1.Introduction:
  HU-046 is a HC-SR04 Ultrasonic Automatic Obstacle Avoidance Intelligent Car DIY Kit. The car automatically advances, and when the sensor senses an obstacle in front, it automatically turns left or right, or even directly reverses to avoid the obstacle and continue moving forward. The sensing distance of ultrasound can be reset by pressing the button.

  It’s a DIY kit which comes with various components. User need to install each component by hand. It not only can exercise and improve soldering skills, but also increase the interest in electronic technology. Great for electronics hobbyists, beginners, school and home education.It is a very interesting DIY electronic product which enables users to understand the circuit more clearly and learn soldering skills.

2.Feature:
1>.Ultrasonic automatic sensing distance
2>.Programmable induction detection distance
3>.Multiple exercise modes:Forward, backward, left turn, right turn, rotate in place
4>.High simulation obstacle avoidance robot operation
5>.DIY Electronic Kits for Soldering Skill Practice and Learning

3.Parameter:
1>.Product Name:HC-SR04 Ultrasonic Obstacle Avoidance Car DIY Kit
2>.Work Voltage:DC 6V
3>.Power Type: AA*4 Battery(NOT Include)
4>.Work Current:<300mA
5>.Sense Distance:<5m
6>.Obstacle Avoidance Set Range:0~2.55m(0-0.5m is the best and default is 0-0.2m)
7>.Display Type: 4Bit Red Display Screen
8>.Work Temperature:-20℃~85℃
9>.Work Humidity:5%~85%RH
10>.Size(Installed):135*85*50mm

4.Note:
1>.Disable obstacle avoidance function if the parameter is set to 0.
2>.The car does not move straight forward, even if there are no obstacles. Because the installation of the motor or wheel has a certain angle.
3>.The motor should be as close to the edge of the PCB as possible to avoid affecting the installation of the wheels and causing them to get stuck by the PCB.

5. Circuit and installation manaul, please download via below:

Two Functions about the Smart Car DIY Kit