TMC-LZ210-Command-Station

tmc-digiboys·TMC-LZ210-Command-Station-PCB·Kicad/V2.3/TMC-Centrale-V2.3.kicad_pcb

About the TMC-LZ210-Command-Station PCB

TMC-LZ210-Command-Station is an open source RP2040/RP2350 PCB design by tmc-digiboys, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 180 × 90 mm, with 110 components from 74 distinct parts.

Its main chip is the RASPBERRYPI_PICO2_MODULE-RP2350B-XXL-OLIMEX, from the RP2040/RP2350 family. Other key parts include the LM4040LP-3, 5V Step down Module, 12V Step down Module, MODULE-W5500 and MAX3485. By type, the board carries 47 resistors, 22 connectors, 12 capacitors, 10 ICs, 9 diodes and 6 transistors.

It belongs with the robotics & motion designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

Printed Circuit Board for the TMC-LZ210

Modular DCC command station with Ethernet and USB connectivity, and (partial) support for the XpressNet and Z21 protocols. The board supports LocoNet-T and XpressNet handhelds and other equipment, provides an interface for external boosters via CDE and LocoNet-B, and has a connection for RS-Bus feedback modules.

The starting point is a modular design, similar to the Z21PG. Initially we looked at whether we could simply adapt or replicate this design. We quickly realised that upgrading to a modern processor and ready-made modules would lead to better results and a lower price.

TMC-LZ210-Command-Station, from the project README — From the project README

Main components on the TMC-LZ210-Command-Station

RASPBERRYPI_PICO2_MODULE-RP2350B-XXL-OLIMEX LM4040LP-3 5V Step down Module 12V Step down Module MODULE-W5500 MAX3485 DRV8874 DRV8876 DRV8874/8876 LM393

TMC-LZ210-Command-Station bill of materials (BOM)

110 components, 74 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	RASPBERRYPI_PICO2_MODULE-RP2350B-XXL-OLIMEX RaspberryPi_Pico2_Module-RP2350B-XXL-Olimex	Module-RP2350B-XXL-Olimex	U201
1	LM4040LP-3	TO-92_Inline	U202
1	5V Step down Module D-SUN	Module-StepDown-MP1584-Formfactor	U301
1	12V Step down Module D-SUN	Module-StepDown-MP1584-Formfactor	U302
1	MODULE-W5500 Module-W5500	Module-W5500	U401
1	MAX3485	DIL08	U501
1	DRV8874	Module-DRV8874	U601
1	DRV8876	Module-DRV8874	U701
1	DRV8874/8876	Module-DRV8874	U801
1	LM393	DIL08	U1001
1	BC557	TO-92_BC5xx_HandSolder	Q901
1	IRLZ44N	TO-220-3_Vertical	Q902
4	BC547	TO-92_BC5xx_HandSolder	Q903, Q1001, Q1002, Q1003
1	Extension	IDC-Header_2x08_P2.54mm_Vertical	J201
1	Debug	Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical	J202
1	Serial	Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical	J203
1	DCC	PinHeader_1x03_P2.54mm_Vertical	J204
1	Sense	PinHeader_1x09_P2.54mm_Vertical	J205
2	GND	PinHeader_1x01_P2.54mm_Vertical	J301, J302
1	Connector-Power-Barrel-Jack	Connector-Power-Barrel-Jack	J303

