2 layers150.4 × 114 mm
VMFB
src1138/VMFB
Simple, inexpensive bird feeder that dispenses peanuts in exchange for dropping stuff in a hole. A vending machine for clever birds.
138 parts2
2 layers64.6 × 67.3 mm
VMFB MC
src1138/VMFB-MC1Simplified version of the VMFB PCB designed to rely on a microcontroller
- Size
- 64.6 × 67.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 38
- Pads
- 120
- Tracks, vias
- 289, 0
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 21 Nov 2023
- Updated
- 26 Oct 2026
Overview
VMFB MC is an open-source printed circuit board by src1138, from the src1138/VMFB-MC repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 64.6 × 67.3 mm with 47 parts on 38 nets, routed with 289 tracks and 0 vias.
It is built around the LM393, SFH 313 FA-2/3 and TIP120. Its parts include 14 resistors, 10 connectors, 9 transistors, 8 diodes and 2 capacitors.
Main components
3
LM393
SOP-8-16V~16V 0℃~+70℃ 2 2.5mA 250nA 2V~36V 36V 5mV 5nA Fail-safe function Open-drain SOP-8 Comparators ROHSMSKSEMIComparators
SFH 313 FA-2/3
插件-40℃~+100℃ 200mW 200nA 50mA 70V 870nm 插件 Phototransistors ROHSOSRAM Opto SemiconPhototransistors
TIP120
TO-220-55℃~+150℃ 200uA 2V@3A,12mA 2W 5A 5V 60V NPN TO-220 Darlington Transistors ROHSJiangsu Changjing Electronics Technology (CJ)Darlington Transistors
README
README.mdVMFB-MC
Simplified version of the VMFB (https://github.com/src1138/VMFB) PCB designed with a smaller footprint and BOM to rely on a microcontroller or single-board computer to control and monitor it.
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R8, R9, R10, R11, R12, R13, R14 |
| 7 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1, J2, J3, J6, J7, J8, J10 |
| 7 | IR LED | LED_THT:LED_D5.0mm_IRGrey | D1, D2, D3, D4, D5, D6, D8 |
| 7 | SFH313FA-2/3 | LED_THT:LED_D5.0mm_IRBlack | Q1, Q2, Q3, Q4, Q5, Q6, Q9 |
| 6 | 150R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R2, R4, R5, R6, R7 |
| 2 | 100K | Potentiometer_THT:Potentiometer_Piher_PT-10-V10_Vertical | RV1, RV2 |
| 2 | TIP120 | Package_TO_SOT_THT:TO-220-3_Vertical | Q7, Q8 |
| 1 | 10nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P2.54mm_Vertical_KathodeUp | D7 |
| 1 | 220R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J9 |
| 1 | LM393 | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | LOGO | VMFB-MC:VMFB_logo_20mm | G*** |
Questions
How big is the VMFB MC PCB?
It measures 64.6 × 67.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the VMFB MC use?
47 parts, built around the LM393, SFH 313 FA-2/3 and TIP120. 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 VMFB MC KiCad files?
From the src1138/VMFB-MC repository on GitHub, at the commit this page was made from: the board is VMFB-MC.kicad_pcb and its schematic VMFB-MC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the VMFB MC design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers126.8 × 117.6 mm
- 2 layers364.4 × 167.3 mm
- 2 layers148.8 × 132.2 mm
Usbflashprog
robsonsmartins/usbflashprog
A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.
125 parts36 - 2 layers489.6 × 170.7 mm
Mission control
dcpedit/mission-control
Modern replacement PCB for the IBM Model M 122
286 parts31CC-BY-4.0 - 2 layers168 × 123 mm
V2 - 2
RudgeLab/FluoPi
Code and teaching materials for UC/BackyardBrains raspberry pi "macro" scope.
131 parts26 - 2 layers
Catozap
jones139/catocam
Uses a custom trained YoloV8 model on a Raspberry Pi to Detect Cats in CCTV images and Unleash a Cat Deterrent
3 parts18GPL-3.0 - 2 layers32.5 × 21.2 mm
Taptap
dcpedit/taptap
TapTap is a solenoid breakout board for those who are interested in adding a solenoid to their existing project. All you need are the following components, and an extra data pin on your microcontroller.
9 parts13CC-BY-4.0