Pumpkin with smart LED strip, PIR motion detector and servo motor to scare even more people. It’s wireless and easy to control with Node-RED. Story So what do I expect from it? It must be interactive and react to motion, change colours and effects using programmable LEDs and feature something special – an unexpected pumpkin […]
Scary IoT Pumpkin with Motion-Triggered Servo Read More »
I have experimented with GPIO on the Raspberry Pi, just turning an LED on and off here. But since then Ben Croston has improved the RPi GPIO Python library to do most of the work in C and I can confirm that it is a lot faster. Driving servo motors requires precise timing, so I
Raspberry Pi GPIO driving Servo Read More »
Bring in some muscle to your output pins with 8 mighty Darlingtons! This driver chip contains 8 drivers that can sink 500mA from a selectable 5V or DC input voltage supply and has kickback diodes included inside for driving coils. This will let your little microcontroller or microcomputer power solenoids, DC motors (in one direction)
ULN2803 8-channel RC Servo Port for Raspberry Pi Read More »
Assembly The servo motors have three pins, two for power: red(+) and black (-), and one for control. Because the servo motor draws too much energy, we need to use the batteries to power the servo (the Raspberry Pi doesn’t have so much power. if you try to use the 5V power of the raspberry
Controlling a Servo Motor Read More »
After my dad and I got an LED to dim using Pulse Width Modulation on my Raspberry Pi, we decided to try to spin a servo motor. We had a bunch of old servo motors on my robotics team at school so I used one of those, but I didn’t have any information on the
Servo Motor with Raspberry Pi and PWM Read More »
Controlling a servo using raspberry pi PWM generator is not a trivial task since PWM period cannot be defined by the user. To overcome this issue we will use wiringPi C library in order to create a software generated pulse. Of course the generated pulse will not be as accurate as a hardware generated pulse
Controlling a servo using Raspberry Pi and WiringPi software based PWM Read More »
