M bus module
About the M bus module
M bus module is an open source PCB design by inoa-io, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 86 × 31 mm, with 56 components from 31 distinct parts.
Other key parts include the BA033CC0FP-E2, MAX3486, VOM452T, MC33072ADR2G and LM4040DIM3-5.0/NOPB. By type, the board carries 25 resistors, 10 capacitors, 7 diodes, 6 ICs, 4 connectors and 3 transistors.
It belongs with the rf & radio designs in this gallery.
From the project
Satellite Hardware Project and Documentation
The Inoa Satellite is a lightweight and secure gateway for your fuse box or industrial environment.
Please see our Project Pages for details.
There is a huge amount of IoT gateways out there, but none of these fulfill completely all of our design goals:
Usage in a rough industrial environment Hardware driven security (HSM) Inexpensive hardware to be able to finance a huge fleet of devices Low energy consumption Fuse box casing (DIN rail) Small (2 FE / 36 mm) to allow mounting in existing fuse boxes Extendable design to be future proof Modular design to adapt hardware to use cases and keep…
Main components on the M bus module
M bus module bill of materials (BOM)
56 components, 31 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BA033CC0FP-E2 | TO-252-3_TabPin2 | U1 |
| 1 | MAX3486 | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 2 | VOM452T | SOIC127P700X230-5N | U3, U4 |
| 1 | MC33072ADR2G | SOIC127P600X175-8N | U5 |
| 1 | LM4040DIM3-5.0/NOPB | SOT-23 | U6 |
| 1 | BC856B-13-F | SOT-23 | Q1 |
| 1 | BC846B-7-F | SOT-23 | Q2 |
| 1 | FDN5618P | SOT-23 | Q3 |
| 1 | North | PHOENIX_1935200 | J1 |
| 1 | South | PHOENIX_1935200 | J2 |
| 1 | West | PinHeader_1x14_P2.54mm_Vertical | J3 |
| 1 | East | PinHeader_1x14_P2.54mm_Vertical | J4 |
| 1 | 25V/1A | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | 25V | D_SOD-523 | D1 |
| 1 | 1N5819 | D_SOD-323_HandSoldering | D2 |
| 2 | D_TVS | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3, D4 |
| 2 | BZT52C12-7-F | D_SOD-123 | D5, D6 |
| 1 | BZT52C2V7-7-F | D_SOD-123 | D7 |
| 4 | 100nF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4 |
| 1 | 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 0u1 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C7, C8, C10 |
| 1 | 47uF | CP_Elec_6.3x7.7 | C9 |
| 3 | 10k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R4 |
| 2 | 220R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R5 |
| 5 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R10, R14, R17 |
| 5 | 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R15, R18, R20, R24 |
| 3 | 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R13, R19 |
| 2 | 180k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11, R12 |
| 1 | 4k7 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R16 |
| 3 | 20k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21, R22, R25 |
| 1 | 100R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R23 |
M bus module design files
The KiCad project lives in the inoa-io/satellite repository on GitHub; these links point at the commit this page was built from.
M bus module: common questions
How big is the M bus module?
The M bus module measures 86 × 31 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the M bus module?
56 components, from 31 distinct parts. The full bill of materials is listed on this page.
Where can I download the M bus module design files?
From the inoa-io/satellite repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the M bus module design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which inoa-io chose for the repository.
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