최근에 헥사포드 등 일부 90 계열의 저렴한 서보가 많이 사용되는 로봇들을 보다가...
혹시나 싶어서 찾아 보니 16채널용 2$짜리 저렴한 보드가 하나 보이네요.
ㅎㅎㅎ.. 필요한 건 2배 정도 채널이 더 많은 보드지만... 가격은 10배가량 비싸서....
당장은 필요 없지만 나중에 필요한 경우를 대비해서 16채널짜리라도 기록해 놓을 겸 블로깅 해 놓습니다.
LED 외에는 모터 쪽은 다양하게 사용해 볼 일이 없어서....
자세한 내용은 모르니.. 필요하면 상세 설명과 구글링 하시기 바랍니다.^^
$2.09 - http://s.click.aliexpress.com/e/MF2buJe
Free Shipping 16 Channel Robot Servo Control Board for Arduino
This is an i2c-controlled PWM drive and a built-in clock.
This means that it will and TLC5940 series are very different.
You do not need to constantly send signals occupy your microcontroller
It is 5V compatible, which means you can also use 3.3V MCU control and safely drive to 6V output
(when you want to control white or blue LEDs with 3.4+ positive voltage is also possible)
Address select pins so you can put 62 driver board hanging on a single i2c bus, a total of 992 PWM outputs.
That would be a very large resource.
About 1.6Khz Adjustable Frequency PWM output
Ready to output 12 resolution of the stepper motor, which means that at 60Hz refresh rate can reach 4us resolution
Configurable output push-pull output or open
Output Enable pin to quickly disable all output
Central PCA9685 chips are wrapped in small plates
Power input terminals
Green power indicator
Facilitate you in four groups in a 3-pin connector insert 16 servo motors (servo plug slightly wider than 0.1 ", so you can put four pairs of 0.1" connector)
Reverse polarity protected wiring board input
Cascade Design
V + line to place a large capacitor (in some cases you will need)
All PWM output lines have put a 220 ohm series resistor to protect them, and can easily drive the LED.
