Firmware: v 1.06H (home version) /v 1.06H (education version)
Input port: 4 input ports, sampling rate is 1000/s, output port: 4 memories: built-in ROM is 16MB, and RAM is 64MB. Maximum support for 32GB Micro SD card expansion buttons: six buttons, which can emit three colors. The active state is indicated by color. Screen: The resolution is 178* 128 pixels, which can better view the detailed graphics and sensor data.
Expansion: External devices such as external Wi-Fi and Bluetooth adapters can be connected through the standard USB on the left side of EV3 (EV3 has two USB devices, one mini USB for program download and one standard USB for expansion).
Communication: USB2.0 and Wi-Fi communication batteries can be used: six AA batteries can be used, and the original 2050 mAh lithium battery can also be used. Servo motor: it is not much different from the previous NXT servo motor. The main difference is the appearance, which makes it easier to connect.
Technical specifications: Speed feedback accuracy: 160- 170 rpm, running torque about 30 ounces * inches, stall torque about 60 ounces * inches.
Micro servo motor: Compared with ordinary servo motor, it has smaller torque, higher speed, faster response time and smaller volume. Technical specifications: the speed feedback accuracy is 240-250 RPM, the running torque is about 1 1 oz*in, and the stall torque is about 17 oz*in. Ultrasonic sensor: the accuracy is improved compared with the previous ultrasonic sensor. Technical specifications: the measuring distance is 3-250 cm, and the measuring accuracy is/kloc. But it seems that this can only be measured from one direction. Technical specification: Angle accuracy: 3 Maximum measuring angle: 440/s Sampling rate: 1KHz Color sensor: It can measure the reflection value of light (just like NXT photoelectric sensor) and detect color. Eight colors can be detected, one more brown than the previous color sensor.
Technical specification: sampling rate: 1KHz number of recognizable colors: eight touch sensors: there is not much change from the previous touch.
Infrared beacon: This is designed for the sensor of EV3 infrared seeker. Beacons emit infrared signals, which can be tracked by sensors. Beacons can also be used to send infrared signals to control EV3. Technical specifications: four independent channels, one indicator light, one switch and four control keys. If there is no action within the set time, the power supply will be automatically cut off. The working distance can reach two meters. Two AAA batteries are needed. Infrared seeker sensor: The infrared seeker sensor of digital EV3 detects signals sent by neighboring robots and Reid EV3 infrared beacon. Students can create remote-controlled robots, navigation obstacle training ground, and learn how to use infrared technology in TV remote control, monitoring system and even target acquisition equipment. Technical specifications: ranging can reach about 50-70cm, and the working distance can reach two meters from the beacon. It supports four signal channels to receive infrared remote control commands. Note: The educational package does not include infrared beacons and guiding heads. Need to buy separately. At the same time, the retail version has infrared beacon and guide head but no gyroscope, and one ultrasonic wave is missing.
According to my test, it can be used with NXT accessories and sensors.