4 layers130 × 74.7 mm
Stima V4 Slave R1 1
r-map/rmap
rete monitoraggio ambientale partecipativo documentation at https://doc.rmap.cc
289 parts55
2 layers142.7 × 21.3 mm
I2c hub
r-map/rmap55rete monitoraggio ambientale partecipativo documentation at https://doc.rmap.cc
- Size
- 142.7 × 21.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 120
- Nets
- 20
- Pads
- 225
- Tracks, vias
- 561, 24
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 23 Jul 2015
- Updated
- 2 Nov 2026
Overview
I2c hub is an open-source printed circuit board by r-map, from the r-map/rmap repository on GitHub. It is a 2-layer board of 142.7 × 21.3 mm with 120 parts on 20 nets, routed with 561 tracks and 24 vias.
It is built around the ESDA6V1-5SC6 and RJ45. Its parts include 60 connectors, 6 ICs and 4 capacitors. It belongs with the sensors and measurement boards of this library.
Main components
2README
README.mdDescription
software to collect weather data contributed by citizens; to make these data available for weather services and homeland security; to provide feedback to the data contributors so that they have the tools to check and improve their data quality
Stima open source hardware datalogger
RMAP server software
Parts
120| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 3V3 | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | P3, P8, P13, P17, P21, P27, P30, P33, P36, P39, P44, P48, P52, P57, P62 |
| 15 | 5V | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | P1, P6, P11, P15, P19, P24, P28, P31, P34, P37, P42, P46, P50, P55, P60 |
| 15 | SEL | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | P2, P7, P12, P16, P20, P25, P29, P32, P35, P38, P43, P47, P51, P56, P61 |
| 10 | CONN_01X04 | w_pin_strip:pin_strip_4 | P4, P10, P14, P18, P23, P45, P49, P53, P59, P63 |
| 5 | RJ45 | Connect:RJ45_8 | J1, J2, J3, J4, J5 |
| 4 | 10uF | w_smd_cap:c_1206 | C1, C2, C3, C4 |
| 4 | ESDA6V1-5SC6 | w_smd_trans:sot23-6 | U3, U4, U5, U6 |
| 2 | LM317_SOT223 | w_smd_trans:sot223 | U1, U2 |
The 70 most common of 120 parts.
Questions
How big is the I2c hub PCB?
It measures 142.7 × 21.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the I2c hub use?
120 parts, built around the ESDA6V1-5SC6 and RJ45. 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 I2c hub KiCad files?
From the r-map/rmap repository on GitHub, at the commit this page was made from: the board is kicad/stima_v2/i2c_hub/i2c_hub.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the I2c hub design in my own project?
Its repository states no licence, so its author keeps all rights: ask r-map before reusing the design.
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