4 layers101 × 175 mm
4 layers90 × 70 mm
Arm Schematic
ICRS/IPRL-Electronics-Hardware1- Size
- 90 × 70 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 90
- Nets
- 108
- Pads
- 400
- Tracks, vias
- 773, 223
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 19 Dec 2024
- Updated
- 5 Feb 2026
Overview
Arm Schematic is an open-source printed circuit board by ICRS, from the ICRS/IPRL-Electronics-Hardware repository on GitHub. It is a 4-layer board of 90 × 70 mm with 90 parts on 108 nets, routed with 773 tracks and 223 vias.
It is built around the ESP32-S3, ADS1115IDGS and W25Q16JVSSIQ, with the TXB0108DQSR, AMS1117-3.3 and USBLC6-2SC6 among its other parts. Its parts include 29 resistors, 21 capacitors, 20 connectors, 8 ICs and 3 diodes. It belongs with the ESP32 boards of this library.
Main components
8
ESP32-S3
QFN-56-EP(7x7)-40℃~+105℃ -98.4dBm 150Mbps 2.412GHz~2.484GHz 2.4GHz 21dBm 340mA 3V~3.6V 88mA SPI、USB、UART、ADC、I2C、I2S、PWM WiFi transceiver QFN-56-EP(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
ADS1115IDGS
MSOP10Ultra-Small, Low-Power, 4 Channels 16-Bit Analog-to-Digital Converter with Internal ReferenceTexas InstrumentsUncategorised
W25Q16JVSSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 10uA 133MHz 16Mbit 2.7V~3.6V 20 Years 3ms SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
TXB0108DQSR
SON-20(2x4)-40℃~+85℃ 1.2V~3.6V 1.65V~5.5V 100Mbps Bidirectional Decoupling、Auto Direction Detection、Power-Off Protection Tri-State SON-20(2x4) Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
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
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
MBRA340T3G
DO-214AC1 Independent 100A 3A 40V 450mV DO-214AC Schottky Diodes ROHSTokmasSchottky Diodes
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdIPRL-Electronics-Hardware
Parts
90| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | 10k | Resistor_SMD:R_0805_2012Metric | R10, R11, R12, R13, R14, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26 +7 |
| 9 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C3, C4, C10, C11, C12, C17, C18, C19, C20 |
| 5 | 1u | Capacitor_SMD:C_0805_2012Metric | C6, C9, C13, C16, C21 |
| 5 | Conn_01x04 | Connector_JST:JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical | J6, J11, J12, J15, J24 |
| 5 | Conn_01x05 | Connector_JST:JST_GH_BM05B-GHS-TBT_1x05-1MP_P1.25mm_Vertical | J2, J3, J4, J5, J16 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C1, C2, C5, C8 |
| 4 | Conn_01x02 | Connector_JST:JST_GH_BM02B-GHS-TBT_1x02-1MP_P1.25mm_Vertical | J7, J8, J9, J10 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | Conn_01x03 | Connector_JST:JST_GH_BM03B-GHS-TBT_1x03-1MP_P1.25mm_Vertical | J17, J21, J22 |
| 2 | 10p | Capacitor_SMD:C_0805_2012Metric | C14, C15 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R3, R9 |
| 2 | 5k1 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KSC6xxJ | SW1, SW2 |
| 2 | TXB0108DQSR | Package_SON:USON-20_2x4mm_P0.4mm | U5, U6 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric | C7 |
| 1 | 22 | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 2n | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | ADS1115IDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U7 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U9 |
| 1 | Conn_01x02 | Connector_AMASS:AMASS_XT30U-M_1x02_P5.0mm_Vertical | J13 |
| 1 | Conn_01x02 | Connector_AMASS:AMASS_XT60-M_1x02_P7.20mm_Vertical | J23 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | Y1 |
| 1 | ESP32-S3 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP4x4mm | U1 |
| 1 | LOGO | IPRL Footprints:IPRL_31mm | G*** |
| 1 | MBRA340T3G | Diode_SMD:D_SMA | D3 |
| 1 | TCA9548APWR | Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm | U4 |
| 1 | TYPE-C-31-M-12 | IPRL Footprints:TYPE-C-31-M-12 | J14 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | W25Q16JVSS | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U8 |
Questions
How big is the Arm Schematic PCB?
It measures 90 × 70 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Arm Schematic use?
90 parts, built around the ESP32-S3, ADS1115IDGS, W25Q16JVSSIQ and TXB0108DQSR. 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 Arm Schematic KiCad files?
From the ICRS/IPRL-Electronics-Hardware repository on GitHub, at the commit this page was made from: the board is PCBs/Arm Schematic/Arm Schematic.kicad_pcb and its schematic PCBs/Arm Schematic V2/Arm Schematic V2/Arm Schematic V2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Arm Schematic design in my own project?
Its repository states no licence, so its author keeps all rights: ask ICRS before reusing the design.
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