retired V1 version — see the current Servo Shield V2/V3 for the latest design. detail: "Control up to 8 servos simultaneously via PCA9685 servo controller." - label: "General-purpose PWM" detail: ...

#define RELAY1_PIN 12 // GPIO12 for Relay 1 (Channel 1) #define RELAY2_PIN 13 // GPIO13 for Relay 2 (Channel 2) #define PCA9685_ADDR1 0x40 // Default address (A0-A2 not connected) #define ...