HardLabs

Whofi

jedarden-org·whofi·repos/ESP32Marauder/PCBs/FlipperZero/WiFi-Devboard-Pro/WiFi-Devboard-Pro.kicad_pcb

Whofi PCB layout, top view — open source ESP32 board by jedarden-org

About the Whofi PCB

Whofi is an open source ESP32 PCB design by jedarden-org, published on GitHub under the MIT license. It is a 2-layer board measuring 78.5 × 20.1 mm, with 45 components from 22 distinct parts.

Its main chip is the ESP32-WROOM-32E-N4, from the ESP32 family. Other key parts include the DMP1045U-7, AZ1117H-3.3TRE1 and MMDT2907A-7-F. By type, the board carries 15 resistors, 11 capacitors, 8 ICs, 5 connectors, 4 LEDs and 2 switches.

It belongs with the iot & wireless and dev boards & breakouts designs in this gallery.

From the project

Research on WiFi CSI (channel state information) indoor positioning with ESP32 — what 2.4 GHz CSI can and cannot do for device-free presence and location. Research code and notes, not a working product.

- Header Pin x8: C2883805 - Header Pin x10: C2883807 - Alternative Header: M20-8771246 - or M20-8771042 - Light Pipe: PLP2-188 - M2x6mm Round Top Screw: 97763A407 - M2x8mm Countersunk Screw: 91294A005 - M2 Threaded Insert: 94180A307

Main components on the Whofi

ESP32-WROOM-32E-N4DMP1045U-7AZ1117H-3.3TRE1MMDT2907A-7-F

Whofi bill of materials (BOM)

45 components, 22 distinct parts.

QtyPartRefs
1
ESP32-WROOM-32E-N4
IC1
3
DMP1045U-7
IC2, IC4, IC5
1
AZ1117H-3.3TRE1
IC3
3
MMDT2907A-7-F
U1, U2, U3
1
3220-10-0300-00
J1
1
DZ254S-11-10-48
J3
2
Conn_01x11
J4, J5
1
503398-1892
J6
2
SKRPABE010
S1, S2
1
WS2812B-2020
LED1
1
19-217/Y5C-AP1Q2/3T
TX
LED2
1
19-217/Y5C-AP1Q2/3T
RX
LED3
1
19-217/R6C-AL1M2VY/3T
3V3
LED4
1
CL05A105KA5NQNC
1u
C1
2
CM05X5R226M06AH080
22uF
C2, C5
6
CL05B104KO5NNNC
100n
C3, C7, C8, C9, C10, C11
1
CC0402KRX7R7BB104
100nF
C4
1
CL05A106MQ5NUNC
10uF
C6
2
RC0402FR-0710KL
10k
R1, R6
1
RC0402FR-07220RL
220
R2
Show 2 more
QtyPartRefs
6
RC0402FR-071KL
1K
R3, R4, R5, R13, R14, R15
6
RC0402FR-07100KL
100K
R7, R8, R9, R10, R11, R12

Whofi design files

The KiCad project lives in the jedarden-org/whofi repository on GitHub; these links point at the commit this page was built from.

Whofi: common questions

What microcontroller does the Whofi use?

The Whofi is built around the ESP32-WROOM-32E-N4, from the ESP32 family.

How big is the Whofi PCB?

The Whofi measures 78.5 × 20.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Whofi?

45 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the Whofi design files?

From the jedarden-org/whofi repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Whofi design in my own project?

Yes, under the terms of its MIT license, which jedarden-org chose for the repository.

Can I test firmware for the Whofi 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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