6 layers313 × 259.5 mm
Open8-vga motherboard
adham404/Open8-VGA
An 8-bit computer from 74HC logic: microcoded CPU, VGA, PS/2, on-board editor and assembler. Play it in your browser.
322 parts3MIT
2 layers22.6 × 56 mm
Pcb power connect
bablokb/pcb-power-connectFeed power to the Raspberry Pi using Pins 2 and 4
- Size
- 22.6 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 17
- Pads
- 49
- Tracks, vias
- 80, 2
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 17 Jul 2021
- Updated
- 31 Oct 2021
Overview
Pcb power connect is an open-source printed circuit board by bablokb, from the bablokb/pcb-power-connect repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 22.6 × 56 mm with 12 parts on 17 nets, routed with 80 tracks and 2 vias.
It is built around the SN74HC05N and M2.5. Its parts include 8 connectors, 1 resistor and 1 IC.
Main components
2README
README.mdpcb-power-connect
In this repository you will find a small pcb useful if you want to feed power to your Pi using GPIO pins 2 and 4 (e.g. because the pi is within a housing and there is no space for a connection to the usb-power plug of the pi).
The pcb supports some additional features
- connect an external high->low signal (e.g. button) to GPIO3 (acts as on/off-switch, see below)
- connect an external low->high signal to GPIO3 via an inverter (74HC05)
- connect a LED
- connect an IR (or something else)
- connect an UART
Pinout
- 1: 3V3
- 2: 5V
- 3: GPIO2: nc
- 4: 5V
- 5: GPIO3: on/off
- 6: GND
- 7: GPIO4: IR
- 8: GPIO14: TX
- 9: GND
- 10: GPIO15: RX
- 11: GPIO17: LED
- 12: GPIO18: nc
Configuration
Use the following configuration in /boot/config.txt:
# configure GPIO3 as shutdown-button
dtoverlay=gpio-shutdown
# configure GPIO4 for IR
dtoverlay=gpio-ir,gpio_pin=4
# use external heartbeat-LED
dtparam=act_led_trigger=heartbeat
dtoverlay=act-led,gpio=17License
Shield: 
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | MK1, MK2 |
| 1 | 820 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | Conn_01x04_Power | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J7 |
| 1 | Conn_5V | user:TerminalBlock_MetzConnect_Type182_PT11302HBBN_1x02_P3.50mm_Horizontal | J2 |
| 1 | Conn_IR | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Conn_LED | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4 |
| 1 | Conn_ON_OFF | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Conn_Pi | Connector_PinSocket_2.54mm:PinSocket_2x06_P2.54mm_Vertical | P1 |
| 1 | Conn_Touch | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | Conn_UART | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | SN74HC05N | user:SO-14_3.9x8.65mm_P1.27mm_HandSolder | U1 |
Questions
How big is the Pcb power connect PCB?
It measures 22.6 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pcb power connect use?
12 parts, built around the SN74HC05N and M2.5. 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 Pcb power connect KiCad files?
From the bablokb/pcb-power-connect repository on GitHub, at the commit this page was made from: the board is pcb-power-connect/pcb-power-connect.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pcb power connect design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 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 layers40.9 × 85 mm
Studio mic
Spirit532/studio_mic
A simple, easy to build preamplifier for any true condenser capsule, to make a condenser microphone
63 parts150MIT - 2 layers65 × 56 mm
- 2 layers65 × 56 mm
ClumsyMIDI
gmcn42/clumsyMIDI
A THT-only Raspberry Pi expansion board containing a MIDI interface, DAC, and OLED display
26 parts90CC-BY-SA-4.0 - 6 layers203 × 151.8 mm
PDNode Baseboard
DvidMakesThings/HW_PDNode-600-Pro
The PDNode-600 is a professional-grade, 600W USB Power Delivery Unit designed specifically for compact 10-inch rack systems, targeting embedded developers, homelab enthusiasts, test benches, and smart infrastructure.
236 parts86AGPL-3.0 - 4 layers60 × 127 mm
- 2 layers85 × 56.5 mm
- 4 layers70 × 60 mm
Marelleo
Zebra-Rodeo/marelleo
Une boîte qui raconte une histoire quand on pose une figurine dessus. Boîtier, carte, micrologiciel et doc pour la refaire.
57 parts47