HardLabs

Controller b r1

4lml4·LED_Glasses·hardware/controller_b_r1/controller_b_r1.kicad_pcb

Controller b r1 PCB layout, top view — open source RP2040/RP2350 board by 4lml4

About the Controller b r1 PCB

Controller b r1 is an open source RP2040/RP2350 PCB design by 4lml4, published on GitHub. It is a 4-layer board measuring 131.5 × 13 mm, with 45 components from 22 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the NCP115ASN330T2G, 74LVCH2T45DC,125 and W25Q16JVZPIQ. By type, the board carries 19 capacitors, 11 resistors, 4 ICs, 3 connectors, 3 diodes and 2 switches.

It belongs with the displays & leds designs in this gallery.

From the project

New public repo for work on LED Glasses

The hardware consists entirely of three PCBs without an enclosure with low profile hinges and a battery system that has yet to be worked out. The PCBs are designed in KiCAD and are as follows:

- The controller arm (hardware/armmcu) which houses the microcontroller (STM32G071KBU6), a microphone (SPH0641LM4H-1) and a 3v3 linear regulator. - The power arm (hardware/armpower) which houses input power protection, an on switch, 5v5 switching regulator and a power good indicator. - The front display (hardware/frontdisplay) which houses the LED matrix (SK6812MINI`).

Main components on the Controller b r1

NCP115ASN330T2G74LVCH2T45DC,125RP2040W25Q16JVZPIQ

Controller b r1 bill of materials (BOM)

45 components, 22 distinct parts.

QtyPartRefs
1
NCP115ASN330T2G
U101
1
74LVCH2T45DC,125
U102
1
RP2040
U103
1
W25Q16JVZPIQ
U104
1
NMOS
Q101
1
12MHz
Y101
1
Front Pannel Connector
J101
1
SWD Header
J102
1
USB Micro B
J103
1
SPK0641HT4H-1
MK101
2
User Button
SW101, SW102
3
Polarity Protection
D101, D102, D103
4
1u
C101, C102, C105, C106
13
100n
C103, C104, C107, C108, C109, C110, C111, C112 +5
2
10p
C118, C119
1
75k
R101
3
10k
R102, R106, R107
1
DNP
R103
2
27R
R104, R105
2
1k
R108, R109
Show 2 more
QtyPartRefs
1
15k
R110
1
10k
RN101

Controller b r1 design files

The KiCad project lives in the 4lml4/LED_Glasses repository on GitHub; these links point at the commit this page was built from.

Controller b r1: common questions

What microcontroller does the Controller b r1 use?

The Controller b r1 is built around the RP2040, from the RP2040/RP2350 family.

How big is the Controller b r1 PCB?

The Controller b r1 measures 131.5 × 13 mm, has 4 copper layers and is 1.6262 mm thick.

How many components are on the Controller b r1?

45 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the Controller b r1 design files?

From the 4lml4/LED_Glasses repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Controller b r1 design in my own project?

The repository has no license, so all rights stay with 4lml4. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Controller b r1 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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