HardLabs

Rpi camera led

mithro·rpi-camera-led·hardware/rpi-camera-led.kicad_pcb

Rpi camera led PCB layout, top view — open source RISC-V board by mithro

About the Rpi camera led PCB

Rpi camera led is an open source RISC-V PCB design by mithro, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 25 × 23.9 mm, with 20 components from 16 distinct parts.

Its main chip is the WCH CH32V003A4M6 (LCSC C5346357), from the RISC-V family. By type, the board carries 9 resistors, 4 connectors, 2 transistors, 2 diodes, 2 capacitors and 1 IC.

It belongs with the sensors designs in this gallery.

From the project

Interposer for the Raspberry Pi camera flex cable: passes the 15-way CSI bus straight through and adds I2C-controlled camera GPIO, PWM illumination LEDs and an ambient light sensor, driven by a CH32V003.

An interposer for the Raspberry Pi camera flex cable (15 pin, 1.0 mm pitch FPC). It sits in the middle of the cable, passes all fifteen camera signals straight through, and adds a CH32V003A4M6 that gives the Pi I2C-controlled camera GPIO, PWM illumination LEDs and an ambient light reading.

25.0 × 23.9 mm, two layers, everything on the front. J1 (left) faces the Raspberry Pi and J2 (right) faces the camera; they sit 180° apart so the two cable segments leave opposite edges and the board drops into an existing cable run in line. The MCU is the SOIC-16 in the middle, the two white illumination…

Rpi camera led, from the project README
From the project README

Main components on the Rpi camera led

WCH CH32V003A4M6 (LCSC C5346357)

Rpi camera led bill of materials (BOM)

20 components, 16 distinct parts.

QtyPartRefs
1
WCH CH32V003A4M6 (LCSC C5346357)
CH32V003A4M6
U1
1
AO3400A
Q1
1
e.g. Everlight PT17-21C/L41/TR8
Phototransistor
Q2
1
JUSHUO AFA07-S15FCA-00 (LCSC C262721) / Amphenol SFW15R-1STE1LF
FFC 15P 1.0mm bottom contact (to Raspberry Pi)
J1
1
JUSHUO AFA07-S15ECA-00 (LCSC C262742) / Amphenol SFW15R-2STE1LF
FFC 15P 1.0mm top contact (to camera)
J2
1
JST SM04B-SRSS-TB or SH1.0-4P clone
Qwiic (JST SH 1.0mm)
J3
1
SWD program header 2.54mm
J4
2
White 0805/2835, e.g. Hongli/NationStar
White LED
D1, D2
1
100nF
C1
1
1uF
C2
2
4.7k
R1, R2
2
10R
R3, R4
1
100R
R5
2
0
R6, R7
1
10k
R8
1
47k
R9

Rpi camera led design files

The KiCad project lives in the mithro/rpi-camera-led repository on GitHub; these links point at the commit this page was built from.

Rpi camera led: common questions

What microcontroller does the Rpi camera led use?

The Rpi camera led is built around the WCH CH32V003A4M6 (LCSC C5346357), from the RISC-V family.

How big is the Rpi camera led PCB?

The Rpi camera led measures 25 × 23.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rpi camera led?

20 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Rpi camera led design files?

From the mithro/rpi-camera-led repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Rpi camera led design in my own project?

Yes, under the terms of its Apache-2.0 license, which mithro chose for the repository.

Can I test firmware for the Rpi camera led without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RISC-V firmware against it before you order a PCB.

Similar boards