{"product_id":"pca9685-16-channel-pwm-servo-driver-module-i-c-robot-interface","title":"PCA9685 16‑Channel PWM Servo Driver Module – I²C Robot Interface","description":"\u003ch1\u003ePCA9685 16‑Channel PWM Servo Driver Module – I²C Robot Interface\u003c\/h1\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"product-description\"\u003eProduct Description\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe PCA9685 16‑Channel PWM Servo Driver Module lets you control up to 16 independent PWM channels using just two I²C pins from your microcontroller. It’s perfect when you run out of hardware PWM outputs but still want to drive multiple servos, LEDs, or other PWM‑controlled devices in your robot or automation setup.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eBecause the PCA9685 includes its own on‑board clock, it generates PWM signals autonomously once configured, freeing your main MCU from the burden of continuous timing updates. You can also chain multiple modules on the same I²C bus using different addresses, enabling very large servo or LED arrays for complex robots, light shows, or multi‑axis control systems.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"compatibility\"\u003eCompatibility\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003cul class=\"marker:text-quiet list-disc pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eWorks with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eArduino\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eboards (Uno, Nano, Mega, etc.) via I²C (SDA\/SCL).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eFully compatible with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eESP32\u003c\/strong\u003e, ESP32‑S3, and ESP32‑C6 boards at 3.3 V logic; the PCA9685 inputs are typically tolerant up to around 5–5.5 V.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eCompatible with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRaspberry Pi\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand other Linux SBCs using the I²C interface (perfect for robotics projects).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eSupports most 3.3 V or 5 V microcontrollers that provide I²C; only two pins (SDA, SCL) are needed to control all 16 PWM outputs.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"key-features\"\u003eKey Features\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003cul class=\"marker:text-quiet list-disc pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003e16‑channel, 12‑bit PWM driver\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– provides high‑resolution pulse control for servos and LEDs.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eI²C‑controlled\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– only two data lines needed to manage all outputs, leaving more pins free on your MCU.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eBuilt‑in clock\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– runs PWM independently once configured; no continuous updates required from the microcontroller.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eAdjustable PWM frequency\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eup to around 1.6 kHz; 50–60 Hz is typical for hobby servos.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eChainable design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– 6 address pins allow up to 62 modules on one I²C bus (up to 992 total channels for large servo\/LED arrays).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003e5 V‑compliant outputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– can be driven from a 3.3 V microcontroller while safely switching up to around 5–6 V on the servo\/LED power rail (V+).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eDedicated power input\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor servos (V+ terminal block or header), so high‑current loads don’t stress your microcontroller’s regulator.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eSuitable as both a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eservo controller\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emulti‑channel LED dimmer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"technical-specs-typical\"\u003eTechnical Specs (Typical)\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eValues may vary slightly between manufacturers; check your specific module:\u003c\/p\u003e\n\u003cul class=\"marker:text-quiet list-disc pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eController IC:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePCA9685\u003c\/strong\u003e, 16‑channel 12‑bit PWM driver.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eInterface:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eI²C\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Fast‑mode Plus capable, up to around 1 MHz in many designs).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"inline-flex\"\u003e\u003ca rel=\"noopener\" class=\"inline-flex max-w-full min-w-0\" href=\"https:\/\/wiki.seeedstudio.com\/Grove-16-Channel_PWM_Driver-PCA9685\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eMCU logic voltage: typically\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3.3 V or 5 V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecompatible for SDA\/SCL inputs.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003ePWM supply (V+): around\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2.3–5.5 V\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etypical for servos\/LEDs on most breakout designs.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"inline-flex\"\u003e\u003ca rel=\"noopener\" class=\"inline-flex max-w-full min-w-0\" href=\"https:\/\/wiki.seeedstudio.com\/Grove-16-Channel_PWM_Driver-PCA9685\/\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003ePWM frequency: adjustable up to ~1.6 kHz.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eResolution:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e12‑bit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(4096 steps) per channel.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eOutputs: 16 channels, each supporting around\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e25 mA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(for LEDs; servos draw power from V+, not through the PCA chip itself).\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eAddress range: 0x40–0x7F using address pins to select unique addresses when chaining modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"ideal-uses\"\u003eIdeal Uses\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003cul class=\"marker:text-quiet list-disc pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eRobotics\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– control multiple servo joints in robot arms, quadrupeds, hexapods, and pan‑tilt rigs.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eAnimatronics\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– coordinated servo movement for props, displays, and interactive installations.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eLED control\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– multi‑channel LED dimming, RGB\/RGBA control, and light shows.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eHome automation and IoT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– driving servo‑based valves, vents, or mechanical indicators from a single controller.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"inline-flex\"\u003e\u003ca rel=\"noopener\" class=\"inline-flex max-w-full min-w-0\" href=\"https:\/\/circuitdigest.com\/microcontroller-projects\/pca9685-multiple-servo-control-using-arduino\" target=\"_blank\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e\u003cstrong\u003eEducational projects\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– demonstrating I²C, PWM, and multi‑axis motion control in microcontroller courses.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"whats-included\"\u003eWhat’s Included\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003cul class=\"marker:text-quiet list-disc pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e1 × PCA9685 16‑Channel PWM Servo Driver Module\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003e(Variants may also include) terminal block for V+ power, pin headers for servo outputs and I²C connection, depending on the specific supplier design.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003ch2 class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"safety-note\"\u003eSafety Note\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"has-inline-images my-2 first:mt-0 [\u0026amp;:has([data-inline-type=image])+\u0026amp;:has([data-inline-type=image])_[data-inline-type=image]]:hidden [\u0026amp;:has(table)_[data-inline-type=image]]:hidden [\u0026amp;_h1:first-of-type]:mt-8 [\u0026amp;_h2:first-of-type]:mt-6\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"prose dark:prose-invert inline leading-relaxed break-words min-w-0 [word-break:break-word] [\u0026amp;_\u0026gt;*:first-child]:mt-0 [\u0026amp;_\u0026gt;*:last-child]:mb-0\"\u003e\n\u003cul class=\"marker:text-quiet list-disc pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe PCA9685 module\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edoes not regulate servo power voltage\u003c\/strong\u003e; always supply a suitable servo voltage (commonly 5–6 V) on V+ and ensure it matches your servos’ specifications.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eServos can draw significant current; use an external power supply sized appropriately, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ealways share a common ground\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebetween the servo supply and your microcontroller.\u003cspan class=\"citation-nbsp\"\u003e\u003c\/span\u003e\u003cspan class=\"citation inline\"\u003e\u003cspan class=\"group\/trigger inline-flex min-w-0\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eAvoid powering servos directly from a microcontroller’s USB or on‑board regulator, as this can cause resets or damage due to over‑current.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eDouble‑check I²C wiring (SDA\/SCL) and module orientation before powering the system to prevent short circuits or bus conflicts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"sugar","offers":[{"title":"Default Title","offer_id":44922345324679,"sku":null,"price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/7763\/5719\/files\/PCA9685top.jpg?v=1781876608","url":"https:\/\/sugarstore.dev\/products\/pca9685-16-channel-pwm-servo-driver-module-i-c-robot-interface","provider":"sugar","version":"1.0","type":"link"}