4 layers64.8 × 58.7 mm
Salp board
Jack-Cb/sensOrbPorted
Repository for undergraduate thesis code, documentation, and PCB design. Thesis link: https://ir.library.oregonstate.edu/concern/honors_college_theses/b5645158b?locale=en
61 parts
4 layers64.8 × 58.7 mm
Salp board
aeiou642/sensOrb2Initial commit
- Size
- 64.8 × 58.7 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 77
- Nets
- 70
- Pads
- 254
- Tracks, vias
- 532, 52
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 25 Feb 2025
- Updated
- 2 Jun 2026
Overview
Salp board is an open-source printed circuit board by aeiou642, from the aeiou642/sensOrb repository on GitHub. It is a 4-layer board of 64.8 × 58.7 mm with 77 parts on 70 nets, routed with 532 tracks and 52 vias.
It is built around the ATTINY3226-SU, DW01A and LD1117S33TR(MS), with the TP4057, IRLML6402 and BAT54CW among its other parts. Its parts include 23 capacitors, 11 resistors, 6 connectors, 5 ICs and 5 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
7
ATTINY3226-SU
SOIC-20-300mil1.8V~5.5V 12bit 18 20MHz 32KB AVR SOIC-20-300mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
DW01A
SOT-23-6L-40℃~+85℃ 1 2.5V 300mV~10V 3uA 4.3V Protection IC Support SOT-23-6L Battery Management ROHSPUOLOPBattery Management
LD1117S33TR(MS)
SOT-223-20℃~+125℃@(Ta) 1 1.4V@(1A) 12V 1A 2mA 3.3V Fixed Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsTP4057
SOT-23-6-40℃~+85℃ 1 25uA 4.24V 4V~6.5V Charging IC Lithium Battery Not supported SOT-23-6 Battery Management ROHSTECH PUBLICBattery Management
IRLML6402
SOT-23-55℃~+150℃ 1 P-Channel 1.3W 110pF 12nC 145pF 20V 3.7A 400mV 633pF 65mΩ@4.5V P-Channel SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
BAT54CW
SOT-323-3-65℃~+125℃ 1 Pair Common Cathode 1V@100mA 200mA 2uA@25V 30V 600mA SOT-323-3 Schottky Diodes ROHSDiodes IncorporatedSchottky Diodes
BZS55C5V1
1206Zener DiodesTaiwan Semiconductor
README
README.mdPlatformIO Notes:
- Install PIO via. VSCode and follow standard installation instructions
- In the platformio.ini file, change the following;
- upload_port to whatever port the Serial to UART for the UPDI is connected to
- monitor_port to whatever port the Serial to UART the actual serial monitor is connected to
Parts
77| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | +BAT1, DVDD1, I0, I1, PA1/MOSI/SDA/HSU_TX1, PA2/MISO/P71, PA3/SCK/P72, PA4/NSS/SCL/HSU_RX1, PA5/RSTPD_N1, PA7/IRQ1, PC1, PC2, PC3, RX1, TX1, TX2 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C18, C20, C21 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R9, R10 |
| 2 | .1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C7, C10 |
| 2 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7 |
| 2 | 100 nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8, C14 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C15, C22 |
| 2 | 200p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 220p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6 |
| 2 | 22p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12, C13 |
| 2 | 560nH | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1, L2 |
| 2 | ATTINY3226 | Connector_PinSocket_2.54mm:PinSocket_2x09_P2.54mm_Vertical | J1, J8 |
| 2 | IRLML6402 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D2, D3 |
| 1 | 0.1 uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C23 |
| 1 | 1.6K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 10 uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C17 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C16 |
| 1 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 1n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C19 |
| 1 | 27.12 MHz | Crystal:Crystal_SMD_SeikoEpson_TSX3225-4Pin_3.2x2.5mm_HandSoldering | Y2 |
| 1 | 3.9k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 4.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 4.7u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 68 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8 |
| 1 | APFA3010 | LED_SMD:LED_Kingbright_APFA3010_3x1.5mm_Horizontal | D5 |
| 1 | ATtiny3226-S | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U3 |
| 1 | BAT54CW | Package_TO_SOT_SMD:SOT-323_SC-70 | D4 |
| 1 | BZS55C5V1 | Diode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1 |
| 1 | Battery | Battery:BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J4 |
| 1 | DW01A | Package_TO_SOT_SMD:SOT-23-6 | U6 |
| 1 | LD1117S33TR | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | PN5321A3HN/C106_55 | PN532:QFN40G-0.5-6X6MM | U2 |
| 1 | POWER | Connector_PinSocket_2.54mm:PinSocket_2x03_P2.54mm_Vertical | J10 |
| 1 | POWER_JUMPER | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J9 |
| 1 | SW_DPDT_x2 | Button_Switch_THT:SW_CK_JS202011CQN_DPDT_Straight | SW2 |
| 1 | TP4057 | Package_TO_SOT_SMD:TSOT-23-6 | U4 |
| 1 | ~ | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J12 |
Questions
How big is the Salp board PCB?
It measures 64.8 × 58.7 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Salp board use?
77 parts, built around the ATTINY3226-SU, DW01A, LD1117S33TR(MS) and TP4057. 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 Salp board KiCad files?
From the aeiou642/sensOrb repository on GitHub, at the commit this page was made from: the board is Schematics & PCB/sensOrb/salp_board.kicad_pcb and its schematic Documentation/PN532/nfc_breakout.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Salp board design in my own project?
Its repository states no licence, so its author keeps all rights: ask aeiou642 before reusing the design.
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