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STD Servo Shield for the WeMos D1 Mini
License: Public Domain
Mode: Editors' pick
- 6
Update time：
2024-04-10 17:57:47
Creation time：
2020-07-27 20:54:59
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.
Design Drawing
schematic diagram
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PCB
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| 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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