4 layers100 × 65 mm
Hw charger
xtech/hw-module-charger
This hardware version is in beta state. Expect for things to not work at the current state!
164 parts
4 layers180 × 170 mm
Hw openmower yardforce
xtech/hw-openmower-yardforce12This repository contains the design files for a custom mainboard specifically designed for converting YardForce mowers to OpenMower
- Size
- 180 × 170 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 293
- Nets
- 342
- Pads
- 1,310
- Tracks, vias
- 2,513, 641
- Pours
- 19
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Sep 2024
- Updated
- 12 Oct 2026
Overview
Hw openmower yardforce is an open-source printed circuit board by xtech, from the xtech/hw-openmower-yardforce repository on GitHub, published under the CC-BY-4.0 licence. It is a 4-layer board of 180 × 170 mm with 293 parts on 342 nets, routed with 2,513 tracks and 641 vias.
It is built around the SN74LVC157ADRG3, TPS2065CDBV and BQ25756RRVR, with the BSC0702LS, SS54 and SMCJ33CA-L among its other parts. Its parts include 82 capacitors, 75 resistors, 42 ICs, 22 diodes and 19 connectors. It belongs with the robots and motor control boards of this library.
Main components
8
SN74LVC157ADRG3
SOIC-16-40℃~+85℃ 1uA 24mA 24mA 2V~3.6V 3ns@3.3V,50pF 74LVC Level shifting Single Supply SOIC-16 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders
TPS2065CDBV
SOT-23-5-40℃~+125℃ 1 1A 4.5V~5.5V 96mΩ Active High Low Side Switch 输出放电功能、软启动、欠压锁定、集成电荷泵、Overcurrent Protection、Over temperature protection、Short-Circuit Protection、反向电流阻断 SOT-23-5 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
BQ25756RRVR
VQFN-36(5x6)-40℃~+125℃ 17uA 1~14 20A 4.2V~70V Charging IC I2C Lithium Battery、LiFePO4 Battery Support VQFN-36(5x6) Battery Management ROHSTexas InstrumentsBattery Management
BSC0702LS
TDSON-8(5x6)-55℃~+150℃ 1 N-channel 2.3V 2.7mΩ@10V 30nC@4.5V 4.4nF 58pF 60V 83W 84A TDSON-8(5x6) MOSFETs ROHSInfineon TechnologiesMOSFETs
SS54
SMA(DO-214AC)-55℃~+125℃ 1mA@40V 40V 550mV@5A 5A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
SMCJ33CA-L
SMCESD And Surge Protection (TVS/ESD)Shandong Jingdao Microelectronics
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
HR911130A
插件0℃~+70℃ 1 Gold Non-PoE Phosphor bronze RJ45 Jack Right Angle Shielded With Cross Pin With LED 插件 Ethernet Connectors / Modular Connectors (RJ45 RJ11) ROHSHANRUNEthernet Connectors / Modular Connectors (RJ45 RJ11)
README
README.mdOpenMower Mainboard for YardForce Mowers
About This Repo
OpenMower is an open-source project that upgrades off-the-shelf robotic mowers into modern, smart lawn mowing robots with RTK GPS technology. For more details, check out the OpenMower project.
This repository contains the design files for a custom mainboard specifically designed for converting YardForce mowers to OpenMower.
List of Compatible Mowers
This mainboard is compatible with the following mower models:
- YardForce Classic 500(B)
- YardForce SA-series mowers (SA650, SA900, ...)
Additional Information
This mainboard is the reference board for OpenMower and includes more features than actually required to build an OpenMower robot. This way it can be used as a template for other mower models. Additional features include a gigabit Ethernet switch, LiPo charger, and a 12V auxiliary power supply for extensions.
Patents, Local Laws, Liability
Before building a robot based on the designs published here, please make sure that you are allowed to do so in your specific regions. There may be patents and / or laws prohibiting you of doing so.
The code/schematics/PCB files are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
This basically means: I'm just documenting a project of mine here for free and I don't have the time and resources to check that devices built using this information will be safe to use, legal to use or even work as intended. You will need technical know-how to use this project and I'm not liable for any damages your devices do to anyone or anything.
