2 layers77 × 32 mm
BananaSchplit
pms67/BananaSchplit
Single rail DC (<12V) to split rail DC supply (+/-12V and +5V).
53 parts66MIT
2 layers100 × 100 mm
SqueezeAMPagain
hallo-alex/SqueezeAMPagainAs github annoys me with their 2FA policy I'm moving this to codeberg
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 228
- Nets
- 159
- Pads
- 827
- Tracks, vias
- 1,860, 330
- Pours
- 47
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 17 Jun 2024
- Updated
- 13 Aug 2025
Overview
SqueezeAMPagain is an open-source printed circuit board by hallo-alex, from the hallo-alex/SqueezeAMPagain repository on GitHub. It is a 2-layer board of 100 × 100 mm with 228 parts on 159 nets, routed with 1,860 tracks and 330 vias.
It is built around the ESP32-WROVER-E(4MB), TAS5756MDCA and TPS5430DDA, with the AMS1117-3.3, AO3401A and B5819W among its other parts. Its parts include 93 capacitors, 47 resistors, 13 transistors, 10 diodes and 10 connectors. It belongs with the ESP32 and RP2040 boards of this library.
Main components
6
ESP32-WROVER-E(4MB)
SMD,18x31.4mmSMD,18x31.4mm WiFi Modules ROHSEspressif SystemsWiFi ModulesTAS5756MDCA
HTSSOP-48-EP-6.1mmConfigurable output topology、Digital programmable gain、Built-in audio processing HTSSOP-48-EP-6.1mm Audio Amplifiers ROHSTexas InstrumentsAudio Amplifiers
TPS5430DDA
ESOP-8-40℃~+125℃@(TJ) 1 1.221V~32.04V 3A 4.4mA 5.5V~36V 500kHz Adjustable Buck Buck Built-in No ESOP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
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
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
README
Readme.mdSqueezeAMPagain
As github annoys me with their 2FA policy I'm moving this to codeberg
Parts
228| Qty | Value | Footprint | References |
|---|---|---|---|
| 38 | 100n | Capacitor_SMD:C_0603_1608Metric | C3, C4, C12, C18, C22, C24, C26, C28, C31, C33, C34, C36, C39, C40, C43, C44 +22 |
| 20 | 10k | Resistor_SMD:R_0603_1608Metric | R2, R3, R12, R22, R23, R25, R27, R28, R29, R31, R35, R36, R37, R38, R39, R41 +4 |
| 19 | 2.2u/25V | Capacitor_SMD:C_0805_2012Metric | C1, C2, C5, C7, C8, C10, C20, C23, C27, C30, C37, C55, C59, C65, C81, C85 +3 |
| 13 | 10u/50V | Capacitor_SMD:C_1206_3216Metric | C17, C21, C25, C29, C32, C35, C61, C62, C63, C66, C76, C92, C93 |
| 13 | 33 | Resistor_SMD:R_0402_1005Metric | R1, R9, R10, R11, R13, R14, R15, R16, R17, R18, R19, R20, R21 |
| 8 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q2, Q3, Q4, Q6, Q7, Q10, Q12, Q13 |
| 6 | 470u | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm_P7.50mm | C11, C13, C14, C15, C16, C19 |
| 6 | 47uF / 10V | Capacitor_SMD:C_1206_3216Metric | C72, C75, C77, C78, C79, C82 |
| 6 | 600Ω@100MHz 500mA | Inductor_SMD:L_0805_2012Metric | FB1, FB2, FB3, FB4, FB5, FB6 |
| 6 | ~ | TestPoint:TestPoint_Pad_D1.0mm | TP6, TP7, TP8, TP9, TP10, TP11 |
| 5 | Mono | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4, JP5, JP6, JP7, JP8 |
| 5 | Q_NPN_BEC | Package_TO_SOT_SMD:SOT-23 | Q1, Q5, Q8, Q9, Q11 |
| 4 | 150k | Resistor_SMD:R_0603_1608Metric | R24, R26, R30, R40 |
| 4 | 220n | Capacitor_SMD:C_0603_1608Metric | C38, C42, C46, C50 |
| 4 | 4.7uH/6.0A | Inductor:L_Radial_D12.0mm_P5+6+7.00mm_Fastron_11P | L1, L2, L3, L4 |
| 4 | 470n/50V | Capacitor_SMD:C_0805_2012Metric | C41, C45, C49, C53 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | B5819W | Diode_SMD:D_SOD-123 | D1, D3, D4 |
| 3 | Conn_01x02_Pin | Connector_Phoenix_MC:PhoenixContact_MC_1,5_2-G-3.5_1x02_P3.50mm_Horizontal | J1, J2, J7 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D5, D6, D7 |
