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Null

jadenvv·NULL·null_elec/null.kicad_pcb

Null PCB layout, top view — open source ESP32 board by jadenvv
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About the Null PCB

Null is an open source ESP32 PCB design by jadenvv, published on GitHub. It is a 4-layer board measuring 40.5 × 80.2 mm, with 121 components from 65 distinct parts.

Its main chip is the ESP32-S3, from the ESP32 family. Other key parts include the TRF7970ARHBR, W25Q32JVSS, TSOP343xx, SX1262IMLTRT and PE4259. By type, the board carries 60 capacitors, 26 resistors, 9 ICs, 8 inductors, 5 switches and 3 crystals.

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

From the project

A version of a flipperzero that has the same capabilities of Sub-GHz RF, IR, Wifi, and NFC/RFID

Null, from the project README
From the project README

Main components on the Null

TRF7970ARHBRW25Q32JVSSESP32-S3TSOP343xxSX1262IMLTRTPE4259NCP1117-3.3_SOT223TPS61222DCKAPS6404L-3SQRx-SN

Null bill of materials (BOM)

121 components, 65 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TRF7970ARHBR
IC1
1
W25Q32JVSS
U1
1
ESP32-S3
U2
1
TSOP343xx
U3
1
SX1262IMLTRT
U5
1
PE4259
U6
1
NCP1117-3.3_SOT223
U7
1
TPS61222DCK
U8
1
APS6404L-3SQRx-SN
U9
1
PN2222A
Q1
1
40MHz
Y1
1
32MHz
Y2
1
27.12MHz
Y3
1
USB_C_Receptacle_USB2.0_14P
J1
1
Antenna
AE1
1
Antenna
AE3
1
0.950uH
AE4
1
0900FM15K0039
FL1
1
SW_SPST
SW1
4
SW_Push
SW2, SW3, SW4, SW5
Show 45 more
QtyPartRefs
1
OLED-128O064D
DS1
1
IR26-21C_L110_TR8
D1
1
ESD9B3.3ST5G
D2
1
1N4148
D3
1
2.0nH
L1
1
150nH
L2
2
15uH
L3, L4
1
9.1nH
L5
1
2.6nH
L6
1
330nH
L7
1
4.7uH
L8
5
10uF
C1, C4, C20, C21, C60
5
1uF
C2, C14, C28, C29, C32
1
10nF
C3
3
1nF
C5, C11, C22
6
0.1uF
C6, C7, C8, C9, C10, C30
2
12pF
C12, C13
2
100nF
C15, C16
3
470nF
C17, C18, C19
1
39pF
C23
2
3.3pF
C24, C25
1
4.7uF
C26
2
10uF
C27, C57
1
2uF
C31
5
2.2uF
C33, C39, C41, C46, C58
5
0.01uF
C34, C40, C42, C47, C59
2
1.6pF
C35, C36
3
27pF
C37, C38, C54
2
1500uF
C43, C44
2
1200pF
C45, C48
2
680pF
C49, C52
1
10pF
C50
1
220pF
C51
1
120pF
C53
1
82pF
C55
1
68pF
C56
6
0
R1, R2, R3, R5, R6, R22
11
10K
R4, R14, R15, R16, R18, R19, R20, R21 +3
2
5.1K
R7, R8
2
22
R9, R11
1
100
R10
1
50
R12
1
665
R13
1
390K
R17
1
750
R23

Null design files

The KiCad project lives in the jadenvv/NULL repository on GitHub; these links point at the commit this page was built from.

Null: common questions

What microcontroller does the Null use?

The Null is built around the ESP32-S3, from the ESP32 family.

How big is the Null PCB?

The Null measures 40.5 × 80.2 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Null?

121 components, from 65 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 Null design files?

From the jadenvv/NULL 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 Null design in my own project?

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

Can I test firmware for the Null 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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