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Parts
293| Qty | Value | Footprint | References |
|---|---|---|---|
| 36 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R27, R28, R29, R30, R31, R32, R34, R35, R36, R37, R38, R39 +20 |
| 20 | 100nF@50V | Capacitor_SMD:C_0603_1608Metric | C1, C2, C5, C10, C15, C17, C18, C19, C20, C22, C23, C36, C37, C48, C52, C54 +4 |
| 10 | 10uF@50V | Capacitor_SMD:C_1206_3216Metric | C11, C16, C24, C25, C66, C67, C70, C71, C74, C75 |
| 9 | 2.54mm 2x2 socket | xtech:Dummy | U18, U19, U20, U21, U22, U23, U24, U25, U26 |
| 9 | 220uF@80V | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C42, C47, C50, C64, C65, C68, C69, C72, C73 |
| 9 | DNP | Diode_SMD:D_SMB | D8, D9, D10, D12, D13, D14, D18, D19, D20 |
| 8 | 4.7uF@50V | Capacitor_SMD:C_1206_3216Metric | C38, C39, C40, C41, C43, C44, C45, C46 |
| 8 | 470nF@50V | Capacitor_SMD:C_0805_2012Metric | C3, C4, C6, C7, C26, C29, C35, C53 |
| 7 | 2.54mm 1x6 socket | xtech:Dummy | U30, U31, U32, U33, U34, U35, U42 |
| 6 | Conn_01x03_Pin | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J8, J9, J12, J13, J14, J15 |
| 5 | 100uF@6.3V | Capacitor_SMD:C_1206_3216Metric | C9, C31, C32, C33, C34 |
| 4 | 300R | Resistor_SMD:R_0603_1608Metric | R11, R12, R13, R14 |
| 4 | 4.7uF@50V | Capacitor_SMD:C_0805_2012Metric | C55, C56, C58, C59 |
| 4 | BSC0702LS | Package_TO_SOT_SMD:TDSON-8-1 | Q6, Q7, Q8, Q9 |
| 4 | Fuse Holder | xtech:Dummy | U14, U15, U16, U17 |
| 4 | LED GREEN | LED_SMD:LED_0805_2012Metric | D1, D5, D6, D29 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_5mm_Pad_Via | H1, H2, H3, H4 |
| 4 | SS54 | Diode_SMD:D_SMA | D3, D15, D16, D28 |
| 3 | 0R | Resistor_SMD:R_0805_2012Metric | R8, R26, R66 |
| 3 | 100nF@100V | Capacitor_SMD:C_0805_2012Metric | C79, C81, C82 |
| 3 | 1M | Resistor_SMD:R_0805_2012Metric | R5, R6, R7 |
| 3 | 2.2k | Resistor_SMD:R_0805_2012Metric | R45, R58, R59 |
| 3 | 2.54mm 1x5 socket | xtech:Dummy | U39, U40, U41 |
| 3 | 2.54mm 1x9 socket | xtech:Dummy | U36, U37, U38 |
| 3 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C62, C78, C84 |
| 3 | 470nF@25V | Capacitor_SMD:C_0603_1608Metric | C57, C61, C83 |
| 3 | SMCJ33CA-L | Diode_SMD:D_SMC | D7, D11, D17 |
| 3 | xESC2 | xtech:xESC2-mini | U8, U9, U10 |
| 2 | 10R | Resistor_SMD:R_0603_1608Metric | R68, R69 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R24, R52 |
| 2 | 150 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R25, R53 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R78, R79 |
| 2 | 1uF@50V | Capacitor_SMD:C_0805_2012Metric | C51, C80 |
| 2 | 2.54mm 1x8 socket | xtech:Dummy | U43, U44 |
| 2 | 680uF | Capacitor_SMD:CP_Elec_10x12.5 | C13, C14 |
| 2 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q4 |
| 2 | C | Capacitor_SMD:C_0805_2012Metric | C27, C30 |
| 2 | Conn_01x02 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J17, J18 |
| 2 | Conn_01x02_Pin | nlbn:HC-HY-2A_C2845460 | J27, J40 |
| 2 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J31, J34 |
| 2 | Fuse | xtech:Fuseholder5x20_horiz_open_inline_XF-003 | F2, F4 |
