The PCA9685 is a 16-channel I2C-bus controlled LED controller optimized for Red/Green/Blue/Amber (RGBA) color backlighting applications. Each LED output has individual 12-bit resolution (4096 steps) PWM controller with a fixed frequency. The controller operates at a programmable frequency from a typical 24 Hz to 1526 Hz with a duty cycle that is adjustable from 0% to 100% so the LED can be set to output a specific brightness. All outputs are set to the same PWM frequency. With the PCA9685 as the master chip, the 16-channel 12-bit PWM Servo Driver only needs 2 pins to control 16 servos, thus greatly reducing the occupant I/Os. Moreover, it can be connected to 62 driver boards at most in a cascade way, which means it will be able to control 992 servos in total.
Features:
Contains an I2C-controlled PWM driver with a built-in clock. It means, unlike the TLC5940 family, you do not need to continuously send it signals tying up your microcontroller; it's completely free running!
5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs, which is good when you want to control white or blue LEDs with a 3.4V+ forward voltage
Supports using only two pins to control 16 free-running PWM outputs – you can even chain up 62 breakouts to control up to 992 PWM outputs.
3 pin connectors in 4 groups, so you can plug in 16 servos at one time (Servo plugs are slightly wider than 0.1" so you can only stack 4 adjacent ones on 0.1"-hole female headers.
12-bit resolution for each output - for servos, that means about 4us resolution at an update rate of 60Hz.
Premium build, works fine, but check ssd model support
Waveshare poe hat is premium to touch. Product works, haven't tested with a poe supply. However Check your ssd model if its supported by sending mail to waveshare support team. Some WD ssd is not supported. Rest Crucial I tried it works fine.
Ssd list (updating, but not completed)
https://www.waveshare.com/argon-one-v5-dual-m.2-case.htm
Waveshare tech support team
https://www.waveshare.com/contact_us
Definitely product is cheap in price compared to other products. But most valued for price. It's worth it.
Btw in pics below the blue wd ssd it was not supported.
Delivery was fast. Booked in pre-sale item and packaging was neat secure. Gpio pins wrapped with foam product was wrapped multi layer with foam.
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Moreover, it can be connected to 62 driver boards at most in a cascade way, which means it will be able to control 992 servos in total.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"mw-headline\" id=\"Feature\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContains an I2C-controlled PWM driver with a built-in clock. It means, unlike the TLC5940 family, you do not need to continuously send it signals tying up your microcontroller; it's completely free running!\u003c\/li\u003e\n\u003cli\u003e5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs, which is good when you want to control white or blue LEDs with a 3.4V+ forward voltage\u003c\/li\u003e\n\u003cli\u003eSupports using only two pins to control 16 free-running PWM outputs – you can even chain up 62 breakouts to control up to 992 PWM outputs.\u003c\/li\u003e\n\u003cli\u003e3 pin connectors in 4 groups, so you can plug in 16 servos at one time (Servo plugs are slightly wider than 0.1\" so you can only stack 4 adjacent ones on 0.1\"-hole female headers.\u003c\/li\u003e\n\u003cli\u003e12-bit resolution for each output - for servos, that means about 4us resolution at an update rate of 60Hz.\u003c\/li\u003e\n\u003cli\u003eSize: 62 x 26 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/16-Channel-12-bit-PWMServo-Driver-I2C-interface-6-1024x786_480x480.png?v=1593193452\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch5\u003eResources\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/DATASHEET\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC4002\"\u003eDatasheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC4002\"\u003eLibrary\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/thinkrobotics\/LIBRARIES\/tree\/master\/ELECTRONIC_COMPONENTS\/ELC4002\"\u003eSample Code\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eTutorial\u003c\/h5\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/y8X9X10Tn1k\" frameborder=\"0\" allow=\"accelerometer; 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Each LED output has individual 12-bit resolution (4096 steps) PWM controller with a fixed frequency. The controller operates at a programmable frequency from a typical 24 Hz to 1526 Hz with a duty cycle that is adjustable from 0% to 100% so the LED can be set to output a specific brightness. All outputs are set to the same PWM frequency.\u003cbr\u003eWith the PCA9685 as the master chip, the 16-channel 12-bit PWM Servo Driver only needs 2 pins to control 16 servos, thus greatly reducing the occupant I\/Os. Moreover, it can be connected to 62 driver boards at most in a cascade way, which means it will be able to control 992 servos in total.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan class=\"mw-headline\" id=\"Feature\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContains an I2C-controlled PWM driver with a built-in clock. 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