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Feather rak3172

teapotlaboratories·feather-rak3172·hardware/kicad/feather_rak3172.kicad_pcb

Feather rak3172 PCB layout, top view — open source board by teapotlaboratories
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About the Feather rak3172 PCB

Feather rak3172 is an open source PCB design by teapotlaboratories, published on GitHub under the MIT license. It is a 2-layer board measuring 51 × 23.1 mm, with 44 components from 31 distinct parts.

Other key parts include the RAK3172, CH340E, MCP73831T-2ACI/OT and XC6220B331MR-G. By type, the board carries 11 capacitors, 10 resistors, 6 connectors, 6 jumpers, 4 ICs and 3 diodes.

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

From the project

Teapotlabs Feather RAK3172: Low-cost Low-power LoRaWAN Development Board

Teapotlabs Feather RAK3172 a Low-cost, Low-power LoRaWAN development board that breaks out RAKwireless RAK3172 to an Adafruit Feather-compatible format.

Based on the RAK3172, a STM32WLE5CC based module with ARM Cortex M4 processor, 48 MHz and 3.3V logic. The chip has a 256K of flash and 64K of RAM. With low-power application in mind, the board is capable to be in sleep mode for as low as 11uA, it also has a built-in voltage divider to sense battery voltage and battery charger.

Feather rak3172, from the project README
From the project README

Main components on the Feather rak3172

RAK3172CH340EMCP73831T-2ACI/OTXC6220B331MR-G

Feather rak3172 bill of materials (BOM)

44 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RAK3172
RAKwireless
U1
1
CH340E
WCH
U2
1
MCP73831T-2ACI/OT
Microchip
U3
1
XC6220B331MR-G
Torex Semiconductor
U4
1
DMG3415UQ-7
Diodes Incorporated
Q1
1
DNP
-
J1
1
DNP
-
J2
1
U262-161N-4BVC11
USB_C_Receptacle_USB2.0
XKB Connectivity
J3
1
SMA-KE-P903
DreamLNK
J4
1
SWD
J5
1
JST-PH S2B-PH-SM4-TB
JST-2PH
JST
J6
2
ENBATTMON
JP1, JP4
1
ENLED
JP2
1
ENCH340
JP3
1
ENTXD
JP5
1
ENRXD
JP6
1
B3U-1000P
RESET
Omron Electronics
SW1
1
B3U-1000P
BOOT
Omron Electronics
SW2
1
19-217/BHC-ZL1M2RY/3T
BLUE
Everlight Elec
D1
1
Orange 2V 25mA
ORANGE
EKINGLUX
D2
Show 11 more
QtyPartRefs
1
B5819W
GOODWORK
D3
1
RC0402JR-070RL
0
YAGEO
L1
4
CC0603KRX7R6BB104
100n
YAGEO
C1, C4, C7, C11
2
DNP
-
C2, C5
2
CL10A106KP8NNNC
10u
Samsung Electro-Mechanics
C3, C6
3
CL21A106KPFNNNE
10u
Samsung Electro-Mechanics
C8, C9, C10
3
C2907113
1K
FOJAN
R1, R2, R6
3
RC0603FR-075K1L
5.1K
YAGEO
R3, R4, R5
2
RC0603JR-0710KL
10K
YAGEO
R7, R8
1
0603WAF4704T5E
4.7M
UNI-ROYAL(Uniroyal Elec)
R9
1
0603WAF1005T5E
10M
UNI-ROYAL(Uniroyal Elec)
R10

Feather rak3172 design files

The KiCad project lives in the teapotlaboratories/feather-rak3172 repository on GitHub; these links point at the commit this page was built from.

Feather rak3172: common questions

How big is the Feather rak3172 PCB?

The Feather rak3172 measures 51 × 23.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Feather rak3172?

44 components, from 31 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 Feather rak3172 design files?

From the teapotlaboratories/feather-rak3172 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 Feather rak3172 design in my own project?

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

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