2 layers85 × 40 mm
2 layers
Ctd double isolator
Sailowtech-draft/Sailowtech-CTD2- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 22
- Pads
- 96
- Tracks, vias
- 244, 9
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 31 May 2024
- Updated
- 1 Nov 2025
Overview
Ctd double isolator is an open-source printed circuit board by Sailowtech-draft, from the Sailowtech-draft/Sailowtech-CTD repository on GitHub. It is a 2-layer board with 26 parts on 22 nets, routed with 244 tracks and 9 vias.
It is built around the ADM3260ARSZ. Its parts include 10 resistors, 6 capacitors, 4 ICs and 2 connectors. It belongs with the interfaces and adapters boards of this library.
Main components
1README
README.mdSailowtech-CTD - Low-Tech CTD Probe
Welcome on the repository of the Sailowtech CTD Project, an affordable and open-source CTD probe tailored for scientific expeditions.
Why does this project exist?
After all, Open Source CTD probes already exist? Indeed, there are some great projects like Open CTD or CTDizzle, but we wanted something more tailored for mid to long term expeditions while allowing a modularity in the embedded sensors. Therefore, we aim to develop a project around a main electronic core and auxiliary cards that can be swapped depending on the research interest. For the moment, we propose a core based on a Raspberry PI Zero 2 W and an auxiliary cards for 2 Atlas Scientific Sensors (Conductivity, Temperature, Dissolved Oxygen, pH...).
Issues
If you encounter any issues, please use the Issue tracker on GitHub. Please note that this project is still in the development phase and currently undergoing testing.
Full documentation
The full documentation is accessible under https://sailowtech.github.io/Sailowtech-CTD/
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 4.7K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R9 |
| 3 | 0.1uF | Capacitor_SMD:C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | C1, C3, C5 |
| 3 | 10uF | Capacitor_SMD:C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | C2, C4, C6 |
| 2 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R10 |
| 2 | ADM3260ARSZ | Atlas-Scientific:RS_20_ADI | U1, U2 |
| 1 | Conn_01x04_Male | Connector_JST:JST_XH_S4B-XH-A-1_1x04_P2.50mm_Horizontal | J1 |
| 1 | Screw_Terminal_01x04 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-4-2.54_1x04_P2.54mm_Horizontal | J2 |
| 1 | ~ | Atlas-Scientific:Atlas Scientific RTD Temperature Circuit | U4 |
| 1 | ~ | Atlas-Scientific:Atlas Scientific Dissolved Oxygen | U3 |
The 22 most common of 26 parts.
More from Sailowtech-draft/Sailowtech-CTD
2- 2 layers85 × 80 mm
Similar boards
- 2 layers68 × 42 mm
K40-current sensor
MikonosII/k40-laser-panel
One small board that replaces the two-module build in docs/tube-current-sensor.md. It does the same job with the same chips (INA226 + ADM3260) and needs no firmware changes: the panel finds it at address 0x40.
28 parts - 2 layers57.3 × 19 mm
- 2 layers98 × 59.5 mm
MCP23017 PCB
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
26 parts915 - 2 layers142.9 × 98.5 mm
- 2 layers86.1 × 86.1 mm
- 2 layers103.8 × 50 mm
Galagino pcb set
harbaum/galagino
A Galaga, Pac-Man and Donkey Kong arcade emulator for the ESP32
26 parts558 - 2 layers20.3 × 34.8 mm
L0 ESP32
Luos-io/luos_engine
Open-source and real-time orchestrator for cyber-physical-systems, to easily design, test and deploy embedded applications and digital twins.
26 parts546MIT - 2 layers40.6 × 50.8 mm
WALTsm
google/walt
A device for measuring latency of physical sensors and outputs on phones and computers
26 parts474Apache-2.0
Questions
What parts does the Ctd double isolator use?
26 parts, built around the ADM3260ARSZ. 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 Ctd double isolator KiCad files?
From the Sailowtech-draft/Sailowtech-CTD repository on GitHub, at the commit this page was made from: the board is hardware/ctd-double-isolator/ctd-double-isolator.kicad_pcb and its schematic hardware/ctd-base-without-resistor-as-ordered/ctd-base.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ctd double isolator design in my own project?
Its repository states no licence, so its author keeps all rights: ask Sailowtech-draft before reusing the design.