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ESP32-WROOM-32E + CC1101 Multiband

bdini13·esp32-cc1101-multiband·hardware/routing/A3-before-crystal-refinement.kicad_pcb

ESP32-WROOM-32E + CC1101 Multiband PCB layout, top view — open source ESP32 board by bdini13
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About the ESP32-WROOM-32E + CC1101 Multiband PCB

ESP32-WROOM-32E + CC1101 Multiband is an open source ESP32 PCB design by bdini13, published on GitHub under the Custom license license. It is a 4-layer board measuring 90 × 36 mm, with 105 components from 59 distinct parts.

Its main chip is the ESP32-WROOM-32E-N8, from the ESP32 family. Other key parts include the CC1101RGPR, PE42442A-Z, CP2102N-A02-GQFN24, AP63203WU-7 and TPS22918DBVR. By type, the board carries 43 capacitors, 23 resistors, 15 inductors, 8 ICs, 5 diodes and 4 connectors.

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

From the project

Work-in-progress ESP32-WROOM-32E + CC1101 multiband PCB: software-selected 315/433/868/915 MHz paths. AI-assisted engineering draft; not manufacturing-ready.

A custom USB-C development board combining an ESP32-WROOM-32E-N8 with an integrated CC1101 sub-GHz radio, software-selected RF paths, and a vertical SMA antenna connector at the opposite end from USB-C.

Rev A3 · Fully connected review candidate · Not approved to manufacture or sell

The aim is to replace a separate ESP32 board, CC1101 breakout and jumper wires with one purpose-built PCB. The first intended build is five assembled engineering prototypes, after the pre-order checks are complete. Possible product sales are a future option, not a launch announcement.

ESP32-WROOM-32E + CC1101 Multiband, from the project README
From the project README

Main components on the ESP32-WROOM-32E + CC1101 Multiband

ESP32-WROOM-32E-N8CC1101RGPRPE42442A-ZCP2102N-A02-GQFN24AP63203WU-7TPS22918DBVRSN74LVC2G125DCTR

ESP32-WROOM-32E + CC1101 Multiband bill of materials (BOM)

105 components, 59 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32E-N8
U1
1
CC1101RGPR
U2
2
PE42442A-Z
U3, U4
1
CP2102N-A02-GQFN24
U5
1
AP63203WU-7
U6
1
TPS22918DBVR
U7
1
SN74LVC2G125DCTR
U8
2
MMBT3904
Q1, Q2
1
ABM8-26.000MHZ-10-1-U-T
Y1
1
USB-C USB2.0
J1
1
SMA FEMALE VERTICAL 50 OHM
J2
1
EXPANSION (DNP)
J3
1
POWER ARM AUTO / EXT
J4
1
B0310J50100AHF
B1
1
750mA PTC
F1
1
RESET
SW1
1
BOOT
SW2
1
USBLC6-2SC6
D1
1
PESD5V0S1UL
D2
1
STATUS GREEN
D3
Show 39 more
QtyPartRefs
1
POWER GREEN
D4
1
RF ESD DNP
D5
1
600R@100MHz
FB1
1
4.7uH XAL4030
L1
1
3.3nH 5%
L40
1
6.8nH 5%
L41
3
10nH 5%
L42, L44, L51
5
0R
L43, L46, L47, L49, L50
1
3.6nH 5%
L45
1
15nH 5%
L48
1
2.2nH 5%
L52
3
22uF 25V
C1, C2, C13
2
4.7UF
4.7uF
C3, C9
15
100NF
100nF
C4, C6, C7, C12, C14, C21, C22, C23 +7
1
4.7nF 1kV
C5
1
DNP
C8
1
1UF
1uF
C10
2
10UF
10uF
C11, C20
2
15pF C0G
C31, C32
2
100pF C0G
C40, C41
1
0.6pF C0G
C42
8
DNP
C43, C46, C48, C50, C51, C52, C53, C54
1
1.2pF C0G
C44
1
8pF C0G
C45
1
10pF C0G
C47
1
6.2pF C0G
C49
1
10NF
10nF
C70
2
5.1k 1%
R1, R2
1
1k
R3
1
1M
R4
1
22.1k 1%
R5
1
47.5k 1%
R6
5
10K
10k
R10, R11, R20, R21, R70
2
330R 1%
R12, R13
1
56k 1%
R30
5
10k pullup
R31, R32, R33, R34, R35
1
0R
R41
2
49.9R 1%
R60, R61
1
100K
100k
R71

ESP32-WROOM-32E + CC1101 Multiband design files

The KiCad project lives in the bdini13/esp32-cc1101-multiband repository on GitHub; these links point at the commit this page was built from.

ESP32-WROOM-32E + CC1101 Multiband: common questions

What microcontroller does the ESP32-WROOM-32E + CC1101 Multiband use?

The ESP32-WROOM-32E + CC1101 Multiband is built around the ESP32-WROOM-32E-N8, from the ESP32 family.

How big is the ESP32-WROOM-32E + CC1101 Multiband PCB?

The ESP32-WROOM-32E + CC1101 Multiband measures 90 × 36 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ESP32-WROOM-32E + CC1101 Multiband?

105 components, from 59 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 ESP32-WROOM-32E + CC1101 Multiband design files?

From the bdini13/esp32-cc1101-multiband repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the ESP32-WROOM-32E + CC1101 Multiband design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

Can I test firmware for the ESP32-WROOM-32E + CC1101 Multiband 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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