Key Takeaways
1. The ESP32-S3-RLCD-4.2 features a 4.2-inch reflective LCD screen that utilizes natural light for visibility, making it easy to read in bright sunlight.
2. It has a resolution of 300 x 400 pixels and can display customizable content like time and weather updates.
3. The device includes a built-in temperature and humidity sensor and two microphones for interaction with virtual assistants.
4. Connectivity options include WiFi and Bluetooth via the ESP32-S3 chip, along with GPIO pins for connecting external sensors.
5. The price for the smart display is €29, with an additional charge of €3 if a rechargeable battery is included.
The ESP32-S3-RLCD-4.2 is a innovative display that comes with a development board and a reflective LCD screen. This design utilizes natural light for visibility, as opposed to built-in LEDs. The company Waveshare claims that this feature enables the smart display to be easy to read in bright sunlight, much like e-ink displays, but without the slower response times often seen with those types of screens. Power can be drawn from a rechargeable 18650 battery.
Display Features and Functionality
The display measures 4.2 inches and has a resolution of 300 x 400 pixels. Users can utilize this device as a smart screen to display the current time, weather updates, or personalized content. The focus is on customization, as users will need to do some work to set up the device properly. It supports both ESP-IDF and the popular Arduino IDE. Additionally, it comes with a built-in temperature and humidity sensor, which can provide useful information for assessing comfort in indoor spaces. There are also two microphones included, allowing interaction with virtual assistants; however, users might consider adding a speaker, which may or may not be included depending on the seller.
Connectivity Options
With the built-in ESP32-S3 chip, the device supports wireless connections through WiFi and Bluetooth, meaning that displaying current weather information does not depend on a wired Ethernet setup. Regardless, users can connect external sensors and devices through GPIO pins. On AliExpress, Waveshare’s new smart home display is available for €29, plus shipping costs. If a battery is included, the price rises to €32.
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