This board is an excellent platform for developing with the ESP32 SoC, a single chip solution that combines Bluetooth and 2.4 GHz Wi-Fi capabilities. Different than our other development board, this one includes a 1.44″ TFT display that communicates with the ESP32 over SPI and has a resolution of 128×128 pixels and 16-bit full color capacity. It also carries a micro SD card adapter for applications requiring additional storage space, and a MPU9250 9-axis IMU (accelerometer + gyroscope + compass).Active-matrix LCDs depend on thin film transistors (TFTs). TFTs are tiny switching transistors and capacitors. They are arranged in a matrix on a glass substrate. To address a particular pixel, the proper row is switched on, and then a charge is sent down the correct column. If we carefully control the amount of voltage supplied to a liquid crystal, we can make it untwist only enough to allow some light through. Doing this in very exact, very small increments, LCDs can create a gray scale (usually 256 levels).
The MPU-9250 is a 9-axis Motion Tracking device that combines a 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer and a Digital Motion Processor.
- ESP32 development board w/ 1.4″ TFT display, SD card adapter, speaker, and 3 push buttons
- Chipset: ESPRESSIF-ESP32-PCIO-D4 240MHz Xtensa single-/dual-core 32-bit LX6 SoC
- Operating voltage: 3.3V
- USB to UART: CP2104
- Display: 1.44″ ST7735 LCD TFT display
- Display resolution: 128×128 pixels
- Display color: 16-bit full color
- Viewing angle: >170°