Pura mainboard-0805-0.3
About the Pura mainboard-0805-0.3 PCB
Pura mainboard-0805-0.3 is an open source PCB design by rvbcrs, published on GitHub. It is a 2-layer board measuring 50 × 50 mm, with 21 components from 18 distinct parts.
Other key parts include the CH224K, LM2596SX-5.0/NOPB, ADS1115IDGSR, TB6612FNG and B0505S-1WR3. By type, the board carries 6 ICs, 4 resistors, 3 capacitors, 2 LEDs, 1 connector and 1 diode.
It belongs with the iot & wireless and audio designs in this gallery.
From the project
GPIO6 en GPIO7 zijn vrije ADC1‑pinnen (geen WiFi‑conflict). De overige ADC1‑pinnen zijn in gebruik door QSPI‑display (21/39/40/45/47/48), touch I2C (4/8), motoren (9/14–18) en I2S‑speaker (2/41/42).
GPIO6 en GPIO7 zijn vrije ADC1‑pinnen (geen WiFi‑conflict). De overige ADC1‑pinnen zijn in gebruik door QSPI‑display (21/39/40/45/47/48), touch I2C (4/8), motoren (9/14–18) en I2S‑speaker (2/41/42).
Testen zonder probe: Verbind de BNC center pin met de BNC outer ring via een 10 kΩ weerstand → simuleert 0 mV (pH 7 / 0 mV ORP) → de display toont ~pH 7.0 en ~0 mV.
Main components on the Pura mainboard-0805-0.3
Pura mainboard-0805-0.3 bill of materials (BOM)
21 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CH224K WCH | CH224K | U1 |
| 1 | LM2596SX-5.0/NOPB LM2596S_5_0_UMW_ Texas Instruments | LM2596S_5_0_UMW | U2 |
| 1 | ADS1115IDGSR ADS1115IDGST Texas Instruments | ADS1115IDGST | U3 |
| 1 | TB6612FNG TB6612FNG_C_8_EL Toshiba | TB6612FNG_C_8_EL | U4 |
| 1 | B0505S-1WR3 B0505S_1WR3 MORNSUN | B0505S_1WR3 | U5 |
| 1 | ADUM1250ARZ ADUM1250ARZ_RL7 Analog Devices | ADUM1250ARZ_RL7 | U6 |
| 1 | TYPE-C-31-M-12 TYPE_C_16PIN_2MD_073_ HRO | TYPE_C_16PIN_2MD_073 | J1 |
| 1 | J_12V | pin_header_pinrow2_nopinlabels | J_12V |
| 1 | J_M1 | pin_header_pinrow2_nopinlabels | J_M1 |
| 1 | J_M2 | pin_header_pinrow2_nopinlabels | J_M2 |
| 1 | 150080GS75000 LED Wurth | led_0805_color(green) | LED1 |
| 1 | 150080BS75000 LED Wurth | led_0805_color(cyan) | LED2 |
| 1 | SS34-E3/57T D Vishay | SS34 | D1 |
| 1 | DJNR6045-330 33H FerroCore | inductor | L1 |
| 3 | 100nF | capacitor_0805 | C_ISO1, C_ISO2, C_VM2 |
| 1 | 24kΩ | resistor_res0805 | R_CFG1 |
| 1 | 2.2kΩ | resistor_res0805 | R_LED2 |
| 2 | 4.7kΩ | resistor_res0805 | R_SCL2, R_SDA2 |
Pura mainboard-0805-0.3 design files
The KiCad project lives in the rvbcrs/PoolLab repository on GitHub; these links point at the commit this page was built from.
Pura mainboard-0805-0.3: common questions
How big is the Pura mainboard-0805-0.3 PCB?
The Pura mainboard-0805-0.3 measures 50 × 50 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Pura mainboard-0805-0.3?
21 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Pura mainboard-0805-0.3 design files?
From the rvbcrs/PoolLab repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Pura mainboard-0805-0.3 design in my own project?
The repository has no license, so all rights stay with rvbcrs. Use it as a reference, and ask the author before reusing the design.
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