2 layers76.2 × 101.6 mm
2 layers74.6 × 74.6 mm
BatteryMonitorModule
tuffinmuffin/battery-cart- Size
- 74.6 × 74.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 76
- Nets
- 69
- Pads
- 270
- Tracks, vias
- 474, 68
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 13 Apr 2026
- Updated
- 28 May 2026
Overview
BatteryMonitorModule is an open-source printed circuit board by tuffinmuffin, from the tuffinmuffin/battery-cart repository on GitHub. It is a 2-layer board of 74.6 × 74.6 mm with 76 parts on 69 nets, routed with 474 tracks and 68 vias.
It is built around the STM32C071K8T6, INA226AQDGSRQ1 and 1N4148W, with the SI4435FDY-T1-GE3(ES), SS14 and ALQ312 among its other parts. Its parts include 26 resistors, 9 capacitors, 8 connectors, 7 diodes and 5 transistors. It belongs with the STM32 boards of this library.
Main components
9
STM32C071K8T6
LQFP-32(7x7)-40℃~+85℃ 24KB 29 2V~3.6V 32 Bit 48MHz 64KB ARM Cortex-M0+ Built-in FLASH LQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
INA226AQDGSRQ1
VSSOP-10-0.5mm-40℃~+125℃ 0.1uV/℃ 0V~36V 10mA 10nA 140dB 2.5uV 2.7V~5.5V 330uA High-side detection、Low-side detection、Power monitoring、Digital output interface、Programmable threshold alarm ±40V VSSOP-10-0.5mm Current Sense Amplifiers ROHSTexas InstrumentsSupervisor And Reset ICs
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
SI4435FDY-T1-GE3(ES)
SOP-8SOP-8 MOSFETs ROHSElecSuperMOSFETs
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
ALQ312
插件,20x10mm-40℃~+85℃ 1 Set Normally Open: 1A (SPST NO) 100mΩ 10A 10mm 12V 200mW 20mm 20ms 20ms 250V@AC 5A@30VDC、5A@250VAC、10A@125VAC 720Ω AgNi 插件,20x10mm Power Relays ROHSPanasonicPower Relays
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsMMBT2222A
SOT-23-55℃~+150℃ 1 NPN 100 100nA 1V 300MHz 300mW 40V 600mA 6V NPN Standalone SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
NTCG164BH103JT1
0603-40℃~+125℃ 0.8mm 0.8mm 1.6mm 100mW 10kΩ 1mW/℃ 310uA 4067K 4092K 4100K 4110K ±3% ±5% 0603 NTC Thermistors ROHSTDKNTC Thermistors
Parts
76| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 5k1 | Resistor_SMD:R_0402_1005Metric | R2, R3, R20, R21, R22, R23, R25, R26 |
| 6 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R9, R11, R14, R19, R24 |
| 5 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C3, C4, C7, C9 |
| 4 | 62.0 2W | Resistor_THT:R_Axial_DIN0516_L15.5mm_D5.0mm_P5.08mm_Vertical | R4, R5, R6, R7 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 100 | Resistor_SMD:R_0402_1005Metric | R8, R12, R17 |
| 3 | Fiducial | Fiducial:Fiducial_0.5mm_Mask1.5mm | FID1, FID2, FID3 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D4 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C5, C6 |
| 2 | 7.5A ATM | BatteryMonitorModule_Custom:FUSE_BK-6013 | F1, F2 |
| 2 | SI4435FDY-T1-GE3 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | Q1, Q2 |
| 2 | SS14 | Diode_SMD:D_SOD-123 | D2, D3 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 184C | Resistor_THT:R_Axial_DIN0516_L15.5mm_D5.0mm_P20.32mm_Horizontal | TF1 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 2A ATM | BatteryMonitorModule_Custom:FUSE_BK-6013 | F3 |
| 1 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q5 |
| 1 | 3.3uH | BatteryMonitorModule_Custom:IND_BOURNS_SRR4028 | L1 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 4m | Resistor_SMD:R_Shunt_Vishay_WSK2512_6332Metric_T2.21mm | R13 |
| 1 | 56k | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 68k | Resistor_SMD:R_0402_1005Metric | R16 |
| 1 | ALQ312 | Relay_THT:Relay_SPDT_Omron-G5Q-1 | K1 |
| 1 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | AP63203WU-7 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U2 |
| 1 | BOOT0 | Button_Switch_SMD:SW_SPST_FSMSM | SW1 |
| 1 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J6 |
| 1 | Fan1 | BatteryMonitorModule_Custom:2510FanOverhead | H5 |
| 1 | INA226AQDGSRQ1 | Package_SO:MSOP-10_3x3mm_P0.5mm | U3 |
| 1 | J_FAN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | J_NFC | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J3 |
| 1 | J_PANEL | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J8 |
| 1 | J_PANEL | Connector_JST:JST_XH_B8B-XH-AM_1x08_P2.50mm_Vertical | J4 |
| 1 | J_UART | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | Keystone 4966 | BatteryMonitorModule_Custom:KEYSTONE_4966 | PE_GND1 |
| 1 | LED_12V | LED_SMD:LED_0603_1608Metric | LED1 |
| 1 | LED_3V3 | LED_SMD:LED_0603_1608Metric | LED2 |
| 1 | LED_MCU | LED_SMD:LED_0603_1608Metric | LED3 |
| 1 | MMBT2222A | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | NRST | Button_Switch_SMD:SW_SPST_FSMSM | SW2 |
| 1 | NTCG164BH103JT1 | Resistor_SMD:R_0603_1608Metric | RT1 |
| 1 | QT06ADP83H0000G | BatteryMonitorModule_Custom:QT06ADP83H0000G | J2 |
| 1 | STM32C071K8T6 | Package_QFP:LQFP-32_7x7mm_P0.8mm | U1 |
| 1 | USB-C | BatteryMonitorModule_Custom:SAMESKY_UJ20-C-H-G-SMT-1-P16-TR | J7 |
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Questions
How big is the BatteryMonitorModule PCB?
It measures 74.6 × 74.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BatteryMonitorModule use?
76 parts, built around the STM32C071K8T6, INA226AQDGSRQ1, 1N4148W and SI4435FDY-T1-GE3(ES). 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 BatteryMonitorModule KiCad files?
From the tuffinmuffin/battery-cart repository on GitHub, at the commit this page was made from: the board is CAD/BatteryMonitorModule_V1/BatteryMonitorModule/BatteryMonitorModule.kicad_pcb and its schematic CAD/BatteryMonitorFrontPanel/BatteryMonitorFrontPanel/BatteryMonitorFrontPanel.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BatteryMonitorModule design in my own project?
Its repository states no licence, so its author keeps all rights: ask tuffinmuffin before reusing the design.