Three PWM Bonnets

Stack of three 16-channel PWM/Servo Bonnets. Wires on the left provide power to drive the servos. In the front are 48 sets of 3-pins, each to control a servo (16 others are controlled by the 16-channel HAT). The double row of 20-pins at the top, is where the Unicorn is plugged in. At the upper right are 6 addressing pads (A5 A4...A1 A0) These are used to differentiate the 3 bonnets and the HAT on the I2C buss. Note that pads A1 and A0 are shorted (binary 3).