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Phase3-routed review

skywalker0507·remote-flash-probe-tscircuit·kicad/checkpoints/phase3-routed-review.kicad_pcb

Phase3-routed review PCB layout, top view — open source ESP32 board by skywalker0507

About the Phase3-routed review PCB

Phase3-routed review is an open source ESP32 PCB design by skywalker0507, published on GitHub. It is a 4-layer board measuring 92 × 48 mm, with 70 components from 34 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N16R8, from the ESP32 family. Other key parts include the USBLC6-2SC6, AP63203WU-7, TMUX1574PWR and TLV803EA26RDBZR. By type, the board carries 22 resistors, 15 diodes, 9 capacitors, 5 ICs, 5 transistors and 4 connectors.

It belongs with the iot & wireless designs in this gallery.

From the project

ESP32-S3 Wi-Fi remote STM32 flashing and logging probe. Tscircuit remains the declarative source for the schematic, exact footprints, BOM, and reviewed placement. Phase 3 routing is maintained in the KiCad project under kicad/.

ESP32-S3 Wi-Fi remote STM32 flashing and logging probe. Tscircuit remains the declarative source for the schematic, exact footprints, BOM, and reviewed placement. Phase 3 routing is maintained in the KiCad project under kicad/.

The first hardware revision supports self-powered 3.3 V targets only: VTREFIN` must be within 3.0 V to 3.6 V. VTREF is a sense/reference input and never powers the target. TMUX1574 is a bidirectional switch, not a level translator; 1.8 V and 5 V targets are not supported.

Main components on the Phase3-routed review

ESP32-S3-WROOM-1-N16R8USBLC6-2SC6AP63203WU-7TMUX1574PWRTLV803EA26RDBZR

Phase3-routed review bill of materials (BOM)

70 components, 34 distinct parts.

QtyPartRefs
1
ESP32-S3-WROOM-1-N16R8
U1
1
USBLC6-2SC6
U2
1
AP63203WU-7
U3
1
TMUX1574PWR
U4
1
TLV803EA26RDBZR
U5
3
2N7002LT1G
Q1, Q3, Q4
1
AO3401A
Q2
1
AO3400A
Q5
1
J1
J1
1
J2
J2
1
J3
J3
1
J4
J4
1
F1
F1
4
—
H1, H2, H3, H4
1
SW1
SW1
1
SW2
SW2
1
LTST-C190KGKT
LED1
1
LTST-C190TBKT
LED2
1
D
D1
14
D
D2, D3, D4, D5, D6, D7, D8, D9 +6
Show 14 more
QtyPartRefs
1
4.7µH
L1
3
100nF
C1, C5, C8
2
10uF
C2, C4
1
1uF
C3
2
22uF
C6, C7
1
4.7nF
C9
3
10kΩ
R1, R7, R18
2
5.1kΩ
R2, R3
2
22Ω
R4, R5
1
0Ω
R6
2
47Ω
R8, R9
4
1kΩ
R10, R11, R19, R20
6
100kΩ
R12, R13, R14, R15, R21, R22
2
1MΩ
R16, R17

Phase3-routed review design files

The KiCad project lives in the skywalker0507/remote-flash-probe-tscircuit repository on GitHub; these links point at the commit this page was built from.

Phase3-routed review: common questions

What microcontroller does the Phase3-routed review use?

The Phase3-routed review is built around the ESP32-S3-WROOM-1-N16R8, from the ESP32 family.

How big is the Phase3-routed review PCB?

The Phase3-routed review measures 92 × 48 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Phase3-routed review?

70 components, from 34 distinct parts. The full bill of materials is listed on this page.

Where can I download the Phase3-routed review design files?

From the skywalker0507/remote-flash-probe-tscircuit repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Phase3-routed review design in my own project?

The repository has no license, so all rights stay with skywalker0507. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Phase3-routed review without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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