4 layers101 × 48 mm
4 layers100 × 100 mm
PowerMonitor
steewbsd/gilgamesh- Size
- 100 × 100 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 157
- Nets
- 68
- Pads
- 371
- Tracks, vias
- 962, 1,166
- Pours
- 25
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 11 Jun 2025
- Updated
- 6 Aug 2026
Overview
PowerMonitor is an open-source printed circuit board by steewbsd, from the steewbsd/gilgamesh repository on GitHub. It is a 4-layer board of 100 × 100 mm with 157 parts on 68 nets, routed with 962 tracks and 1,166 vias.
It is built around the LM358, INA129P and LM393, with the AO3400A and PESD15VL1BA among its other parts. Its parts include 48 resistors, 20 transistors, 17 diodes, 15 capacitors and 8 ICs.
Main components
5
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
INA129P
PDIP-8-18V~-2.25V、2.25V~18V -40℃~+85℃ 0.01% 1 1.3MHz 10uV 12us 1V/V~10000V/V 1nA 20nA 4.5V~36V 4V/us 500nV/℃ 50pA/℃ 6mA 700uA 86dB 8nV/√Hz@1kHz External resistor gain、Overvoltage protection PDIP-8 Instrumentation Amplifiers ROHSTexas InstrumentsInstrumentation AmplifiersLM393
SOP-8-16V~16V 0℃~+70℃ 2 2.5mA 250nA 2V~36V 36V 5mV 5nA Fail-safe function Open-drain SOP-8 Comparators ROHSMSKSEMIComparators
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 SemiconductorMOSFETs
PESD15VL1BA
SOD-323ESD And Surge Protection (TVS/ESD)FUXINSEMI
Parts
157| Qty | Value | Footprint | References |
|---|---|---|---|
| 36 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP2, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23 +20 |
| 16 | AO3400A | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q16, Q17, Q18, Q20 |
| 11 | 50k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R9, R20, R22, R31, R32, R33, R35, R39, R45, R48 |
| 8 | RED | LED_SMD:LED_0603_1608Metric | D5, D6, D7, D8, D9, D10, D12, D13 |
| 7 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R18, R26, R28, R30, R37, R41 |
| 7 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3, C4, C11, C12, C14, C15 |
| 7 | BZT52Bxx | Diode_SMD:D_SOD-123F | D1, D2, D3, D14, D15, D16, D17 |
| 6 | 150 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R10, R16, R19, R38, R46 |
| 5 | Conn_01x02_Socket | steew:JST_VL_B02P-VL_1x02_P6.2mm_Vertical | J1, J2, J3, J4, J5 |
| 4 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C7, C8, C10 |
| 4 | LM393 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U3, U6, U7 |
| 3 | 0R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R21, R42 |
| 3 | 1.8k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R24, R40 |
| 3 | 16k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11, R15, R43 |
| 3 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R29, R44 |
| 3 | 2k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R17, R36 |
| 3 | 33n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C9, C13 |
| 3 | 5.6k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12, R23, R47 |
| 3 | Battery | Battery:BatteryHolder_Keystone_1042_1x18650 | BT0, BT1, BT2 |
| 3 | LM358 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U5, U8 |
| 3 | Q_PMOS_GDS | Package_TO_SOT_SMD:TO-252-2 | Q3, Q15, Q19 |
| 2 | 100R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R25, R34 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad | H1, H2 |
| 1 | 0R001 | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R14 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R27 |
| 1 | 150R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 374R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 470u | Capacitor_THT:CP_Radial_D8.0mm_P5.00mm | C6 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D11 |
| 1 | INA129 | Package_SO:SOIC-8_5.3x6.2mm_P1.27mm | U4 |
| 1 | L_Ferrite_Coupled_1423 | Inductor_SMD:L_CommonModeChoke_TDK_ACM7060 | L1 |
| 1 | PESD15VL1BA | Diode_SMD:D_SOD-323_HandSoldering | D4 |
| 1 | Relay_SPST-NO | Relay_THT:Relay_SPST_Omron_G5NB | K1 |
| 1 | SW_Wuerth_450301014042 | Button_Switch_THT:SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | SW1 |
| 1 | X0202MN | Package_TO_SOT_SMD:SOT-223 | Q14 |
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Questions
How big is the PowerMonitor PCB?
It measures 100 × 100 mm and has 4 copper layers, 1.6 mm thick.
What parts does the PowerMonitor use?
157 parts, built around the LM358, INA129P, LM393 and AO3400A. 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 PowerMonitor KiCad files?
From the steewbsd/gilgamesh repository on GitHub, at the commit this page was made from: the board is hw/PowerMonitor/PowerMonitor.kicad_pcb and its schematic hw/FlightManagement/Camera.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PowerMonitor design in my own project?
Its repository states no licence, so its author keeps all rights: ask steewbsd before reusing the design.