2 layers
2 layers81.3 × 62.2 mm
Step linear
dzavalishin/hardware3Misc smart house hardware
- Size
- 81.3 × 62.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 82
- Nets
- 62
- Pads
- 240
- Tracks, vias
- 512, 27
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 25 Oct 2017
- Updated
- 11 Oct 2023
Overview
Step linear is an open-source printed circuit board by dzavalishin, from the dzavalishin/hardware repository on GitHub. It is a 2-layer board of 81.3 × 62.2 mm with 82 parts on 62 nets, routed with 512 tracks and 27 vias.
It is built around the ATMEGA8-16PU, MAX485ED and L293D, with the LM2904, TL082 and L78L05CZ among its other parts. Its parts include 33 resistors, 19 capacitors, 10 diodes, 7 ICs and 5 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
6
ATMEGA8-16PU
DIP-28-40℃~+85℃ 10bit 16MHz 1KB 23 4.5V~5.5V 512Byte 8 Bit 8KB AVR Built-in FLASH DIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MAX485ED
SOP-8-40℃~+85℃ 1 1 1mA 32 4.75V~5.25V 5Mbps Half-Duplex Transceiver ±8kV SOP-8 RS-485 / RS-422 ICs ROHSHTCRS-485 / RS-422 ICs
L293D
DIP-16-40℃~+150℃ 1.2A 2 4.5V~36V 4mA 600mA DIP-16 Brushed DC Motor Drivers ROHSSTMicroelectronicsStepper Motor DriverLM2904
SOP-8-15V~-1.5V、1.5V~15V 0℃~+70℃ 1MHz 2 2mV 3V~30V 3nA 40mA 45nA 500uA 85dB SOP-8 Operational Amplifier ROHSGOODWORKOperational AmplifierTL082
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 13V/us 2 2.5nA 36V 3MHz 3mV 85dB Short-Circuit Protection SOP-8 FET Input Amplifiers ROHSGcoreOperational Amplifier
L78L05CZ
TO-920℃~+125℃ 100mA 30V 40uV 49dB@(120Hz) 5V Fixed Over Temperature Protection、Short Circuit Protection Positive TO-92 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsPower Management - Specialized
README
README.mdhardware
Misc smart house hardware, kicad designs.
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 560 | Resistors_SMD:R_1206_HandSoldering | R1, R2, R3, R4, R19, R24, R25, R29, R30, R31 |
| 8 | 0,1 | Capacitors_SMD:C_1206_HandSoldering | C1, C4, C7, C9, C10, C16, C17, C18 |
| 8 | 1k | Resistors_SMD:R_1206_HandSoldering | R13, R20, R22, R23, R27, R28, R32, R33 |
| 7 | 10k | Resistors_SMD:R_1206_HandSoldering | R9, R10, R12, R14, R15, R16, R17 |
| 3 | 1,0 | Capacitors_SMD:C_0805_HandSoldering | C5, C6, C11 |
| 3 | 47,0 | Capacitors_SMD:CP_Elec_6.3x5.3 | C2, C3, C12 |
| 3 | LED | LEDs:LED_1206_HandSoldering | D5, D6, D7 |
| 2 | 0,33 | Capacitors_SMD:C_0805_HandSoldering | C13, C14 |
| 2 | 18 | Capacitors_SMD:C_1206_HandSoldering | C21, C22 |
| 2 | 1k | Potentiometers:Potentiometer_Triwood_RM-065 | RV2, RV3 |
| 2 | 220k | Resistors_SMD:R_1206_HandSoldering | R21, R26 |
| 1 | +12 | Connectors_Terminal_Blocks:TerminalBlock_bornier-2_P5.08mm | J6 |
| 1 | 0,2 2W 1% | Resistors_SMD:R_2512_HandSoldering | R6 |
| 1 | 1,5m | Resistors_SMD:R_1206_HandSoldering | R8 |
| 1 | 100 | Resistors_SMD:R_1206_HandSoldering | R5 |
| 1 | 100,0 | Capacitors_SMD:CP_Elec_6.3x5.7 | C15 |
| 1 | 1m | Potentiometers:Potentiometer_Trimmer_Bourns_3296W | RV1 |
| 1 | 200 1% | Resistors_SMD:R_1206_HandSoldering | R7 |
| 1 | 2N3904 | TO_SOT_Packages_THT:TO-92_Molded_Narrow | Q1 |
| 1 | 2k 1% | Resistors_SMD:R_1206_HandSoldering | R18 |
| 1 | 9,1k | Resistors_SMD:R_1206_HandSoldering | R11 |
| 1 | A | LEDs:LED_1206_HandSoldering | D1 |
| 1 | ATMEGA8-16PU | Housings_DIP:DIP-28_W7.62mm | U2 |
| 1 | B | LEDs:LED_1206_HandSoldering | D2 |
| 1 | C | LEDs:LED_1206_HandSoldering | D4 |
| 1 | Crystal | Crystals:Crystal_HC49-U_Vertical | Y1 |
| 1 | D | LEDs:LED_1206_HandSoldering | D3 |
| 1 | Dir | Pin_Headers:Pin_Header_Straight_2x01_Pitch2.54mm | J5 |
| 1 | Err | LEDs:LED_1206_HandSoldering | D8 |
| 1 | Hall | Pin_Headers:Pin_Header_Angled_2x03_Pitch2.54mm | J2 |
| 1 | IO | LEDs:LED_1206_HandSoldering | D10 |
| 1 | ISP | Pin_Headers:Pin_Header_Straight_2x05_Pitch2.54mm | J3 |
| 1 | L293D | Housings_DIP:DIP-16_W7.62mm | U1 |
| 1 | L78L05 | TO_SOT_Packages_THT:TO-92_Inline_Narrow_Oval | U7 |
| 1 | LM2904 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U6 |
| 1 | MAX485E | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U3 |
| 1 | Motor | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J1 |
| 1 | PC817 | Housings_DIP:DIP-4_W7.62mm | U10 |
| 1 | Run | LEDs:LED_1206_HandSoldering | D9 |
| 1 | TL082 | Housings_DIP:DIP-8_W7.62mm | U5 |
The 79 most common of 82 parts.
Questions
How big is the Step linear PCB?
It measures 81.3 × 62.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Step linear use?
82 parts, built around the ATMEGA8-16PU, MAX485ED, L293D and LM2904. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Step linear KiCad files?
From the dzavalishin/hardware repository on GitHub, at the commit this page was made from: the board is _Unused/step_linear_cpu/step_linear.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Step linear design in my own project?
Its repository states no licence, so its author keeps all rights: ask dzavalishin before reusing the design.
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