RoyalNode
About the RoyalNode PCB
RoyalNode is an open source Nordic nRF PCB design by jb66dmg52h-dotcom, published on GitHub. It is a 4-layer board measuring 97 × 87 mm, with 71 components from 43 distinct parts.
Its main chip is the XIAO nRF52840 socket C53202181 RC, from the Nordic nRF family. Other key parts include the BQ25798RQMR, LM66100DCKR, TPS61088RHLR, LTC4365 TSOT-23-8 RC and E22-900M33S. By type, the board carries 34 capacitors, 18 resistors, 6 connectors, 4 ICs, 3 transistors and 2 modules.
From the project
This folder contains the Git-tracked KiCad design for RoyalNode Rev A.
This folder contains the Git-tracked KiCad design for RoyalNode Rev A.
- KiCad 10.0 project scaffold created. - Root schematic is intentionally a capture placeholder. - PCB file contains the Rev A board outline, placement zones, RF corridor, and keepout notes. - Project-local symbols have been started in RoyalNode/libsymbols/RoyalNode.kicadsym. - Footprint release is controlled by RoyalNode/libfootprints/FOOTPRINTRELEASEMATRIXREVA.md. - Schematic capture should follow RoyalNode/SCHEMATICCAPTURESEEDREVA.csv. - Footprints, schematic nets, and routed copper still need to be captured from…
Main components on the RoyalNode
RoyalNode bill of materials (BOM)
71 components, 43 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BQ25798RQMR BQ25798 RQM0029A RC Texas Instruments | U1_BQ25798_RQM0029A_RC | U1 |
| 1 | LM66100DCKR LM66100 DCK0006A SC70-6 RC Texas Instruments | U2_LM66100_DCK0006A_SC70_6_RC | U2 |
| 1 | TPS61088RHLR TPS61088 RHL0020A thermal vias RC Texas Instruments | U3_TPS61088_RHL0020A_THERMALVIAS_RC | U3 |
| 1 | LTC4365 TSOT-23-8 RC Analog Devices | U4_LTC4365_TSOT23_8_RC | U4 |
| 1 | XIAO nRF52840 socket C53202181 RC Seeed Studio | MOD1_XIAO_NRF52840_SOCKET_C53202181_RC | MOD1 |
| 1 | E22-900M33S E22-900M33S C22399506 RC EBYTE | MOD2_E22_900M33S_JLC_C22399506_RC | MOD2 |
| 3 | ISA170170N04LMDSXTMA1 Infineon PG-DSO-8-27 thermal vias RC Infineon | Q_POWER_INFINEON_PG_DSO_8_27_RC | Q1, Q2, Q3 |
| 2 | XT30PW-M XT30PW-M C431092 RC AMASS | J_POWER_XT30PW_M_C431092_RC | J1, J2 |
| 2 | J_LOW_JST_GH_SM02B_GHS_TB_RC JST | J_LOW_JST_GH_SM02B_GHS_TB_RC | J3, J4 |
| 1 | 0732511150 SMA edge envelope Molex | J5_SMA_0732511150_DRAFT_ENVELOPE | J5 |
| 1 | J_LOW_JST_GH_SM04B_GHS_TB_RC JST | J_LOW_JST_GH_SM04B_GHS_TB_RC | J6 |
| 1 | 0483005.DR Littelfuse 0483005.DR 1206 RC Littelfuse | F1_LITTELFUSE_483_1206_RC | F1 |
| 1 | KT-0603R KT-0603R red LED Hubei KENTO Elec | LED_0603_1608Metric | D1 |
| 1 | XAL7070-222MEC XAL7070-222MEC RC Coilcraft | L1_COILCRAFT_XAL7070_222MEC_RC | L1 |
| 1 | XAL7030-222MEC XAL7030-222MEC RC Coilcraft | L2_COILCRAFT_XAL7030_222MEC_RC | L2 |
| 12 | 10 uF 50 V | C_1206_3216Metric | C200, C201, C202, C203, C204, C205, C206, C207 +4 |
| 4 | 100 nF 50 V | C_0603_1608Metric | C212, C213, C214, C404 |
| 1 | 4.7 uF 25 V | C_0805_2012Metric | C215 |
| 2 | 47 nF 50 V | C_0603_1608Metric | C216, C217 |
| 1 | 1 nF 50 V | C_0603_1608Metric | C218 |
Show 23 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 22 uF 16 V | C_1210_3225Metric | C400, C401, C500, C501 |
| 2 | 47 uF 10 V | C_1210_3225Metric | C402, C403 |
| 1 | 2.2 uF | C_0805_2012Metric | C405 |
| 1 | 100 nF | C_0603_1608Metric | C406 |
| 1 | 47 nF | C_0603_1608Metric | C407 |
| 1 | 4.7 nF | C_0603_1608Metric | C408 |
| 1 | 1 uF 16 V | C_0805_2012Metric | C502 |
| 1 | 330 uF 10 V polymer | C503_PANASONIC_10SVPC330M_8X6P9_RC | C503 |
| 2 | 100 nF 16 V | C_0603_1608Metric | C504, C505 |
| 1 | 1.78 MOhm 1% | R_0603_1608Metric | R100 |
| 1 | 180 kOhm 0.1% | R_0603_1608Metric | R101 |
| 1 | 40.2 kOhm 0.1% | R_0603_1608Metric | R102 |
| 3 | 100 kOhm | R_0603_1608Metric | R103, R403, R405 |
| 1 | 5.23 kOhm 1% | R_0603_1608Metric | R200 |
| 1 | 30.1 kOhm 1% | R_0603_1608Metric | R201 |
| 1 | 100 Ohm | R_0603_1608Metric | R202 |
| 1 | 4.70 kOhm 1% | R_0603_1608Metric | R203 |
| 3 | 10 kOhm | R_0603_1608Metric | R204, R205, R206 |
| 1 | 2.2 kOhm 1% | R_0603_1608Metric | R207 |
| 1 | 176 kOhm 0.1% | R_0603_1608Metric | R400 |
| 1 | 56.0 kOhm 0.1% | R_0603_1608Metric | R401 |
| 1 | 330 kOhm | R_0603_1608Metric | R402 |
| 1 | 20.0 kOhm | R_0603_1608Metric | R404 |
RoyalNode design files
The KiCad project lives in the jb66dmg52h-dotcom/RoyalNode repository on GitHub; these links point at the commit this page was built from.
RoyalNode: common questions
What microcontroller does the RoyalNode use?
The RoyalNode is built around the XIAO nRF52840 socket C53202181 RC, from the Nordic nRF family.
How big is the RoyalNode PCB?
The RoyalNode measures 97 × 87 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the RoyalNode?
71 components, from 43 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 RoyalNode design files?
From the jb66dmg52h-dotcom/RoyalNode 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 RoyalNode design in my own project?
The repository has no license, so all rights stay with jb66dmg52h-dotcom. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the RoyalNode 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.
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