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Micromouse pcb simplified

MukeshSethy·micromouse-runner·pcb/JLCPCB_2layers_simplified/xiao_linefollower/design/micromouse-pcb-simplified.kicad_pcb

Micromouse pcb simplified layout, top view — open source Nordic nRF board by MukeshSethy

About the Micromouse pcb simplified

Micromouse pcb simplified is an open source Nordic nRF PCB design by MukeshSethy, published on GitHub. It is a 4-layer board measuring 100 × 120 mm, with 125 components from 44 distinct parts.

Its main chip is the XIAO-nRF52840-Plus-SMD, from the Nordic nRF family. Other key parts include the AP63203WU-7, TB6612FNG,C,8,EL, TSSOP-16_4.4x5mm_P0.65mm, SOIC-16W_7.5x10.3mm_P1.27mm and SOT-23-6. By type, the board carries 46 resistors, 23 diodes, 19 transistors, 18 capacitors, 6 ICs and 5 switches.

It belongs with the sensors, robotics & motion and iot & wireless designs in this gallery.

From the project

This is my repo for the first version of full size micromouse development.

A competition-style micromouse robot on a custom 100 × 120 mm, 4-layer KiCad 10 PCB: ESP32-S3 module doing all control + wireless telemetry, a 2S power tree with a regulated 6 V motor rail, a BNO055 9-axis IMU, research- verified sensor geometry, and a fully script-generated, fully autorouted design.

Top — sensors, module, connectors (motor plugs go straight into J5/J6):

Micromouse pcb simplified, from the project README
From the project README

Main components on the Micromouse pcb simplified

AP63203WU-7TB6612FNG,C,8,ELXIAO-nRF52840-Plus-SMDTSSOP-16_4.4x5mm_P0.65mmSOIC-16W_7.5x10.3mm_P1.27mmSOT-23-6

Micromouse pcb simplified bill of materials (BOM)

125 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AP63203WU-7
TSOT-23-6
Diodes Incorporated
U1
1
TB6612FNG,C,8,EL
SSOP-24_5.3x8.2mm_P0.65mm
Toshiba
U2
1
102010694 (Seeed XIAO nRF52840 Sense Plus -- HAND-SOLDER, NOT part of turnkey SMT assembly)
XIAO-nRF52840-Plus-SMD
Seeed Studio
U3
1
TSSOP-16_4.4x5mm_P0.65mm
U4
1
SOIC-16W_7.5x10.3mm_P1.27mm
U5
1
SOT-23-6
U7
1
DMP3098L-7
SOT-23
Diodes Incorporated
Q1
6
PT334-6B
LED_D5.0mm_IRBlack
Everlight
Q2, Q3, Q4, Q5, Q6, Q7
3
BSS138LT1G
SOT-23
onsemi
Q16, Q17, Q18
1
MMBT2222A-7-F
SOT-23
Diodes Incorporated
Q34
8
VAL
Q41, Q42, Q43, Q44, Q45, Q46, Q47, Q48
1
B2B-XH-A
JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical
JST
J1
2
B6B-ZR(LF)(SN)
JST_ZH_B6B-ZR_1x06_P1.50mm_Vertical
JST
J5, J6
1
XT60-M
AMASS_XT60-M_1x02_P7.20mm_Vertical
AMASS
J10
1
CMT-8504-100-SMT-TR
MagneticBuzzer_CUI_CMT-8504-100-SMT
Same Sky (CUI Devices)
BZ1
1
MINISMDC260F/16-2
Fuse_1812_4532Metric
Littelfuse
F1
2
KMR221NGLFS
SW_Push_1P1T_NO_CK_KMR2
C&K
SW1, SW2
2
PCM12SMTR
SW_SPDT_PCM12
C&K
SW5, SW6
1
SW_SPDT_PCM12
SW7
6
IR333-A
LED_D5.0mm_IRGrey
Everlight
D1, D2, D3, D4, D5, D6
Show 24 more
QtyPartRefs
1
1N4148W-7-F
D_SOD-123
Diodes Incorporated
D29
1
APT1608SURCK
LED_0603_1608Metric
Kingbright
D30
9
LED_0603_1608Metric
D33, D41, D42, D43, D44, D45, D46, D47 +1
6
APT1608SGC
D50, D51, D52, D53, D54, D55
1
SRP4020TA-4R7M
4.7uH
Bourns
L1
1
4.7uH
L2
3
CL32B106KBJNNNE
10uF/25V
Samsung Electro-Mechanics
C1, C4, C11
4
CL21B104KBCNNNC
100nF
Samsung Electro-Mechanics
C2, C3, C12, C14
1
CL21A226KPCLRNC
22uF
Samsung Electro-Mechanics
C5
1
CL21B104KBCNNNC
C_0805_2012Metric
Samsung Electro-Mechanics
C8
1
CL21A226KPCLRNC
C_0805_2012Metric
Samsung Electro-Mechanics
C10
1
100nF
C15
2
22uF/25V
C16, C17
1
10uF/25V
C18
1
220uF/16V
C30
3
C_0805_2012Metric
C40, C41, C50
5
CFR-25JB-52-100K
R_0805_2012Metric
Yageo
R1, R62, R63, R64, R69
20
R_0805_2012Metric
R6, R7, R8, R9, R70, R71, R73, R74 +12
6
CFR-25JB-52-47K
R_0805_2012Metric
Yageo
R13, R15, R17, R19, R21, R23
6
CFR-25JB-52-33R
R_0805_2012Metric
Yageo
R14, R16, R18, R20, R22, R24
1
CFR-25JB-52-10K
R_0805_2012Metric
Yageo
R55
1
CFR-25JB-52-220R
R_0805_2012Metric
Yageo
R81
1
CFR-25JB-52-1K
R_0805_2012Metric
Yageo
R82
6
220
R105, R106, R107, R108, R109, R110

Micromouse pcb simplified design files

The KiCad project lives in the MukeshSethy/micromouse-runner repository on GitHub; these links point at the commit this page was built from.

Micromouse pcb simplified: common questions

What microcontroller does the Micromouse pcb simplified use?

The Micromouse pcb simplified is built around the XIAO-nRF52840-Plus-SMD, from the Nordic nRF family.

How big is the Micromouse pcb simplified?

The Micromouse pcb simplified measures 100 × 120 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Micromouse pcb simplified?

125 components, from 44 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 Micromouse pcb simplified design files?

From the MukeshSethy/micromouse-runner 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 Micromouse pcb simplified design in my own project?

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

Can I test firmware for the Micromouse pcb simplified 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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