Power r2
About the Power r2 PCB
Power r2 is an open source PCB design by 4lml4, published on GitHub. It is a 4-layer board measuring 131.5 × 13 mm, with 41 components from 27 distinct parts.
Other key parts include the SIC473. By type, the board carries 19 capacitors, 14 resistors, 2 connectors, 1 IC, 1 transistor and 1 fuse.
It belongs with the displays & leds designs in this gallery, and the repository also holds 1 earlier revision of it.
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 Power r2
Power r2 bill of materials (BOM)
41 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SIC473 | Vishay PowerPAK MLP55-27 | U101 |
| 1 | AONR21357 | 8-PowerVDFN (8-DFN-EP) (3x3mm) | Q101 |
| 1 | FPC Connector | CF35082D0RE-NH | J101 |
| 1 | Power Input | JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J102 |
| 1 | SBF32302ASTP | Fuse_1206_3216Metric | F101 |
| 1 | MLVA06V26C100-R | R_0603_1608Metric | RV101 |
| 1 | D5V0L1B2WS-7 | D_SOD-323 | D101 |
| 1 | 15u | MPXV1D1054 | L101 |
| 3 | 2u2 100V | C_1210_3225Metric | C101, C102, C103 |
| 5 | 100n 100V | C_0402_1005Metric | C104, C105, C106, C118, C119 |
| 6 | 22u | C_0805_2012Metric | C107, C108, C109, C110, C111, C112 |
| 1 | 10n 5% 50V C0G/NP0 | C_0603_1608Metric | C113 |
| 1 | 4u7 | C_0402_1005Metric | C114 |
| 1 | 1u | C_0402_1005Metric | C115 |
| 1 | 3n9 5% 50V C0G/NP0 | C_0603_1608Metric | C116 |
| 1 | 680p %5 50V C0G/NP0 | C_0603_1608Metric | C117 |
| 4 | 10k 1% | R_0402_1005Metric | R101, R107, R109, R114 |
| 1 | 8k66 1% | R_0402_1005Metric | R102 |
| 1 | 47k5 1% | R_0402_1005Metric | R103 |
| 1 | 52k3 1% | R_0402_1005Metric | R104 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 62k 1% | R_0402_1005Metric | R105 |
| 1 | 3R3 1% | R_0402_1005Metric | R106 |
| 1 | 18k 1% | R_0402_1005Metric | R108 |
| 1 | 160k 1% | R_0402_1005Metric | R110 |
| 1 | 390k 1% | R_0402_1005Metric | R111 |
| 1 | 88k7 1% | R_0402_1005Metric | R112 |
| 1 | 300k 0.5% | R_0402_1005Metric | R113 |
Power r2 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.
Power r2: common questions
How big is the Power r2 PCB?
The Power r2 measures 131.5 × 13 mm, has 4 copper layers and is 1.6262 mm thick.
How many components are on the Power r2?
41 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the Power r2 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 Power r2 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.
More boards in LED_Glasses
Earlier revisions in the repo: power_r1
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