Author: Maker

SainSmart 6-Axis Desktop Robotic Arm – Raspberry Pi web interface test

The robot arm is build with six servo motors which are controlled independent from each other. This is the first time I have designed a web interface to control a robotic arm and I used six sliders to control the position of each servo motor. With this solution it is possible to use the web interface from each device supporting HTML to remote control the robot arm. I tried to use the web interface with my old Samsung Galaxy S5 and as well with my desktop PC and it worked perfectly. The web interface designe looks like the screenshot...

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SainSmart 6-Axis Desktop Robotic Arm – Raspberry Pi software installation

The SainSmart robot arm is originally designed for the Arduino and for this tiny board all the holes are drilled into the base to screw it on the robotic arm. But it is also possible to control the six servo motors of the robotic arm with a Raspberry Pi SBC. I used a sheet of coardboard on top of the base to mount the Raspberry Pi 3 Model B and the PCA9685 servo controller on the base of the arm. Below I will explain which software you need to install on the Raspberry Pi. The PCA9685 servo controller is...

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SainSmart 6-Axis Desktop Robotic Arm – Raspberry Pi wiring

I decided to use a Raspberry Pi Computer to control the SainSmart desktop robotic arm. The robotic arm is initially designed for an Adruino but I thought it must be possible to use a Raspberry Pi computer to control the robotic arm as well. To control the six servo motors I have to use a servo controller. I decided to buy the PCA9685 servo controller I already used in other projects to control DC-motors and servo motors as well. The following pictures shows that I used a Raspberry Pi 3 Model B and a PCA9685 servo controller. Logic wiring...

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SainSmart 6-Axis Desktop Robotic Arm – Raspberry Pi

Finally I got the 6-axis robotic arm from SainSmart. The model is designed for an Arduino micro controller. But I will use a Raspberry Pi ZERO W to control the robotic arm. I am not sure how difficult it will be to write the software to control the robotic arm. But with a servo controller and the power of a Raspberry Pi ZERO W it should be no problem to write the python program and to control the 6-axis robotic arm. The following picture shows the robotic arm how it was delivered. The arm was completely assembled.   The...

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Stepper motor 28BYJ-48 – ULN2003A controller – Raspberry Pi and Python

This instruction describes how to control a stepper motor with a Raspberry Pi. The idea is to build a Raspberry Pi robot with four stepper motors. I bought a 28BYJ-48 stepper motor which could be controlled by a ULN2003A chip. The stepper motor and the controller board with the ULN2003A chip was sold together. That makes it very easy to hook up the stepper motor with the Raspberry Pi. You could not direct connect a stepper motor with the GPIO pins of the Raspberry Pi. If you do so you will damage your Raspberry Pi. The mAh the stepper...

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Roboter-Autos mit dem Raspberry Pi

Roboter Autos mit dem Raspberry Pi