# NE555 Motor Driver Board ## Description Provisional recreation of a simple NE555P motor driver/speed-control board from an image, including visible components, connectors, mounting holes, and documented ambiguities for later refinement. ## Project Details - **Owner:** wilfredrajakumar - **Created:** 4/10/2026 - **Last Updated:** 5/24/2026 - **Visibility:** Public - **Mounting Hole Size:** M3 - **Role:** Mounting Hole - **Manufacturer Part Number:** NPTH-M3-MOUNTING-HOLE - **Package:** M3 - **Role Details:** Provisional corner mounting hole; exact diameter unknown - **Manufacturer Name:** Generic - **Stars:** 1 ## Key Components ### D1 — Generic Diode - Part Type: Diode - Package: THT_DO-41_SOD81_P7.62mm_Horizontal - Manufacturer Name: Microchip - Manufacturer Part Number: 1N4148-1 - Role: Protection Diode - Role Details: Provisional diode placeholder; exact type and orientation require confirmation **Pins:** - A [pin 2] - K [pin 1] ### D2 — Generic Diode - Role Details: Provisional diode placeholder; exact type and orientation require confirmation - Manufacturer Part Number: 1N4148-1 - Manufacturer Name: Microchip - Role: Protection Diode - Package: THT_DO-41_SOD81_P7.62mm_Horizontal - Part Type: Diode **Pins:** - A [pin 2] - K [pin 1] ### D3 — Generic Diode - Role: Protection Diode - Role Details: Flyback diode across motor path with cathode on DRIVE side and anode on MOTOR_NEG side; current placeholder still needs final diode selection - Manufacturer Part Number: 1N4148-1 - Manufacturer Name: Microchip - Part Type: Diode - Package: THT_DO-41_SOD81_P7.62mm_Horizontal **Pins:** - A [pin 2] - K [pin 1] ### J1 — TerminalBlock-01x02P-5.00mm - Role: Power Input - Package: THT 5.00mm 2-pin terminal block - Manufacturer Part Number: TerminalBlock-01x02P-5.00mm - Role Details: Provisional 2-pin input connector placeholder for board supply - Manufacturer Name: Generic - Part Type: Connector **Pins:** - P1 [pin 2] - P2 [pin 1] ### J2 — TerminalBlock-01x02P-5.00mm - Manufacturer Name: Generic - Manufacturer Part Number: TerminalBlock-01x02P-5.00mm - Part Type: Connector - Package: THT 5.00mm 2-pin terminal block - Role: Motor Output - Role Details: Provisional 2-pin connector placeholder for motor leads **Pins:** - P1 [pin 2] - P2 [pin 1] ### Q1 — IRLZ44NPBF - Role Details: Through-hole IRLZ44NPBF low-side PWM motor switch for J2 motor output - Manufacturer Part Number: IRLZ44NPBF - Part Type: Transistor - Manufacturer Name: Infineon Technologies - Package: TO-220AB - License: https://creativecommons.org/licenses/by/4.0/ - Role: Motor Driver MOSFET - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### U1 — NE555P - 518340 - Package or Case Code: DIP-8_W7.62mm - Datasheet URL: http://www.ti.com/lit/ds/symlink/ne555.pdf - Manufacturer Name: Texas Instruments Inc. - Package: PDIP-8 - Role Details: Provisional NE555P timer placeholder reconstructed from image - Role: PWM Timer - Manufacturer Part Number: NE555P **Pins:** - CV [pin 5] - DIS [pin 7] - GND [pin 1] - Q [pin 3] - R [pin 4] - THR [pin 6] - TR [pin 2] - VCC [pin 8] ### VR1 — 3306F-1-103 - Resistance: 10kΩ - Role: Speed Adjust Potentiometer - Role Details: Provisional trimmer/potentiometer placeholder; exact value and style require confirmation - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/3306.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Bourns Inc. - Package: Through Hole - Part Type: Potentiometer - Manufacturer Part Number: c **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/wilfredrajakumar/ne555-motor-driver-board~fk](https://www.flux.ai/wilfredrajakumar/ne555-motor-driver-board~fk).* --- *Generated from [https://www.flux.ai/wilfredrajakumar/ne555-motor-driver-board~fk](https://www.flux.ai/wilfredrajakumar/ne555-motor-driver-board~fk)*