: in stock

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• time: 30 days
• policy: returns accepted
• paid by: seller
• method: money back

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• category: Business & Industrial > Equipment, Attachments > Parts Accessories > Heavy Manuals Books

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