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RPi TFT LCD Features The TFT LCD is a kind of liquid crystal LCD that is connected to each pixel using a transistor. And in addition to low current consumption it has backlight. It is available in a variety of dimensions and resolutions and features high-quality and high-resolution. This module uses SPI protocol for communication, which connects the display and touch screen to Raspberry Pi simultaneously. You can download the datasheet of this module here.[wpdm_packag...

SR04 Ultrasonic Sensor Features The SRF04 ultrasonic distance sensor can be used to measure distance with high accuracy. The basic working principle of this sensor is that it produces a high-level signal and sends it to the obstacle. Then the receiver detects the returned wave. The time between the transmission and reception of the signal allows us to calculate the distance to an object. Note When the Trig pin is set High, the sensor generates and sends ultrasonic sound. At that moment the Ech...