HardLabs

Remote flash probe

skywalker0507·remote-flash-probe-tscircuit·kicad/remote-flash-probe.kicad_pcb

Remote flash probe PCB layout, top view — open source ESP32 board by skywalker0507

About the Remote flash probe PCB

Remote flash probe 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 Remote flash probe

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

Remote flash probe 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

Remote flash probe 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.

Remote flash probe: common questions

What microcontroller does the Remote flash probe use?

The Remote flash probe is built around the ESP32-S3-WROOM-1-N16R8, from the ESP32 family.

How big is the Remote flash probe PCB?

The Remote flash probe measures 92 × 48 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Remote flash probe?

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

Where can I download the Remote flash probe design files?

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

Can I use the Remote flash probe 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 Remote flash probe 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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