HardLabs

Usb to-M2-E

florolf·usb-to-M2-E

Usb to-M2-E PCB layout, top view — open source board by florolf
Simulate this board

About the Usb to-M2-E PCB

Usb to-M2-E is an open source PCB design by florolf, published on GitHub. It is a 2-layer board measuring 50 × 30 mm, with 21 components from 13 distinct parts.

Other key parts include the SRV05-4L-TP and TPS82140SIL. By type, the board carries 8 resistors, 6 capacitors, 2 ICs, 2 connectors, 2 inductors and 1 crystal.

It belongs with the iot & wireless and usb & debug tools designs in this gallery.

From the project

Possibly the most expensive Bluetooth dongle in existence

I wanted an USB Bluetooth dongle with support for recent Bluetooth versions (and LE Isochronous Channels in particular, while still supporting Bluetooth Classic) with Linux support that isn't excessively painful, which rules out basically every off-the-shelf dongle in existence.

Intel WiFi cards have excellent Bluetooth support, but they come in the form of M.2 cards which are meant to be installed internally. The aim of this project was to answer the question whether those cards would still work if only the Bluetooth component (which uses USB, unlike the WiFi part which attaches through…

Usb to-M2-E, from the project README
From the project README

Main components on the Usb to-M2-E

SRV05-4L-TPTPS82140SIL

Usb to-M2-E bill of materials (BOM)

21 components, 13 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SRV05-4L-TP
SRV05-4
Micro Commercial Co
U1
1
TPS82140SIL
TPS82140
Texas Instruments
U2
1
ECS-327KE-TR
32.768kHz
ECS Inc.
X1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
1
SM3ZS067U410AER1000
Bus_M.2_Socket_E
JAE Electronics
J2
2
2508051217Y6
120R @ 100MHz
Fair-Rite Products Corp.
FB1, FB2
3
100N
100n
C1, C3, C4
3
22U
22u
C2, C5, C6
2
5K1
5k1
R1, R2
3
10K
10k
R3, R5, R8
1
33R
R4
1
75K
75k
R6
1
24K
24k
R7

Usb to-M2-E design files

The KiCad project lives in the florolf/usb-to-M2-E repository on GitHub; these links point at the commit this page was built from.

Usb to-M2-E: common questions

How big is the Usb to-M2-E PCB?

The Usb to-M2-E measures 50 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Usb to-M2-E?

21 components, from 13 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 Usb to-M2-E design files?

From the florolf/usb-to-M2-E 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 Usb to-M2-E design in my own project?

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

Similar boards