50p spectra6 4
StickyPix·Not-So-Sticky-Pix·Hardware/50p_spectra6_4/50p_spectra6_4.kicad_pcb
About the 50p spectra6 4 PCB
50p spectra6 4 is an open source Nordic nRF PCB design by StickyPix, published on GitHub. It is a 4-layer board measuring 54.5 × 47.6 mm, with 88 components from 50 distinct parts.
Its main chip is the NRF54L15-QFAA-R, from the Nordic nRF family. Other key parts include the ESD5451N, BQ24040DSQR, FH8614G1, BQ27220YZFR and GR6206P332MR-G. By type, the board carries 41 capacitors, 18 resistors, 7 ICs, 7 connectors, 7 inductors and 4 diodes.
It belongs with the displays & leds, iot & wireless and power & battery designs in this gallery.
From the project
Spectra 6 and 4 gray E-paper frame
StickyPix is a small, rechargeable e-paper picture frame that lets you send images from a phone or desktop app over Bluetooth Low Energy. The same product family supports a four-gray black-and-white display and a six-color display.
StickyPix is developed as a complete hardware and software product:
1. Choose an image in the Flutter app. 2. Crop, rotate, and adjust the image for the selected device. 3. The app converts the image to the display's limited palette using dithering. 4. The processed framebuffer is sent to the device over BLE. 5. The device refreshes the e-paper panel and returns…

Main components on the 50p spectra6 4
50p spectra6 4 bill of materials (BOM)
88 components, 50 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESD5451N | DFN1006-2 | U1 |
| 1 | BQ24040DSQR | IC_BQ24045DSQR | U2 |
| 1 | NRF54L15-QFAA-R | QFN40P600X600X90-49N | U3 |
| 1 | FH8614G1 | UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm | U4 |
| 1 | BQ27220YZFR | BGA9C50P3X3_158X162X62 | U5 |
| 1 | GR6206P332MR-G | SOT-23-3 | U6 |
| 1 | ZD25WQ80C | ZD25WQ80CEIGR | U7 |
| 1 | BSS138LT1G | SOT95P237X111-3N | Q1 |
| 1 | SI2301CDS-T1-GE3 | SOT-23 | Q2 |
| 1 | CRYSTAL_GND24 Crystal_GND24 | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y2 |
| 2 | CONN_01X03_PIN Conn_01x03_Pin | PinHeader_1x03_P2.54mm_Vertical | J1, J5 |
| 1 | USB_C_RECEPTACLE_POWERONLY_6P USB_C_Receptacle_PowerOnly_6P | USB_C_SHOU_HAN_6P | J2 |
| 1 | BATTERY | BATTERY_HC-1.2-2PWT | J3 |
| 1 | CONN_01X04_PIN Conn_01x04_Pin | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | CONN_01X02_PIN Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | FH34SRJ-50S-0.5SH_50_ | HRS_FH34SRJ-50S-0.5SH_50_ | J7 |
| 1 | Antenna_Shield | 2.4GHz_Left_Soldermask | AE1 |
| 4 | MBR0530 | D_SOD-123 | D1, D2, D3, D4 |
| 1 | FerriteBead | C_0201_0603Metric | FB1 |
| 1 | 2.7NH 2.7nH | RF_0201_0603Metric | L1 |
Show 30 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 3.5NH 3.5nH | RF_0201_0603Metric | L2, L3 |
| 2 | 10UH 10uH | L_Changjiang_FNR4012S | L4, L6 |
| 1 | 4.7UH 4.7uH | L_0603_1608Metric | L5 |
| 1 | 1.5PF 1.5pF | RF_0201_0603Metric | C1 |
| 1 | 2PF 2pF | RF_0201_0603Metric | C2 |
| 3 | 4.7UF 4.7uF | C_0402_1005Metric | C3, C36, C40 |
| 1 | 0.47UF 0.47uF | C_0402_1005Metric | C4 |
| 10 | 10UF 10uF | C_0603_1608Metric | C5, C6, C7, C9, C10, C11, C37, C38 +2 |
| 1 | 0.3PF 0.3pF | RF_0201_0603Metric | C8 |
| 1 | 470NF 470nF | C_0402_1005Metric | C12 |
| 1 | 100NF 100nF | C_0402_1005Metric | C13 |
| 2 | 2.2UF 2.2uF | C_0402_1005Metric | C14, C31 |
| 7 | 1UF 1uF | C_0402_1005Metric | C15, C16, C18, C32, C33, C34, C35 |
| 1 | 3.9PF 3.9pF | C_0201_0603Metric | C17 |
| 2 | 2.2UF 2.2uF | C_0201_0603Metric | C19, C28 |
| 4 | 100NF 100nF | C_0201_0603Metric | C20, C21, C22, C25 |
| 1 | 2.2NF 2.2nF | C_0201_0603Metric | C23 |
| 1 | 0.1UF 0.1uF | C_0402_1005Metric | C24 |
| 3 | 10UF 10uF | C_0402_1005Metric | C26, C29, C30 |
| 1 | 10NF 10nF | C_0201_0603Metric | C27 |
| 2 | 1M | R_0402_1005Metric | R1, R15 |
| 4 | 5.1K 5.1k | R_0402_1005Metric | R2, R4, R10, R11 |
| 2 | 0.2 | R_0402_1005Metric | R3, R16 |
| 1 | 1k | R_0201_0603Metric | R5 |
| 1 | 5.4K 5.4k | R_0402_1005Metric | R6 |
| 4 | 10K 10k | R_0402_1005Metric | R7, R12, R17, R18 |
| 1 | 2k | R_0402_1005Metric | R8 |
| 1 | 100 | R_0402_1005Metric | R9 |
| 1 | 0.01 | R_0402_1005Metric | R13 |
| 1 | 0 | R_0402_1005Metric | R14 |
50p spectra6 4 design files
The KiCad project lives in the StickyPix/Not-So-Sticky-Pix repository on GitHub; these links point at the commit this page was built from.
50p spectra6 4: common questions
What microcontroller does the 50p spectra6 4 use?
The 50p spectra6 4 is built around the NRF54L15-QFAA-R, from the Nordic nRF family.
How big is the 50p spectra6 4 PCB?
The 50p spectra6 4 measures 54.5 × 47.6 mm, has 4 copper layers and is 1.0192 mm thick.
How many components are on the 50p spectra6 4?
88 components, from 50 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 50p spectra6 4 design files?
From the StickyPix/Not-So-Sticky-Pix repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the 50p spectra6 4 design in my own project?
The repository has no license, so all rights stay with StickyPix. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the 50p spectra6 4 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.
More boards in Not-So-Sticky-Pix
Similar boards
Nordic nRF
TOTEM
GEIGEIGEIST
258.8 × 94.4 mm85 parts2LCERN-OHL-P-2.02.0kNordic nRF
Pixl.js
solosky
40 × 23 mm45 parts4LGPL-2.01.4kNordic nRF
Board
dennisss
363 × 128 mm420 parts4LApache-2.0381Nordic nRF
Board hl15-latest
dennisss
61 × 37 mm14 parts2LApache-2.0381Nordic nRF
Management
dennisss
101 × 31.5 mm50 parts2LApache-2.0381Nordic nRF
Mikoto
zhiayang
18 × 33.3 mm53 parts4LApache-2.0355