PCA9685 16-चैनल PWM/सर्वो ड्राइवर पिनआउट

पिन

GND
OE (output enable, active low — leave open for always-on)
SCL / SDA (I2C, address 0x40 + solder jumpers A0–A5)
VCC (logic 3.3–5V)
V+ (SERVO power 5–6V — separate supply, the green terminal, not the MCU 5V)
16 channels × 3 pins each: PWM / V+ / GND, standard servo plug order
12-bit PWM at 24–1526 Hz — set ~50 Hz for servos

विनिर्देश

Logic supply (VCC)	2.3–5.5 V
Servo supply (V+)	5–6 V, separate supply
इंटरफ़ेस	I2C, up to 1 MHz
I2C address	0x40 default; 0x40–0x7F via A0–A5 (0x70 all-call)
Channels	16
PWM resolution	12 bit (4096 steps)
PWM फ़्रीक्वेंसी	24–1526 Hz (≈50 Hz for servos)
Output current	25 mA sink / 10 mA source per pin (at 5 V)
Board size	≈62 × 25 mm

और पिनआउट

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