HardLabs

DSMR-Splitter

basilfx·DSMR-Splitter·pcb/DSMR-Splitter.kicad_pcb

DSMR-Splitter PCB layout, top view — open source Silicon Labs board by basilfx
Simulate this board

About the DSMR-Splitter PCB

DSMR-Splitter is an open source Silicon Labs PCB design by basilfx, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 59.9 × 39.9 mm, with 53 components from 22 distinct parts.

Its main chip is the EFM32PG12B500, from the Silicon Labs family. Other key parts include the TPS76901, 74AHC1G126, 74AHCT1G04 and VOH1016AG-V. By type, the board carries 16 capacitors, 14 resistors, 13 ICs, 6 connectors, 3 diodes and 1 crystal.

From the project

Active port expander for the P1 port on a Dutch Smart Meter (DSMR).

Main components on the DSMR-Splitter

EFM32PG12B500TPS7690174AHC1G12674AHCT1G04VOH1016AG-V

DSMR-Splitter bill of materials (BOM)

53 components, 22 distinct parts.

QtyPartRefs
1
EFM32PG12B500
U1
1
TPS76901
U2
1
74AHC1G126
U3
4
74AHCT1G04
U4, U5, U8, U11
6
VOH1016AG-V
U6, U7, U9, U10, U12, U13
1
40MHz
Y1
1
JTAG
J1
1
UART
J2
1
IN
J3
1
OUT-A
J4
1
OUT-B
J5
1
OUT-C
J6
1
LED
D1
2
1N4148
D2, D3
11
100nF
C1, C3, C5, C6, C7, C8, C9, C10 +3
2
C_Polarized
C2, C4
2
20pF
C11, C12
1
1µF
C13
1
100
R1
7
1k
R2, R3, R4, R7, R8, R11, R12
Show 2 more
QtyPartRefs
3
2k2
R5, R9, R13
3
100k
R6, R10, R14

DSMR-Splitter design files

The KiCad project lives in the basilfx/DSMR-Splitter repository on GitHub; these links point at the commit this page was built from.

DSMR-Splitter: common questions

What microcontroller does the DSMR-Splitter use?

The DSMR-Splitter is built around the EFM32PG12B500, from the Silicon Labs family.

How big is the DSMR-Splitter PCB?

The DSMR-Splitter measures 59.9 × 39.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DSMR-Splitter?

53 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the DSMR-Splitter design files?

From the basilfx/DSMR-Splitter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the DSMR-Splitter design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the DSMR-Splitter without the hardware?

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

Similar boards