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What's New?
PHcr- 20Cm Female to Female 40 Jumper Set Connecting Wire
PHcr- 20Cm Female to Female 40 Jumper Set Connecting Wire
22.00L.E.
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  Product info
 
16 Channel 12-bit PWM Servo Motor Driver I2C Module for Arduino
[KIT.PWM.PCA9685]
125.00L.E.

Description:
 
This module is a breakout board for the NXP PCA9685 16 channel PWM controller. It features 16 fully programmable PWM outputs with a 12bit resolution giving a total of 4096 programmable steps with a duty cycle being adjustable from 0% to 100%.

Additionally, the output frequency of all 16 channels can be programmed from 24Hz to 1526Hz. Intended for controlling the brightness of multiple LEDs, the programmability of its PWM outputs means that it can also be configured for producing PWM signals compatible with driving standard servos. In fact, this module has been designed with this purpose in mind with 16 sets of headers that allow for any servo with a standard header to be directly plugged into the module. A screw terminal block provides a means of powering the attached servos from an external 5V PSU and so the number of servos you can drive from your microcontroller and so is not limited by the microcontrollers own power supply. For Arduino users, with this module and our exclusive Arduino library (HCPCA9685) you can directly control up to 16 servos from your Arduino with only a few commands.

The module also includes an I2C header with 10K pullup resistors and so only requires two data pins (SDA & SCL) to control the module. Solderable pads on the module provide a means of changing the default I2C address (0x40) to one of 62 options, meaning more than one module can be connected to the same I2C bus. 

A wide operating range of 2.3V to 5.5V allows the module to be powered from a range of power supplies and when powered from a 3.3V supply is safe to interface to a Raspberry Pi or 3.3V or any other non 5V tolerant microcontrollers. 

PLEASE NOTE: The PWM output pins on this module are capable of sinking a maximum of 25mA or sourcing a maximum of 10mA. Do not attempt to drive high current devices such as motors, bulbs etc, directly from these pins as you will risk damaging the module. For servos, power is provided externally via the terminal header and only a small amount of current is drawn by the servo from each PWM pin.

Features:

  • Operating power supply voltage range of 2.3 V to 5.5 V with 5.5 V tolerant inputs
  • 16 LED drivers. Each output programmable at: Off / On / Off
  • 1 MHz Fast-mode Plus compatible I2C-bus interface with 30 mA high drive capability on SDA output for driving high capacitive buses
  • 4096-step (12-bit) linear programmable PWM output varying from fully off (default) to maximum brightness
  • Output frequency (all PWM output) typically varies from 24 Hz to 1526 Hz
  • 16 totem pole outputs (sink 25 mA and source 10 mA at 5 V) with software programmable open-drain LED outputs selection (default at totem pole). No input function.
  • 4 software programmable I2C-bus addresses (one LED All Call address and three LED Sub Call addresses) allow groups of devices to be addressed at the same time in any combination (for example, one register used for ‘All Call’ so that all the PCA9685s on the I2C-bus can be addressed at the same time and the second register used for three different addresses so that 1⁄3 of all devices on the bus can be addressed at the same time in a group). Software enable and disable for these I2C-bus address.
  • 25 MHz typical internal oscillator requires no external components
  • External 50 MHz (max.) clock input
  • Internal power-on reset
  • Noise filter on SDA/SCL inputs
  • Edge rate control on outputs
  • No output glitches on power-up
  • Supports hot insertion
  • Low standby current

For more information & Data Sheet of this product, please click here.
This product was added to our catalog on Monday 28 August, 2017.
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