
Mackerel-30-proto
crmaykish/mackerel-68k
A series of single-board Motorola 68k computers with support for modern Linux

Este proyecto consiste en el desarrollo de una fuente de alimentación variable controlada digitalmente mediante un microcontrolador, permitiendo ajustar el voltaje de salida de forma precisa y programable.
FuenteRegulable is an open-source printed circuit board by EmanuelDecima, from the EmanuelDecima/Fuente-Variable-con-Microcontrolador repository on GitHub. It is a 2-layer board of 150 × 100 mm with 56 parts on 54 nets, routed with 310 tracks and 0 vias.
It is built around the LM2576T-5.0, TL082 and AMS1117-3.3, with the IRF540N, MBR20100 and 100UF/16V among its other parts. Its parts include 16 resistors, 13 capacitors, 6 diodes, 6 switches and 5 transistors.
Este proyecto consiste en el desarrollo de una fuente de alimentación variable controlada digitalmente mediante un microcontrolador, permitiendo ajustar el voltaje de salida de forma precisa y programable.
El sistema combina electrónica analógica (regulación de tensión) con control digital, integrando conceptos de:
Este tipo de soluciones es ampliamente utilizado en laboratorio, testing electrónico y sistemas industriales. :contentReference[oaicite:0]{index=0}
El sistema se basa en el uso de un microcontrolador que genera una señal PWM para controlar el nivel de tensión de salida.
Esto permite:
Este enfoque es común en fuentes modernas controladas digitalmente. :contentReference[oaicite:1]{index=1}
También puede escalarse a sistemas más complejos utilizados en industria y automatización. :contentReference[oaicite:2]{index=2}
El repositorio puede incluir:

| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100nF | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C5, C8, C9, C10, C11, C12, C13 |
| 6 | ?? | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10, R11, R12, R13, R14, R15 |
| 6 | SW_MEC_5E | Button_Switch_SMD:SW_MEC_5GSH9 | SW1, SW2, SW3, SW4, SW5, SW6 |
| 2 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4, R7 |
| 2 | 150R/2W | Resistor_THT:R_Axial_DIN0614_L14.3mm_D5.7mm_P15.24mm_Horizontal | R1a1, R1b1 |
| 2 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D2, D3 |
| 2 | 2N3904 | Package_TO_SOT_THT:TO-92_Wide | Q2, Q5 |
| 2 | IRF540N | Package_TO_SOT_THT:TO-220-3_Vertical | Q1, Q4 |
| 2 | MBR20100 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | D5, D6 |
| 1 | 0R1 / 0.5W | Resistor_THT:R_Axial_DIN0411_L9.9mm_D3.6mm_P12.70mm_Horizontal | R9 |
| 1 | 1000uF/35V | Capacitor_THT:CP_Radial_D14.0mm_P7.50mm | C6 |
| 1 | 100uF/16V | Capacitor_THT:CP_Radial_D8.0mm_P5.00mm | C7 |
| 1 | 10V | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D4 |
| 1 | 10mHy | Inductor_THT:L_Toroid_Vertical_L16.0mm_W8.0mm_P7.62mm | L1 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C3 |
| 1 | 11K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R8 |
| 1 | 150uHy | Inductor_THT:L_Toroid_Vertical_L16.0mm_W8.0mm_P7.62mm | L2 |
| 1 | 2200uF/35V | Capacitor_THT:CP_Radial_D16.0mm_P7.50mm | C1 |
| 1 | 2N7000 | Package_TO_SOT_THT:TO-92_Wide | Q3 |
| 1 | 3K3 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 4,7nF | Capacitor_THT:C_Rect_L7.0mm_W2.0mm_P5.00mm | C4 |
| 1 | 5K6 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | 6K8 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 8,2nF | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C2 |
| 1 | 8K2 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | AC_IN | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | GBP206 | Diode_THT:Diode_Bridge_32.0x5.6x17.0mm_P10.0mm_P7.5mm | D1 |
| 1 | LM2576T-5 | Package_TO_SOT_THT:TO-220-5_Vertical | U2 |
| 1 | OLED_I2C | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J4 |
| 1 | OUT-N | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J3 |
| 1 | OUT-P | Connector_Wire:SolderWirePad_1x01_SMD_5x10mm | J2 |
| 1 | TL082 | Package_DIP:DIP-8_W7.62mm | U4 |
| 1 | ~ | STM32:STM32BlackPill | U1 |

crmaykish/mackerel-68k
A series of single-board Motorola 68k computers with support for modern Linux

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vishal007-hacker/smart-home
ESP32-based smart home controller for switching 4 independent 230V AC loads, with per-channel current and voltage sensing, manual override buttons, status LEDs, and an I²C LCD display.
It measures 150 × 100 mm and has 2 copper layers, 1.6 mm thick.
56 parts, built around the LM2576T-5.0, TL082, AMS1117-3.3 and IRF540N. 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.
From the EmanuelDecima/Fuente-Variable-con-Microcontrolador repository on GitHub, at the commit this page was made from: the board is FuenteRegulable/FuenteRegulable.kicad_pcb and its schematic FuenteRegulable/FuenteRegulable.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask EmanuelDecima before reusing the design.