2 layers63 × 49.2 mm
STM32F4XX
gianlucarenzi/STM32F4XX
A generic development board for the STM32F401 microcontroller.
42 parts2GPL-3.0
2 layers90 × 61 mm
Imp measure
LikeFall123/Impedance_MeasurementProject laboratory excercise
- Size
- 90 × 61 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 73
- Nets
- 92
- Pads
- 268
- Tracks, vias
- 510, 138
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 11 Sep 2024
- Updated
- 27 Feb 2025
Overview
Imp measure is an open-source printed circuit board by LikeFall123, from the LikeFall123/Impedance_Measurement repository on GitHub. It is a 2-layer board of 90 × 61 mm with 73 parts on 92 nets, routed with 510 tracks and 138 vias.
It is built around the STM32F401RCT6 and AMS1117-3.3. Its parts include 34 capacitors, 15 resistors, 8 connectors, 5 ICs and 1 diode. It belongs with the STM32 boards of this library.
Main components
2
STM32F401RCT6
LQFP-64(10x10)-40℃~+85℃ 1.7V~3.6V 12bit 256KB 32 Bit 50 64KB 84MHz ARM Cortex-M4 Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdImpedance Measurement
Project laboratory excercise - BME 2023/24/2 semester
The STM32F407 MCU calculates the impedance of the selected passive component, by measuring the excitation signal and the response.
Used techniques:
-ADC + DMA
-Real time Fourier transform (armmath.h)
-Model based sine parameter estimation
Parts
73| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 1u | Capacitor_SMD:C_0805_2012Metric | C6, C13, C14, C21, C22, C26, C27, C28, C30, C31, C33 |
| 7 | 100n | Capacitor_SMD:C_0805_2012Metric | C4, C8, C9, C10, C11, C15, C25 |
| 4 | 10M | Resistor_SMD:R_0805_2012Metric | R12, R13, R14, R15 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R6 |
| 4 | 120R | Inductor_SMD:L_0805_2012Metric | FB1, FB2, FB3, FB4 |
| 4 | MountingHole | MountingHole:MountingHole_2mm | H1, H2, H3, H4 |
| 3 | 10n | Capacitor_SMD:C_0805_2012Metric | C12, C23, C32 |
| 3 | 10u | Capacitor_SMD:C_0805_2012Metric | C3, C7, C35 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric | R8, R10, R11 |
| 3 | 1k5 | Resistor_SMD:R_0805_2012Metric | R1, R5, R9 |
| 3 | 1n | Capacitor_SMD:C_0805_2012Metric | C18, C19, C29 |
| 3 | Conn_01x10_Pin | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | J3, J5, J7 |
| 2 | 10p | Capacitor_SMD:C_0805_2012Metric | C16, C17 |
| 2 | 150u | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C20, C24 |
| 2 | 22u | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6, J8 |
| 1 | 330n | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 5k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J4 |
| 1 | Crystal | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | DAC80501ZDGST | SamacSys_Parts:SOP50P490X110-10N | IC1 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | MAX660MX_NOPB | SamacSys_Parts:SOIC127P600X175-8N | IC2 |
| 1 | MC33202DR2G | SamacSys_Parts:SOIC127P600X175-8N | IC4 |
| 1 | STM32F401RCT6 | Package_QFP:LQFP-64_10x10mm_P0.5mm | U2 |
| 1 | SW_SPDT | Button_Switch_THT:SW_Slide-03_Wuerth-WS-SLTV_10x2.5x6.4_P2.54mm | SW1 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Wuerth_629105150521 | J2 |
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Questions
How big is the Imp measure PCB?
It measures 90 × 61 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Imp measure use?
73 parts, built around the STM32F401RCT6 and AMS1117-3.3. 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 Imp measure KiCad files?
From the LikeFall123/Impedance_Measurement repository on GitHub, at the commit this page was made from: the board is imp_measure.kicad_pcb and its schematic imp_measure.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Imp measure design in my own project?
Its repository states no licence, so its author keeps all rights: ask LikeFall123 before reusing the design.