Servo Shield for the WeMos D1 Mini

9 months ago

Open source license: Public Domain

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Description

A 16-channel servo controller shield for the WeMos D1 Mini and other compatible boards based on the same header format. Features: 16 PWM output channels at 3.3V. I2C interface with pull-up resistors. Configurable I2C address to allow stacking. Default address 0x40. PCA9685 PWM controller IC. SCL: D1. SDA: D2. External power terminals for powering servos at 6V. Power jumper to link D1 Mini 5V rail to servo power. OE (active low Output Enable) broken out for manual connection if required. Power LED to show when servo power is available.

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Servo Shield for the WeMos D1 Mini

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Servo Shield for the WeMos D1 Mini

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BOM

ID Name Designator Footprint Quantity
1 220R R13,R7,R8,R9,R10,R11,R12,R14,R15,R16,R17,R18,R19,R20,R21,R22 0603 16
2 M08 H1,H2 1X08 2
3 PCA9685 IC1 TSSOP28 1
4 SJN SJ1,SJ2,SJ3,SJ4,SJ5,SJ6 SJ 6
5 10K R1,R2,R3,R4,R5,R6,R23,R24 0603 8
6 M03PTH JP1,JP2,JP3,JP4,JP5,JP6,JP7,JP8,JP9,JP10,JP11,JP12,JP13,JP14,JP15,JP16 1X03 16
7 SJCN SJ7,SJ8 SJC 2
8 M023.5MM JP17 SCREWTERMINAL-3.5MM-2 1
9 M02PTH JP18 1X02 1
10 GREEN LED1 LED-0603 1
11 1K R25 0603 1
12 10uF C1 0805 1
13 !OE JP19 1X01 1

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