2 layers59 × 22 mm
2 layers102 × 84 mm
RelayCard
chapppy/Board-for-Relay-CardDesign of schematic and PCB for Relay Card control over USB and CAN based on STM32
- Size
- 102 × 84 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 81
- Nets
- 87
- Pads
- 311
- Tracks, vias
- 805, 80
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 14 Feb 2019
- Updated
- 18 Feb 2019
Overview
RelayCard is an open-source printed circuit board by chapppy, from the chapppy/Board-for-Relay-Card repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 102 × 84 mm with 81 parts on 87 nets, routed with 805 tracks and 80 vias.
It is built around the STM32F072C8T6, SN65HVD233D and ULN2003A, with the USBLC6-2SC6, IRLML6402TRPBF and STPS1L30A among its other parts. Its parts include 17 diodes, 14 capacitors, 14 resistors, 7 switches and 6 ICs. It belongs with the home automation and IoT boards and the STM32 boards of this library.
Main components
6
STM32F072C8T6
LQFP-48(7x7)-40℃~+85℃ 1.65V~3.6V 12bit 12bit 16KB 32 Bit 37 48MHz 64KB ARM Cortex-M0 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
SN65HVD233D
SOIC-8-40℃~+125℃ 1 1Mbps 200uA 3.3V 6mA CAN Transceiver SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
ULN2003A
SOP-16-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 50V Seven channels SOP-16 Darlington Transistor Arrays ROHSUMWDarlington Transistor Arrays
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
IRLML6402TRPBF
SOT-23-55℃~+150℃ 1 P-Channel 1.7W 190pF 1V 20V 290pF 4.1A 7.8nC@4.5V 740pF 75mΩ@2.5V SOT-23 MOSFETs ROHSTECH PUBLICMOSFETs
STPS1L30A
SMA(DO-214AC)1 Independent 1A 200uA@30V 30V 395mV@1A 75A SMA(DO-214AC) Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
README
README.mdBoard-for-Relay-Card
This repository contains design of schematic and PCB for Relay Card. This board support:
- up to 7 relays (with SPDT contacts)
- additional 7 relays on extra board
- control of relay over USB
- control of relay over CAN
- single power supply from USB
- possibility of external power supply (for board control over CAN)
This is based on STM32 microcontroller F0 family (STM32F072C8T6). This microcontroller supports USB and in advance it support crystal-less USB. The CAN driver is also available.
The goal is use as less parts as possible with consideration of hand soldering. All the part should be simple to get or replace with another compatible. The design is simple two layer board with most of the parts (and all necessary) on top layer. The design fits to box for DIN lath.
This is related to these repositories: Firmware-for-Relay-Card Sample-GUI-for-Relay-Card Board-for-Relay-Card
schematic
In case of control only over USB and 4 relays, there is reduced schematic: reduced schematic
PCB design
data for manufacturing
Parts
81| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 570R | Resistors_SMD:R_0805_HandSoldering | R6, R7, R8, R9, R10, R11, R12, R13 |
| 8 | LED | Diodes_SMD:D_0805 | D3, D4, D5, D6, D7, D8, D9, D10 |
| 7 | Conn_01x03 | Connectors_Terminal_Blocks:TerminalBlock_bornier-3_P5.08mm | REL_1, REL_2, REL_3, REL_4, REL_5, REL_6, REL_7 |
| 7 | G5SB-5V | Relays_THT:Relay_SPDT_OMRON-G5Q | K1, K2, K3, K4, K5, K6, K7 |
| 6 | 100n | Capacitors_SMD:C_0805_HandSoldering | C2, C6, C7, C9, C10, C14 |
| 6 | D | Diodes_SMD:D_SOD-123 | D12, D13, D14, D15, D16, D17 |
| 2 | 100n | Capacitors_SMD:C_0805_HandSoldering | C4, C5 |
| 2 | 10uF/16V | Capacitors_Tantalum_SMD:CP_Tantalum_Case-B_EIA-3528-21_Hand | C11, C12 |
| 2 | 22p | Capacitors_SMD:C_0805_HandSoldering | C13, C15 |
| 2 | 33k | Resistors_SMD:R_0805_HandSoldering | R3, R14 |
| 2 | IRLML6402TRPBF | TO_SOT_Packages_SMD:SOT-23 | Q1, Q2 |
| 2 | SD110-16 | Resistors_SMD:R_1812_HandSoldering | F1, F2 |
| 2 | ULN2003A | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U5, U6 |
| 1 | 100K | Resistors_SMD:R_0805_HandSoldering | R1 |
| 1 | 100k | Resistors_SMD:R_0805_HandSoldering | R15 |
| 1 | 10k | Resistors_SMD:R_0805_HandSoldering | R4 |
| 1 | 120R | Resistors_SMD:R_0805_HandSoldering | R5 |
| 1 | 2.2uF/6.3V | Capacitors_Tantalum_SMD:CP_Tantalum_Case-A_EIA-3216-18_Hand | C8 |
| 1 | 47uF/16V | Capacitors_Tantalum_SMD:CP_Tantalum_Case-C_EIA-6032-28_Hand | C1 |
| 1 | 5v1 | Diodes_SMD:D_SOD-323 | D2 |
| 1 | 8MHz | Crystals:Crystal_HC49-4H_Vertical | Y1 |
| 1 | AZ1117-3.3 | TO_SOT_Packages_SMD:SOT-223 | U3 |
| 1 | Conn_01x02 | Connectors_Terminal_Blocks:TerminalBlock_bornier-2_P5.08mm | J13 |
| 1 | Conn_01x05 | Pin_Headers:Pin_Header_Straight_1x05_Pitch2.54mm | J3 |
| 1 | Conn_01x09_Male | Connectors_DSub:DSUB-9_Female_Horizontal_Pitch2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm | J4 |
| 1 | Conn_02x11_Odd_Even | Pin_Headers:Pin_Header_Straight_2x11_Pitch2.54mm | J1 |
| 1 | D | Diodes_SMD:D_SOD-323 | D11 |
| 1 | Jumper | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP1 |
| 1 | Jumper_NC_Dual | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | JP2 |
| 1 | STM32F072C8T6 | Housings_QFP:LQFP-48_7x7mm_Pitch0.5mm | U2 |
| 1 | STPS1L30A | Diodes_SMD:D_SMA | D1 |
| 1 | USBLC6-2SC6 | TO_SOT_Packages_SMD:SOT-23-6 | U1 |
| 1 | USB_B | Connectors:USB_B | J2 |
| 1 | sn65hvd233 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U4 |
The 77 most common of 81 parts.
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Questions
How big is the RelayCard PCB?
It measures 102 × 84 mm and has 2 copper layers, 1.6 mm thick.
What parts does the RelayCard use?
81 parts, built around the STM32F072C8T6, SN65HVD233D, ULN2003A and USBLC6-2SC6. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the RelayCard KiCad files?
From the chapppy/Board-for-Relay-Card repository on GitHub, at the commit this page was made from: the board is relayCard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the RelayCard design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).