{"product_id":"pca9685-16ch-12bit-pwm-servo-driver-i2c-arduino-raspberry-pi-led","title":"PCA9685 16-Channel 12-Bit PWM Servo Driver — I²C, Arduino, Raspberry Pi, LED Control","description":"\u003ch2\u003ePCA9685 — 16-Channel 12-Bit PWM Servo Driver (I²C)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003ePCA9685\u003c\/strong\u003e is a dedicated 16-channel, 12-bit PWM controller with I²C interface, designed to drive up to \u003cstrong\u003e16 servo motors or LEDs simultaneously\u003c\/strong\u003e from a single microcontroller I²C bus. Chainable up to 62 boards for 992 channels total. Compatible with Arduino, Raspberry Pi, ESP32, and STM32.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePWM Channels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePWM Resolution\u003c\/td\u003e\n\u003ctd\u003e12-bit (4096 steps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eI²C (address: 0x40–0x7F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePWM Frequency\u003c\/td\u003e\n\u003ctd\u003e24Hz – 1526Hz (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Voltage\u003c\/td\u003e\n\u003ctd\u003e2.3V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eServo Power Input\u003c\/td\u003e\n\u003ctd\u003e5V – 6V (V+ terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current per Channel\u003c\/td\u003e\n\u003ctd\u003e25mA (LED), external for servos\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChainable Boards\u003c\/td\u003e\n\u003ctd\u003eUp to 62 (992 channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose PCA9685?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eHardware PWM\u003c\/strong\u003e — no CPU load, precise timing independent of main loop\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e12-bit resolution\u003c\/strong\u003e — 4096 steps for smooth servo positioning\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eI²C chainable\u003c\/strong\u003e — expand to 62 boards with address jumpers\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWide temperature range\u003c\/strong\u003e — -40°C to +85°C for outdoor robotics\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAdafruit library compatible\u003c\/strong\u003e — plug-and-play with Arduino IDE\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With \/ Works With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino\u003c\/strong\u003e UNO R3, Nano, Mega 2560 (I²C: A4\/A5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi\u003c\/strong\u003e 3B+\/4B\/5 (I²C: GPIO2\/GPIO3)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32\u003c\/strong\u003e \/ ESP8266 (I²C: GPIO21\/GPIO22)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTM32\u003c\/strong\u003e Nucleo \/ Blue Pill (I²C1\/I²C2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdafruit PCA9685 Library\u003c\/strong\u003e (Arduino IDE) \/ \u003cstrong\u003eAdafruit CircuitPython\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStandard RC servos: SG90, MG90S, MG995, MG996R, DS3218\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobot Arms\u003c\/strong\u003e — 6-DOF arm with 6 servos controlled from single I²C bus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHexapod Robots\u003c\/strong\u003e — 18-servo hexapod using 2 chained PCA9685 boards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePan-Tilt Camera Mounts\u003c\/strong\u003e — 2-axis gimbal with SG90 servos\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16-Channel LED Dimmer\u003c\/strong\u003e — RGB LED strip PWM control, 12-bit smooth dimming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRC Vehicle Steering\u003c\/strong\u003e — precise servo angle control for autonomous vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can PCA9685 power servos directly from the board?\u003c\/strong\u003e\u003cbr\u003eA: No. Servo power must be supplied to the V+ terminal separately (5–6V, sufficient current for all servos). The board's 3.3V\/5V pins only power the IC logic.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I set the I²C address?\u003c\/strong\u003e\u003cbr\u003eA: Solder the A0–A5 address jumpers on the board. Default address is 0x40. Each jumper adds a binary value, allowing addresses 0x40–0x7F (64 unique addresses).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What library should I use with Arduino?\u003c\/strong\u003e\u003cbr\u003eA: Use the official \u003cstrong\u003eAdafruit PWM Servo Driver Library\u003c\/strong\u003e (available in Arduino Library Manager). Install and run the servo example to verify operation.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1× PCA9685 16-Channel 12-Bit PWM Servo Driver Board\u003c\/li\u003e\n\u003cli\u003ePin headers (unsoldered)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991477932267,"sku":"\u003cnone\u003e","price":15.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/16-channel-12bit-pwm-servo-driver-pca9685-i2c-module.webp?v=1761628814","url":"https:\/\/keszoox.com\/products\/pca9685-16ch-12bit-pwm-servo-driver-i2c-arduino-raspberry-pi-led","provider":"Keszoox","version":"1.0","type":"link"}