2 layers72 × 42 mm
NRF24 jammer
W0rthlessS0ul/nRF24_jammer
The nRF24 jammer is a powerful tool that requires an ESP32 and configurable numbers of NRF24 modules to assemble.
51 parts1kMIT
2 layers20.3 × 17.1 mm
Pi rgb led board
wonkoderverstaendige/BeholderPi1piEye of the Beholder
- Size
- 20.3 × 17.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 16
- Pads
- 43
- Tracks, vias
- 72, 6
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Jan 2019
- Updated
- 23 Mar 2023
Overview
Pi rgb led board is an open-source printed circuit board by wonkoderverstaendige, from the wonkoderverstaendige/BeholderPi repository on GitHub, published under the MIT licence. It is a 2-layer board of 20.3 × 17.1 mm with 12 parts on 16 nets, routed with 72 tracks and 6 vias.
It is built around the BC817. Its parts include 6 resistors, 3 transistors, 2 connectors and 1 diode. It belongs with the lEDs and displays boards of this library.
Main components
1README
README.md
Outline
- scalable array of networked camera nodes
- low-cost (relatively) ~100--200 Euro/node
- 800x600 @ 30 fps in visible or IR
- low latency preview of merged views
- synchronized to sub-millisecond time resolution
- hardware accelerated encoding
- synchronization with external systems (e.g. elecrophysiology recordings)
Hardware
- RaspberryPi 3B+/4B
- Raspberry/Picamera compatible camera module
- e.g. Camera Module v2 (8MP, FOV: 62.2° horizontal, 48.8° vertical)
- Read: How the PiCamera works
- PoE hat for power/network
- A decent receiving computer (ideally 1 CPU core/node)
- optional hardware encoding GPU
- PoE capable ethernet switch if PoE is used
Software
- based on Picamera, ZMQ, OpenCV, FFmpeg
Inspiration
Raspicam paper
Inspiration of the system was taken from prior work done by Saxena et al. 2018, code here.
Installation
Hardware
Processing
TODO
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2, R3 |
| 3 | 220 | Resistor_SMD:R_0805_2012Metric | R4, R5, R6 |
| 3 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 1 | Conn_02x06_Top_Bottom | Connector_PinHeader_1.27mm:PinHeader_2x06_P1.27mm_Vertical | J1 |
| 1 | LED_RGB | LED_SMD:LED_RGB_5050-6 | D1 |
| 1 | UART | Connector_PinHeader_1.27mm:PinHeader_1x04_P1.27mm_Vertical | J2 |
Questions
How big is the Pi rgb led board PCB?
It measures 20.3 × 17.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pi rgb led board use?
12 parts, built around the BC817. 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 Pi rgb led board KiCad files?
From the wonkoderverstaendige/BeholderPi repository on GitHub, at the commit this page was made from: the board is physical/pcb/pi_rgb_led_board/pi_rgb_led_board.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pi rgb led board design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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