2 layers29 × 17.8 mm
An in breakout
capconix/PiADC2
PiADC open source project successor, the PiADC2 - A simple data acquisition board for use with the model B Raspberry Pis
4 parts1
2 layers65 × 56 mm
PiADC2
capconix/PiADC21PiADC open source project successor, the PiADC2 - A simple data acquisition board for use with the model B Raspberry Pis
- Size
- 65 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 72
- Nets
- 90
- Pads
- 288
- Tracks, vias
- 453, 29
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 7 Jan 2020
- Updated
- 21 Feb 2020
Overview
PiADC2 is an open-source printed circuit board by capconix, from the capconix/PiADC2 repository on GitHub. It is a 2-layer board of 65 × 56 mm with 72 parts on 90 nets, routed with 453 tracks and 29 vias.
It is built around the ADS1115IDGS, MPL3115A2R1 and HCPL2631M, with the 24LC16B/P, TCA9517D and BAT54S among its other parts. Its parts include 29 resistors, 11 capacitors, 10 diodes, 9 ICs and 6 connectors.
Main components
6
ADS1115IDGS
MSOP10Ultra-Small, Low-Power, 4 Channels 16-Bit Analog-to-Digital Converter with Internal ReferenceTexas InstrumentsUncategorised
MPL3115A2R1
LGA-8(3x5)-40℃~+85℃ 0.05Kpa 0.4Kpa 1.95V~3.6V 1s 2uA 50Kpa~1.1bar I2C LGA-8(3x5) Pressure Sensors ROHSNXP SemiconductorsPressure Sensors
HCPL2631M
DIP-8-40℃~+85℃ 1.45V 100ns 100ns 10Mbps 10kV/us 2 20mA 25mA 4.5V~5.5V 5V 5kV DC DIP-8 Logic Output Optoisolators ROHSonsemiLogic Output Optoisolators24LC16B/P
PDIP-81,000,000 cycles 16Kbit 2.5V~5.5V 200 Years 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROM
TCA9517D
SOIC-8-40℃~+85℃ 1 2 2.7V~5.5V 6mA 900mV~5.5V Bidirectional Buffers Open-drain Output enable high-impedance SMBus、I2C SOIC-8 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
BAT54S
SOT-231 Pair Series Connection 1V@100mA 200mA 2uA@25V 30V 600mA SOT-23 Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdPiADC2
PiADC open source project successor, the PiADC2 - A simple data acquisition board for use with the model B Raspberry Pis. This is the low speed version capable of 10 - 100 samples per second on all channels.
When this project is completed I'll be moving onto a PiADC2-HS that should hopefully be closer to 10K samples per second across 8 or 16 channels.
This is currrently an untested project
License : This project contains both hardware and software elements. They have been separated by two sub-folders an accompanied by their own licensing. Software portions of this project are protected under the GPL version 3 and Hardware portions of this project are protected under the CERN OHL version 1.2.
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | 10K | Resistor_SMD:R_0603_1608Metric | R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R28 +3 |
| 8 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C3, C4, C5, C6, C7, C8, C10, C11 |
| 8 | 1K | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R7, R8, R9, R10 |
| 8 | BAT54S | Package_TO_SOT_SMD:SOT-23 | D1, D2, D3, D4, D5, D6, D7, D8 |
| 2 | 470 | Resistor_SMD:R_0603_1608Metric | R26, R27 |
| 2 | ADS1115IDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U1, U3 |
| 2 | C_Small | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | HCPL2631M | Package_DIP:DIP-8_W7.62mm_LongPads | U7, U8 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_TL3305A | SW1, SW2 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 24LC16 | Package_SO:SO-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | ADCIN1 | AMPHENOL_75869-332LF:AMPHENOL_75869-332LF | J2 |
| 1 | ADCIN2 | AMPHENOL_75869-332LF:AMPHENOL_75869-332LF | J3 |
| 1 | AUX_POWER | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J5 |
| 1 | Battery_Cell | BH401:BH401 | BT1 |
| 1 | Crystal | Crystal:Crystal_DS26_D2.0mm_L6.0mm_Horizontal_1EP_style2 | Y1 |
| 1 | ENABLE_CAL | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | JP1 |
| 1 | I2C_OUT | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | ISO_IN | OSTVN254:8POS | J4 |
| 1 | LED1 | LED_SMD:LED_0603_1608Metric | D9 |
| 1 | LED2 | LED_SMD:LED_0603_1608Metric | D10 |
| 1 | MCP23008T-E_SS | Package_SO:SSOP-20_5.3x7.2mm_P0.65mm | U6 |
| 1 | MCP79401-I_SN | Package_SO:SO-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | MPL3115A2 | MPL3115A2:MPL3115A2 | U9 |
| 1 | Pi GPIO | raspberry_pi:pi_b_hat | J1 |
| 1 | SYM_Magnet_Small | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | LOGO2 |
| 1 | SYM_Magnet_Small | CapConiX_Logos:CapConiX_Logo_10_7 | LOGO1 |
| 1 | TCA9517 | Package_SO:MSOP-8_3x3mm_P0.65mm | U2 |
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Questions
How big is the PiADC2 PCB?
It measures 65 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PiADC2 use?
72 parts, built around the ADS1115IDGS, MPL3115A2R1, HCPL2631M and 24LC16B/P. 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 PiADC2 KiCad files?
From the capconix/PiADC2 repository on GitHub, at the commit this page was made from: the board is hardware/daq_board/PiADC2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the PiADC2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask capconix before reusing the design.