【DFRobot motor driver】+Received DFRobot Arduino driver board

hujj

【DFRobot motor driver】+Received DFRobot Arduino driver board [Copy link]

The board for this review was obtained from the EEWorld event and provided by DFRobot. Product link: http://www.dfrobot.com.cn/goods-1317.html?tdsourcetag=s_pcqq_aioms

http://www.dfrobot.com.cn/goods-1317.html?tdsourcetag=s_pcqq_aioms

I received the driver board on the eve of National Day, packaged in a black paper box and an anti-static protective bag, and then there was the protagonist of this review: DFRobot Arduino four-way motor driver board.

Here's a close-up of the driver board:

At the same time, my smart car is also being produced in full swing. Below is the car with the driving wheels and driving board just installed, and the battery box has not yet been put in place.

In the next few days, we will work hard to complete the mechanical and electrical parts of the car's movement, and then use the MCU to control the car's simple movement.

This content is originally created by EEWORLD forum user hujj . If you want to reprint or use it for commercial purposes, you must obtain the author's consent and indicate the source

okhxyyo

Thanks for sharing, I look forward to seeing the car moving later.

powersstar

Dual TB6612FNG drivers, can play four-wheel drive

hujj

There is no plan for four-wheel drive at present. We are going to make a two-wheel drive smart car with a universal wheel first. We dismantled an old money counter to make the chassis and a power bank to make the power supply. Since we did not make an overall design in advance, it is a typical "three-side" project, which takes a lot of time to design, make and test. During the National Day holiday, we completed the mechanical part preliminarily. We will start testing the control board after improving it in the next few days. We are going to use an STM32G431 development board as the main control. We will first test the motor control part, then add ultrasonic ranging to complete automatic obstacle avoidance, and then gradually improve it.

This is the side view, and it is clearly a money counting machine:

This is a top view, and you can see the basic structure. There is a drive motor on the upper and lower right sides, driving two drive wheels through reduction gears. Then there is the protagonist of this evaluation - the four-way motor drive control board. Currently, two of them are used temporarily, and the other two are reserved for controlling the servos. The middle part is the power battery of the motor, which uses two sets of four-in-one battery boxes in series to output 7.2 volts. Currently, 6 18650 lithium batteries are installed temporarily. On the upper left side is the mains transformer, which is used to charge the lithium battery. The lower part is the development board and sensor evaluation board.

Here is the rear of the car:

The power supply of the control part is composed of two separate 18650 in parallel, and the voltage is boosted to 5 volts through the control circuit of the old power bank. This part is all installed on the side:

Today I did a preliminary power-on test and found that a switch is still needed to control the power supply. I will continue the modification tomorrow.