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2 layers194 × 129.5 mmGateway(v2), the printed circuit board in 3D

Gateway(v2)

balanceTWK/WBMS
Size
194 × 129.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
144
Nets
263
Pads
657
Tracks, vias
1,253, 291
Pours
491
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
2 Apr 2026
Updated
29 May 2026

Overview

Gateway(v2) is an open-source printed circuit board by balanceTWK, from the balanceTWK/WBMS repository on GitHub. It is a 2-layer board of 194 × 129.5 mm with 144 parts on 263 nets, routed with 1,253 tracks and 291 vias.

It is built around the ML307A-DSLN, RTL8201F-VB-CG and SY8120B1ABC, with the W25Q128JVSIQ, SMC-204-ARP6 and TXS0108EPW among its other parts. Its parts include 46 resistors, 42 capacitors, 15 ICs, 10 connectors and 6 diodes.

Main components

12

README

README.md

wBMS

无线BMS通信模组设计

握手流程

1.终端处于出厂设置时:

mermaid
sequenceDiagram
	participant A as 网关
    participant B as 终端1
    B->>B: 获取网关mac
	Note Left of B: 终端1的slot time为0
    A->>B: 广播数据(其他)
    A->>B: 广播数据(其他)
    loop MacCheck
    	A-->>B: 广播数据(mac)
    	B-->>A: 使用 slot time 0 随机发送请求网关分配slot time
    	B->>B: 检查本机mac是否被网关分配了slot time
        A-->>B: 广播数据(mac):终端获取到网关分配的 slot time
        Note Left of B: 此时终端1分配到slot time,退出循环。
    end
    A->>B: 广播数据(其他)
    B->>A: 发送数据

2.终端已经被分配过时隙时:

mermaid
sequenceDiagram
	participant A as 网关
    participant B as 终端1
    B->>B: 获取网关mac
	Note Left of B: 终端1的slot time不为0
    A->>B: 广播数据(其他)
    A->>B: 广播数据(其他)
    loop MacCheck
    	A-->>B: 广播数据(mac)
    	B->>B: 检查本机slot time与网关分配的slot time是否对应。
        Note Left of B: 终端1判断mac与网关分配的slot time对应,退出循环。
    end
    A->>B: 广播数据(其他)
    B->>A: 发送数据

