JackToaster/pressure-sensor-interface8x pressure sensor and 8x solenoid valve USB interface
Pressure sensor interface is an open-source printed circuit board by JackToaster, from the JackToaster/pressure-sensor-interface repository on GitHub. It is a 4-layer board of 100 × 53 mm with 194 parts on 154 nets, routed with 1,596 tracks and 256 vias.
It is built around the STM32F103C8T6, HX711 and AMS1117-3.3, with the AO3400A, BAT41 and MMBT3906 among its other parts. Its parts include 66 capacitors, 48 resistors, 18 ICs, 18 diodes and 16 transistors. It belongs with the sensors and measurement and interfaces and adapters boards and the STM32 boards of this library.
This repository contains PCB designs & firmware (WIP) for an 8-channel USB pressure sensor/solenoid valve driver. This was designed for experiments with extremely low-cost pneumatic control systems.
8x pressure sensors
8x Solenoid Valve Drivers
STM32F103 Microcontroller + USB-C
Host software
| Qty | Value | Footprint | References |
|---|---|---|---|
| 45 | 100n | Capacitor_SMD:C_0603_1608Metric | C12, C13, C15, C17, C18, C19, C20, C22, C24, C25, C26, C27, C29, C31, C32, C33 +29 |
| 16 | 10u | Capacitor_SMD:C_0603_1608Metric | C14, C16, C21, C23, C28, C30, C35, C37, C42, C44, C49, C51, C56, C58, C63, C65 |
| 11 | 4k7 | Resistor_SMD:R_0603_1608Metric | R2, R4, R23, R26, R29, R32, R35, R38, R41, R44, R47 |
| 9 | CUI TB003-500-P02BE | CUI_TB003-500-P02BE:CUI_TB003-500-P02BE | J2, J3, J4, J5, J6, J7, J8, J9, J10 |
| 9 | Red | LED_SMD:LED_0603_1608Metric | D4, D6, D8, D10, D12, D14, D16, D18, D19 |
| 8 | 100 | Resistor_SMD:R_0603_1608Metric | R21, R24, R27, R30, R33, R36, R39, R42 |
| 8 | 10k | Resistor_SMD:R_0603_1608Metric | R22, R25, R28, R31, R34, R37, R40, R43 |
| 8 | 20k | Resistor_SMD:R_0603_1608Metric | R5, R7, R9, R11, R13, R15, R17, R19 |
| 8 | 3u3 | Inductor_SMD:L_0603_1608Metric | L1, L2, L3, L4, L5, L6, L7, L8 |
| 8 | 8k2 | Resistor_SMD:R_0603_1608Metric | R6, R8, R10, R12, R14, R16, R18, R20 |
| 8 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16 |
| 8 | BAT41 | Diode_SMD:D_SOD-123 | D3, D5, D7, D9, D11, D13, D15, D17 |
| 8 | HX711 | Package_SO:SOP-16_3.9x9.9mm_P1.27mm | U4, U6, U8, U10, U12, U14, U16, U18 |
| 8 | LWP040 | Pressure_Sensor_SOP6:SOIC-6-Pressure-Sensor | U3, U5, U7, U9, U11, U13, U15, U17 |
| 8 | MMBT3906 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 4 | M3 | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2, H3, H4 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 20R | Resistor_SMD:R_0603_1608Metric | R45, R46 |
| 2 | 30p | Capacitor_SMD:C_0603_1608Metric | C10, C11 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R1, R3 |
| 1 | 100R@100MHz | Resistor_SMD:R_0805_2012Metric | FB1 |
| 1 | 33R | Resistor_SMD:R_0603_1608Metric | R48 |
| 1 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 8MHz | Crystal:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | LOGO | pretzel:pretzel | G*** |
| 1 | STM32F103C8T6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP2 |
| 1 | TC2030-NL | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J11 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | Yellow | LED_SMD:LED_0603_1608Metric | D2 |
It measures 100 × 53 mm and has 4 copper layers, 1.6 mm thick.
194 parts, built around the STM32F103C8T6, HX711, AMS1117-3.3 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.
From the JackToaster/pressure-sensor-interface repository on GitHub, at the commit this page was made from: the board is pressure-sensor-interface.kicad_pcb and its schematic PressureSensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask JackToaster before reusing the design.
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