2 layers319.7 × 58.4 mm
2 layers34.4 × 55.3 mm
W5500 testing
Gregification/BeeMS5Battery Management System
- Size
- 34.4 × 55.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 56
- Pads
- 156
- Tracks, vias
- 286, 76
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 May 2025
- Updated
- 15 Sep 2026
Overview
W5500 testing is an open-source printed circuit board by Gregification, from the Gregification/BeeMS repository on GitHub, published under the MIT licence. It is a 2-layer board of 34.4 × 55.3 mm with 43 parts on 56 nets, routed with 286 tracks and 76 vias.
It is built around the W5500 and MMBT5550L. Its parts include 19 capacitors, 16 resistors, 2 transistors, 2 connectors and 1 IC. It belongs with the power boards of this library.
Main components
2
W5500
LQFP-48_7x7-40℃~+85℃ 10BASE-T、100BASE-TX 3.3V 32KB SPI SPI Wake-up function、Programmable LED indication、Low-power mode Yes LQFP-48(7x7) Ethernet Controllers ROHSWIZNETEthernet Controllers
MMBT5550L
SOT-23-55℃~+150℃ 1 NPN 100nA 140V 225mW 250mV 60 600mA 6V NPN SOT-23 Bipolar (BJT) ROHSonsemiBipolar (BJT)
README
README.mdBeeMS
Battery Management System (BMS)
a work in progress
BMS for University Of Texas At Arlington's FSAE Race team's E27 vehicle.
point of contact for this repo is George Boone
Development
- Code Composer Studio 12
- dependency on Driver Lib
- projects are stand alone, no dependencies on other projects in this repo.
- Kicad 9
- common symbol and footprint library shared amongst all Kicad projects. "zzLocal".
goerge (Gorge Albrecht) is not in any way involved or associated with this project. that account was accidentally listed as a contributor because of a typo in the spelling of george (George Boone).
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C23, C25, C27, C28, C30, C38, C40 |
| 4 | 14.3 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R37, R38, R39, R40 |
| 4 | 49.9 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R41, R42, R45, R46 |
| 3 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C22, C29, C39 |
| 2 | 10n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C31, C36 |
| 2 | 18p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C24, C26 |
| 2 | 332 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R48, R49 |
| 2 | 4.99k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R43, R44 |
| 2 | 6.8n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C33, C34 |
| 2 | MMBT5550L | Package_TO_SOT_SMD:SOT-23 | Q4, Q5 |
| 1 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R35 |
| 1 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R47 |
| 1 | 12.4k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R36 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R34 |
| 1 | 1n 2kV | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C37 |
| 1 | 22n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C35 |
| 1 | 4.7u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C32 |
| 1 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J4 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | NetTie_2 | NetTie:NetTie-2_SMD_Pad2.0mm | NT1 |
| 1 | RJ45_Amphenol_RJMG1BD3B8K1ANR | Connector_RJ:RJ45_Amphenol_RJMG1BD3B8K1ANR | J5 |
| 1 | W5500 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U22 |
| 1 | ~ | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB2 |
Questions
How big is the W5500 testing PCB?
It measures 34.4 × 55.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the W5500 testing use?
43 parts, built around the W5500 and MMBT5550L. 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 W5500 testing KiCad files?
From the Gregification/BeeMS repository on GitHub, at the commit this page was made from: the board is hardware/W5500 testing/W5500 testing.kicad_pcb and its schematic hardware/CAN DC SS switch/CAN DC SS switch.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the W5500 testing design in my own project?
Its repository publishes it under the MIT 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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