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i2cmotor

1 year ago 48
  • Description
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  • BOM
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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.

Documents

i2cmotor

i2cmotor pcb

BOM

ID Name Designator Footprint Quantity BOM_Manufacturer Part BOM_Manufacturer BOM_Supplier BOM_Supplier Part
1 A2541WV-6P H1 HDR-TH_6P-P2.54-V 1 A2541WV-6P Changjiang Connectors LCSC C225481
2 DSHP03TSGER SW1 SW-SMD_6P-L5.4-W5.4-P1.27-LS8.4 1 DSHP03TSGER KE LCSC C50844
3 10K R1,R2,R3 R0805 3 TC0525D1002T5E UniOhm LCSC C44791
4 ULN2003ADR U2,U3,U4 SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL 3 ULN2003ADR TI LCSC C7512
5 MCP23017-E/SO U1 SOIC-28_L18.1-W10.3-P1.27-LS10.3-BL 1 MCP23017-E/SO MICROCHIP LCSC C47023
6 XH-5AK M CN1,CN2,CN3,CN4 CONN-TH_5P-P2.50_XH-5A 4 - Boom Precision Elec LCSC C146107
7 100nF C1,C2,C3,C4 C1206 4 CL31B104KEHSNNE SAMSUNG LCSC C73745

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