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RF-to-USB

RemiFM·RF-to-USB·hardware/RF-to-USB.kicad_pcb

RF-to-USB PCB layout, top view — open source STM32 board by RemiFM
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About the RF-to-USB PCB

RF-to-USB is an open source STM32 PCB design by RemiFM, published on GitHub under the MIT license. It is a 4-layer board measuring 50 × 20 mm, with 52 components from 36 distinct parts.

Its main chip is the STM32L432KBUX, from the STM32 family. Other key parts include the NRF24L01P, XC6206P332MR, USBLC6-2SC6 and 1568-LCD-24177. By type, the board carries 26 capacitors, 8 resistors, 5 ICs, 4 inductors, 3 connectors and 2 switches.

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

From the project

RF-to-USB dongle with OLED Display

STM32L4-based RF-to-USB dongle using the NRF24 2.4 GHz transceiver. The board includes a USB-A connector on one side and a female SMA antenna connector on the other. It is a 4-layer PCB created using KiCad 9.0 measuring 50 mm x 20 mm.

The schematic (PDF) can be found under documentation/schematic.pdf The manufacturing Gerber files can be found under hardware/production The bill of materials (BOM) can be found under hardware/RF-to-USB_BOM.csv or through the following Digi-Key list. ## Acknowledgements

RF-to-USB, from the project README
From the project README

Main components on the RF-to-USB

NRF24L01PSTM32L432KBUXXC6206P332MRUSBLC6-2SC61568-LCD-24177

RF-to-USB bill of materials (BOM)

52 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NRF24L01P
nRF24L01P
U1
1
STM32L432KBUX
STM32L432KBUx
U2
1
XC6206P332MR
U3
1
USBLC6-2SC6
U4
1
1568-LCD-24177
OLED Display
U5
1
16MHZ
16MHz
Y1
1
WM3983
USB_A
J1
1
900-0732511153
SMA-F
J2
1
1528-2827
ARM SWD
J3
1
100MA
100mA
F1
1
BTN1
SW1
1
BTN2
SW2
1
732-4971-1
GR
D1
1
732-4981-1
YE
D2
1
445-MPZ2012S101AT000
100 @ 100MHz
FB1
1
8N2
8n2
L1
1
2N7
2n7
L2
1
3N9
3n9
L3
2
10U
10u
C1, C2
5
1u
C3, C19, C20, C23, C24
Show 16 more
QtyPartRefs
6
100N
100n
C4, C5, C6, C7, C25, C26
1
10U
10u
C8
3
10N
10n
C9, C10, C11
1
33N
33n
C12
1
1P5
1p5
C13
1
1p
C14
1
2N2
2n2
C15
1
4P7
4p7
C16
2
12P
12p
C17, C18
2
2U2
2u2
C21, C22
1
10K
10k
R1
2
2K2
2k2
R2, R3
1
22K
22k
R4
1
1M
R5
1
390K
390k
R6
2
4K7
4k7
R7, R8

RF-to-USB design files

The KiCad project lives in the RemiFM/RF-to-USB repository on GitHub; these links point at the commit this page was built from.

RF-to-USB: common questions

What microcontroller does the RF-to-USB use?

The RF-to-USB is built around the STM32L432KBUX, from the STM32 family.

How big is the RF-to-USB PCB?

The RF-to-USB measures 50 × 20 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the RF-to-USB?

52 components, from 36 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 RF-to-USB design files?

From the RemiFM/RF-to-USB 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 RF-to-USB design in my own project?

Yes, under the terms of its MIT license, which RemiFM chose for the repository.

Can I test firmware for the RF-to-USB without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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