| 2 | Fuse 2A | xtech:Dummy | U28, U29 |
| 2 | HR911130A | local_Connectors:HR911130A | J23, J24 |
| 2 | SN74LVC07ADBR | nlbn:SN74LVC07ADBR_C2676799 | U11, U12 |
| 2 | SN74LVC157ADR | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U47, U48 |
| 2 | TPS2065CDBV | Package_TO_SOT_SMD:SOT-23-5 | U1, U2 |
| 2 | V1FM10-M3/H | Diode_SMD:D_SMF | D2, D26 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R21 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric | R16 |
| 1 | 100k 0.1% | Resistor_SMD:R_0603_1608Metric | R17 |
| 1 | 100pF | Capacitor_SMD:C_0603_1608Metric | C60 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric | C12 |
| 1 | 10uH | Inductor_SMD:L_Sunlord_MWSA1004S | L4 |
| 1 | 133kR | Resistor_SMD:R_0603_1608Metric | R74 |
| 1 | 15k 0.1% | Resistor_SMD:R_0603_1608Metric | R23 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R19 |
| 1 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C28 |
| 1 | 2.54mm 1x10 socket | xtech:Dummy | U45 |
| 1 | 2.54mm 2x6 socket | xtech:Dummy | U46 |
| 1 | 20k | Resistor_SMD:R_0805_2012Metric | R44 |
| 1 | 220kR 0.1% | Resistor_SMD:R_0603_1608Metric | R71 |
| 1 | 22uH | Inductor_SMD:L_Sunlord_MWSA1004S | L3 |
| 1 | 249kR 0.1% | Resistor_SMD:R_0603_1608Metric | R33 |
| 1 | 25k 0.1% | Resistor_SMD:R_0603_1608Metric | R18 |
| 1 | 2k7 0.1% | Resistor_SMD:R_0603_1608Metric | R55 |
| 1 | 30.31kR | Resistor_SMD:R_0603_1608Metric | R73 |
| 1 | 32k4 0.1% | Resistor_SMD:R_0603_1608Metric | R56 |
| 1 | 33k 0.1% | Resistor_SMD:R_0603_1608Metric | R54 |
| 1 | 3k24 0.1% | Resistor_SMD:R_0603_1608Metric | R57 |
| 1 | 47kR | Resistor_SMD:R_0603_1608Metric | R20 |
| 1 | 5.24kR | Resistor_SMD:R_0603_1608Metric | R72 |
| 1 | 5mR | Resistor_SMD:R_2512_6332Metric | R67 |
| 1 | 6.8uH | Inductor_SMD:L_Sunlord_MWSA1004S | L1 |
| 1 | AF 90 WJDG | Connector_USB:USB_A_Molex_67643_Horizontal | J28 |
| 1 | Ardusimple_F9P | xtech:Arduino_Uno_Shield_Ardusimple_Budget | XA1 |
| 1 | BQ25756RRVR | local_CHARGER:BQ25756RRVR | U27 |
| 1 | Conn_01x02 | Connector_Molex:Molex_Mini-Fit_Jr_5566-02A_2x01_P4.20mm_Vertical | J3 |
| 1 | Conn_01x02 | Connector_AMASS:AMASS_XT60-F_1x02_P7.20mm_Vertical | J20 |
| 1 | Conn_01x04 | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J19 |
| 1 | Conn_01x04 | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J4 |
The 256 most common of 293 parts.
Questions
How big is the Hw openmower yardforce PCB?
It measures 180 × 170 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Hw openmower yardforce use?
293 parts, built around the SN74LVC157ADRG3, TPS2065CDBV, BQ25756RRVR and BSC0702LS. 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 Hw openmower yardforce KiCad files?
From the xtech/hw-openmower-yardforce repository on GitHub, at the commit this page was made from: the board is hw-openmower-yardforce.kicad_pcb and its schematic Amplifier.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hw openmower yardforce design in my own project?
Its repository publishes it under the CC-BY-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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