| 3 | min. 1.4V_{ff} | LED_SMD:LED_0603_1608Metric | D8, D9, D10 |
| 2 | 15k | Resistor_SMD:R_0603_1608Metric | R6, R33 |
| 2 | 330 | Resistor_SMD:R_0603_1608Metric | R43, R44 |
| 2 | 4.7uH/4.0A | Inductor:L_Radial_D12.0mm_P5+6+7.00mm_Fastron_11P | L5, L7 |
| 2 | Conn_01x06_Pin | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J3, J9 |
| 2 | LV On | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP9, JP10 |
| 2 | MountingHole | MountingHole:MountingHole_2.5mm | H5, H6 |
| 2 | NetTie_2 | NetTie:NetTie-2_SMD_Pad2.0mm | NT1, NT2 |
| 2 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP3, JP14 |
| 2 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2 |
| 1 | 10nF 78mOhm | Capacitor_SMD:C_0603_1608Metric | C69 |
| 1 | 150p | Capacitor_SMD:C_0603_1608Metric | C70 |
| 1 | 1n | Capacitor_SMD:C_0603_1608Metric | C73 |
| 1 | 22k | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 33uH 120mOhm | Inductor_SMD:L_Chilisin_BMRB00060612 | L6 |
| 1 | 39k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | 3V3_{SW} | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | 4.7k | Resistor_SMD:R_0603_1608Metric | R34 |
| 1 | 49.9k | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 560R | Resistor_SMD:R_0603_1608Metric | R32 |
| 1 | 75k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal | J6 |
| 1 | CP2102N-Axx-xQFN28 | Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U7 |
| 1 | Conn_02x07_Odd_Even | Connector_IDC:IDC-Header_2x07_P2.54mm_Vertical | J10 |
| 1 | Conn_02x10_Odd_Even | Connector_IDC:IDC-Header_2x10_P2.54mm_Horizontal | J5 |
| 1 | ESP32-WROVER-E | esp32:ESP32-WROVER-E_ThermalVias | U2 |
| 1 | Mclk | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | P On | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP12 |
| 1 | PVDD | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | RPP | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP11 |
| 1 | RaspberryPi_Pico_W | pipico_reduced:RaspberryPi_Pico_Common_THT_nokeepout | U3 |
| 1 | Raspberry_Pi_2_3 | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J4 |
| 1 | SS34 550mV 2A | Diode_SMD:D_SMA | D2 |
| 1 | SW_MEC_5E | Button_Switch_SMD:SW_Push_1P1T_XKB_TS-1187A | SW1 |
| 1 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged2Bar_RoundedPad1.0x1.5mm | JP13 |
| 1 | TAS5756M | TSSOP48EP:TSSOP-48_6.1x12.5mm_P0.5mm_EP | U1 |
| 1 | TPS5430DDA | Package_SO:TI_SO-PowerPAD-8_ThermalVias | U6 |
| 1 | TSOP21xx | OptoDevice:Vishay_MOLD-3Pin | U4 |
| 1 | USB_B_Micro | usb_micro_xnj073:usb_micro_xnj_073 | J8 |
| 1 | V_{IN} | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | ~ | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP12 |
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Questions
How big is the SqueezeAMPagain PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SqueezeAMPagain use?
228 parts, built around the ESP32-WROVER-E(4MB), TAS5756MDCA, TPS5430DDA 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 SqueezeAMPagain KiCad files?
From the hallo-alex/SqueezeAMPagain repository on GitHub, at the commit this page was made from: the board is SqueezeAMPagain/SqueezeAMPagain.kicad_pcb and its schematic SqueezeAMPagain/SqueezeAMPagain.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SqueezeAMPagain design in my own project?
Its repository states no licence, so its author keeps all rights: ask hallo-alex before reusing the design.