Basic PWM Properties - Computer Action Team
Controlling a Digital Potentiometer Using SPI. In this example we will use a six channel digital potentiometer to control the brightness of six LEDs. The steps we will cover for implementing SPI communication can be modified for use with most other SPI devices. Arduino SPI LIbrary - Your reference for the SPI library
Suppressing Acoustic Noise in PWM Fan Speed Control Systems
The Adafruit 16-Channel 12-bit PWM/Servo Driver Shield will drive up to 16 servos over I2C with only 2 pins. The on-board PWM controller will drive all 16 channels simultaneously with no additional Arduino processing overhead. What's more, you can stack up to 62 of them to control up to 992 servos - …
Arduino Powered Smart Fan Controller Barnesian
A question came up on IRC regarding how to PWM a 3-pin PC fan with an Arduino using analogWrite(). Controlling the fan was seemingly straightforward. The problem was that the hall effect sensor, or TACH signal, was incredibly noisy. The noise made it impossible to measure the fan’s rotation.
Arduino PWM control MOSFET - Stack Exchange
Arduino 4-channel automatic fan controller with programmable RGB LED strip I received an new Antec 902 case with tons of air flow but the unit came with these intensely bright blue LED 2-wire fans. 25 Responses to Automatic 4-channel pwm PC fan controller. cichlidman1 says: June 1, 2013 at 7:19 am control 20 fans from one transistor
Arduino and L9110 fan module example - Arduino Learning
Arduino 2 Channel Relay: This instructable is for connecting your Arduino to a 2 Channel relay module and using your sketch to control the switches. I bought the 2 Relay Module on eBay (for $9. 50) to drive a couple of 240V parts (a vacuum cleaner and a rotary engraving too. . .
ns - Controlling ceiling fan speed using Arduino
Use an Arduino and Relays to Control AC Lights and Appliances . By Christopher J. Alden; Time Required: 3-8 Hours; Difficulty: And any electrical device with a plug on the end — be it a light, a fan, or a blender — can be plugged and unplugged, as easily as you would with a simple power strip. Your Arduino can now control high
How to Use Relays to Control High-Voltage Circuits with an
Arduino Control Relay Schematic. How does the circuit works. When the button is pressed the Arduino board will put pin 2 in HIGH state, meaning 5V on pin 2. This voltage is used to drive the transistor that will switch ON the relay and the load (in our case the fan) will be powered from the main power supply.
Use Arduino and Relays to Control AC Lights and Appliances
/21/2011A quick video showing the single channel fan controller I made with an arduino. When I get the code simplified I will make this a 4-channel device and use it on my PC to control the fans for the