{"product_id":"pca9685-16-channel-pwm-driver-i2c-control","title":"PCA9685 16-Channel PWM Driver | I2C Control","description":"\u003ch1\u003ePCA9685 16-Channel 12-bit PWM Driver Module\u003c\/h1\u003e\u003cp\u003eThe PCA9685 is an I2C-controlled PWM driver capable of generating 16 channels of 12-bit resolution signals. It is commonly used to drive servos, dim LEDs, or control other devices requiring precise timing. Its ability to offload PWM generation from a microcontroller makes it ideal for complex multi-channel projects.\u003c\/p\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e12-bit (4096 steps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e24 Hz to 1526 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eI2C (up to 1 MHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V – 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003eUp to 6V (V+ terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRobotic arm with up to 16 servo motors\u003c\/li\u003e\n\u003cli\u003eLED mood lighting with smooth fades\u003c\/li\u003e\n\u003cli\u003ePan-tilt camera control system\u003c\/li\u003e\n\u003cli\u003eAnimated holiday props with synchronized motion\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThis module works with any microcontroller that has I2C support, including Arduino Uno\/Mega, Raspberry Pi, ESP32, and STM32. It operates at 3.3V or 5V logic levels, making it safe for both 3.3V and 5V systems. Common pairings include standard hobby servos and 5V LED strips.\u003c\/p\u003e\u003ch2\u003eWiring Notes\u003c\/h2\u003e\u003cp\u003eConnect VCC to the system logic supply (3.3V–5V) and V+ to an external power source for the controlled devices (up to 6V). SDA and SCL lines typically require pull-up resistors; most breakout boards include them. For servos, ensure the external supply can handle the total stall current.\u003c\/p\u003e\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003eIs this compatible with Raspberry Pi?\u003c\/summary\u003e\u003cp\u003eYes, the PCA9685 uses the standard I2C interface, which is available on all Raspberry Pi models. You can control it using Python libraries like Adafruit_CircuitPython_PCA9685.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow many servos can it control?\u003c\/summary\u003e\u003cp\u003eEach PCA9685 module can control up to 16 servos independently. You can daisy-chain up to 62 modules on the same I2C bus for larger projects.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eDoes it require an external power supply?\u003c\/summary\u003e\u003cp\u003eYes, the V+ terminal must be connected to a separate power source (5–6V) to power the servos or LEDs. The logic circuitry is powered via the VCC pin from your microcontroller.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445080088941,"sku":"CDN-0934","price":300.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_cf3a7401-d1e4-4cc9-88ca-3249d1470649.jpg?v=1781513184","url":"https:\/\/compoden.com\/products\/pca9685-16-channel-pwm-driver-i2c-control","provider":"Compoden","version":"1.0","type":"link"}