Parts

144
QtyValueFootprintReferences
210.1uFCapacitor_SMD:C_0603_1608MetricC12, C13, C14, C15, C16, C27, C28, C29, C30, C31, C32, C33, C34, C35, C36, C37 +5
1410KResistor_SMD:R_0603_1608MetricR1, R2, R3, R16, R17, R19, R20, R26, R28, R32, R37, R38, R39, R44
1010ufCapacitor_SMD:C_0603_1608MetricC1, C2, C3, C4, C5, C6, C17, C20, C21, C22
6NCCapacitor_SMD:C_0603_1608MetricC18, C19, C23, C24, C25, C26
52.2uHkicad_lceda:IND-SMD_L3.0-W3.0_FNR30XXSL2, L3, L4, L5, L6
5SY8120B1ABCkicad_lceda:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BLU1, U2, U3, U6, U10
30.1RResistor_SMD:R_0805_2012MetricR13, R14, R15
3110KResistor_SMD:R_0603_1608MetricR10, R34, R40
31KResistor_SMD:R_0603_1608MetricR24, R25, R31
32.2KResistor_SMD:R_0603_1608MetricR6, R45, R46
35Resistor_SMD:R_0603_1608MetricR27, R35, R36
3Conn_01x02Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalBOOT, J4, J8
3HJ-SMA858kicad_lceda:SMA-TH_HJ-SMA858RF1, RF2, RF3
3LEDLED_THT:LED_D5.0mm_Horizontal_O3.81mm_Z9.0mmD2, D4, D5
3LOGOLOGOG***, G***, G***
20402_12pF__120_5%_50VCapacitor_SMD:C_0402_1005MetricC7, C8
20402_18pF__180_5%_50VCapacitor_SMD:C_0402_1005MetricC9, C10
2100KResistor_SMD:R_0603_1608MetricR7, R12
2100RResistor_SMD:R_0603_1608MetricR42, R43
24.7KResistor_SMD:R_0603_1608MetricR21, R23
25.1KResistor_SMD:R_0603_1608MetricR4, R5
2510KResistor_SMD:R_0603_1608MetricR9, R33
2BSN20Package_TO_SOT_SMD:SOT-23Q1, Q2
2Conn_01x02kicad_lceda:CONN-TH_2P-P5.08_DB2ER-5.08-2PJ11, J12
2Conn_02x02_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_VerticalJ9, J10
2TKM-101kicad_lceda:TKM-101U11, U12
10805_100uH_10%Fuse:Fuse_0805_2012MetricL1
110MResistor_SMD:R_0603_1608MetricR18
1120KResistor_SMD:R_0603_1608MetricR8
1120RResistor_SMD:R_0603_1608MetricR41
1160KResistor_SMD:R_0603_1608MetricR29
11ufCapacitor_SMD:C_0603_1608MetricC11
12.49KResistor_SMD:R_0603_1608MetricR22
1200KResistor_SMD:R_0603_1608MetricR11
12N7002_7002lc_lib:SOT-23(SOT-23-3)Q4
130KResistor_SMD:R_0603_1608MetricR30
1BS-12-B3AA003-Rkicad_lceda:BAT-SMD_CR1220-2_C964724BAT1
1BZV55B5V1Diode_SMD:D_SOD-123D6
1CAN/PCA82C250T/YM_[C7439]lc_lib:SOIC-8_150MILU15
1Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ5
1Conn_01x04Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ7
1Conn_01x10kicad_lceda:CONN-TH_10P-P5.08_DB2ER-5.08-10PJ2
1D133CBS-QFN88kicad_lceda:QFN-88_L10.0-W10.0-P0.40-BL-EP6.75U4
1DTC143ZKAkicad_lceda:SOT-23-3_L3.0-W1.7-P0.95-LS2.9-BRQ3
1HC-DC-005-2.0Tkicad_lceda:DC-IN-TH_HC-DC-005-2.0TDC5V
1HR911105A_C12074kicad_lceda:RJ45-TH_HR911105AJ3
1LED_yellowLED_SMD:LED_0603_1608MetricD3
1ML307A-DSLNkicad_lceda:LGA-94_L17.7-W15.8_N706-CA-01-S1U8
1RESET_KEYButton_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx39-2LFSRESET
1RTL8201F-VB-CGkicad_lceda:QFN-32_L5.0-W5.0-P0.50-BL-EP3.4U5
1SMA_DO-214AC_SS54lc_lib:SMA(DO-214AC)_S1D1
1SMC-204-ARP6kicad_lceda:SIM-SMD_SIM-SMD_MICROSIM_SMC-204U9
1SMD-3215_2P_32.768KHz_20ppm_12.5pFCrystal:Crystal_SMD_3215-2Pin_3.2x1.5mmY1
1SMD-3225_4P__24MHZlc_lib:SMD-3225_4PY2
1SN65176BDRG4kicad_lceda:SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL-2U14
1Screw_Terminal_01x03kicad_lceda:CONN-TH_3P-P5.08_DB2ER-5.08-3PJ13
1TXS0108EPWPackage_SO:TSSOP-20_4.4x6.5mm_P0.65mmU7
1UBOOT_KEYButton_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx58-2LFSBOOT
1USB_C_Receptacle_USB2.0Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12J1
1W25Q128JVSPackage_SO:SOIC-8_5.23x5.23mm_P1.27mmU13

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Questions

How big is the Gateway(v2) PCB?

It measures 194 × 129.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Gateway(v2) use?

144 parts, built around the ML307A-DSLN, RTL8201F-VB-CG, SY8120B1ABC and W25Q128JVSIQ. 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 Gateway(v2) KiCad files?

From the balanceTWK/WBMS repository on GitHub, at the commit this page was made from: the board is pcb/gateway(v2)/gateway(v2).kicad_pcb and its schematic pcb/gateway(v2)/4G.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Gateway(v2) design in my own project?

Its repository states no licence, so its author keeps all rights: ask balanceTWK before reusing the design.