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STD i2cmotor
License: Public Domain
Mode: Editors' pick
- 0
Update time：
2021-09-12 10:46:30
Creation time：
2020-02-29 18:04:45
Description
Use MCP23017 i2c port expander to drive 4 stepper motors.
The board contains the port expander and 3 ULN2003A darlington arrays.
Replaces 4 ULN2003 boards, and a lot of wires.
Design Drawing
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Supplier Part | BOM_Manufacturer | BOM_Manufacturer Part |
|---|---|---|---|---|---|---|---|---|
| 1 | A2541WV-6P | H1 | HDR-TH_6P-P2.54-V | 1 | LCSC | C225481 | Changjiang Connectors | A2541WV-6P |
| 2 | DSHP03TSGER | SW1 | SW-SMD_6P-L5.4-W5.4-P1.27-LS8.4 | 1 | LCSC | C50844 | KE | DSHP03TSGER |
| 3 | 10K | R1,R2,R3 | R0805 | 3 | LCSC | C44791 | UniOhm | TC0525D1002T5E |
| 4 | ULN2003ADR | U2,U3,U4 | SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL | 3 | LCSC | C7512 | TI | ULN2003ADR |
| 5 | MCP23017-E/SO | U1 | SOIC-28_L18.1-W10.3-P1.27-LS10.3-BL | 1 | LCSC | C47023 | MICROCHIP | MCP23017-E/SO |
| 6 | XH-5AK M | CN1,CN2,CN3,CN4 | CONN-TH_5P-P2.50_XH-5A | 4 | LCSC | C146107 | Boom Precision Elec | - |
| 7 | 100nF | C1,C2,C3,C4 | C1206 | 4 | LCSC | C73745 | SAMSUNG | CL31B104KEHSNNE |
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