Show 54 more

Qty	Part	Footprint	Refs
1	DIN-XpressNet	Connector-DIN-XpressNet	J501
1	XPN	PinHeader_1x03_P2.54mm_Vertical	J502
1	XpressNet	PhoenixContact_MC_1,5_4-G-3.81_1x04_P3.81mm_Horizontal	J503
1	DCC-OUT	PhoenixContact_MSTBA_2,5_2-G_1x02_P5.00mm_Horizontal	J601
1	CDE	PhoenixContact_MC_1,5_3-G-3.81_1x03_P3.81mm_Horizontal	J701
1	DCC-SM	PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal	J801
1	RS-Bus	PhoenixContact_MC_1,5_2-G-3.81_1x02_P3.81mm_Horizontal	J901
1	RS_TX	PinHeader_1x01_P2.54mm_Vertical	J902
1	RS_RX	PinHeader_1x01_P2.54mm_Vertical	J903
1	Loconet_Power	PinHeader_1x02_P2.54mm_Vertical	J1001
1	Loconet-T	RJ25_Wayconn_MJEA-660X1_Horizontal	J1002
1	LN_RX	PinHeader_1x01_P2.54mm_Vertical	J1003
1	LN_TX	PinHeader_1x01_P2.54mm_Vertical	J1004
1	Loconet-B	RJ25_Wayconn_MJEA-660X1_Horizontal	J1006
1	Polyfuse	Fuse_Bourns_MF-RG300	F301
2	Polyfuse 500mA	Fuse_Bourns_MF-RHT050	F501, F1001
1	500MA 500mA	Fuse_Bourns_MF-RHT050	F901
1	LAN	LED_D3.0mm	D201
1	LN	LED_D3.0mm	D202
1	XPN	LED_D3.0mm	D203
1	DCC	LED_D3.0mm	D204
2	RS	LED_D3.0mm	D205, D206
1	1N5822	D_DO-201AD_P15.24mm_Horizontal	D301
1	D	Module-XL74610	D302
1	1N4148	DO35-7	D701
5	100NF 100nF	C_Disc_D5.0mm_W2.5mm_P2.50mm	C201, C401, C501, C1003, C1004
1	470UF 470uF	CP_Radial_D10.0mm_P5.00mm	C301
1	100NF 100nF	C_Disc_D5.0mm_W2.5mm_P5.00mm	C701
1	100PF 100pF	C_Disc_D5.0mm_W2.5mm_P5.00mm	C702
2	100PF 100pF	C_Disc_D8.0mm_W2.5mm_P5.00mm	C901, C902
1	47PF 47pF	C_Disc_D8.0mm_W2.5mm_P5.00mm	C1001
1	30PF 30pF	C_Disc_D8.0mm_W2.5mm_P5.00mm	C1002
1	47K	R-0207-10	R201
1	22K	R-0207-10	R202
10	10K	R-0207-10	R203, R602, R701, R802, R901, R905, R908, R1001 +2
6	1K5	R-0207-10	R204, R205, R206, R207, R208, R212
6	4K7	R-0207-10	R209, R210, R211, R703, R902, R903
2	560	R-0207-10	R501, R503
1	120	R-0207-10	R502
1	8K2	R-0207-10	R504
3	NF*	R-0207-10	R601, R702, R801
1	56K	R-0207-10	R704
1	18K	R-0207-10	R705
2	100	R-0207-10	R904, R906
1	220	R-0207-10	R907
2	1K	R-0207-10	R909, R1009
1	68	R-0207-10	R910
1	47	R-0207-10	R1002
2	22	R-0207-10	R1003, R1004
1	12K	R-0207-10	R1007
1	2K2	R-0207-10	R1008
1	220K	R-0207-10	R1010
1	3K3	R-0207-10	R1011
1	6K8	R-0207-10	R1012

TMC-LZ210-Command-Station design files

The KiCad project lives in the tmc-digiboys/TMC-LZ210-Command-Station-PCB repository on GitHub; these links point at the commit this page was built from.

LayoutKicad/V2.3/TMC-Centrale-V2.3.kicad_pcb
SchematicKicad/V2.3/TMC-Centrale-V2.3.kicad_sch
BOMproduction/bom.csv

TMC-LZ210-Command-Station: common questions

What microcontroller does the TMC-LZ210-Command-Station use?

The TMC-LZ210-Command-Station is built around the RASPBERRYPI_PICO2_MODULE-RP2350B-XXL-OLIMEX, from the RP2040/RP2350 family.

How big is the TMC-LZ210-Command-Station PCB?

The TMC-LZ210-Command-Station measures 180 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the TMC-LZ210-Command-Station?

110 components, from 74 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 TMC-LZ210-Command-Station design files?

From the tmc-digiboys/TMC-LZ210-Command-Station-PCB 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 TMC-LZ210-Command-Station design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which tmc-digiboys chose for the repository.

Can I test firmware for the TMC-LZ210-Command-Station without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

Earlier revisions in the repo: TMC-Centrale-V2.2