Metering module
About the Metering module
Metering 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 35 components from 18 distinct parts.
Other key parts include the LTV-817S, BA033CC0FP-E2, MAX3486 and MCP23009-E_SS. By type, the board carries 9 resistors, 7 capacitors, 6 ICs, 6 diodes, 4 connectors and 2 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 Metering module
Metering module bill of materials (BOM)
35 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | LTV-817S | SMDIP-4_W9.53mm | U1, U2 |
| 1 | BA033CC0FP-E2 | TO-252-3_TabPin2 | U3 |
| 2 | MAX3486 | SOIC-8_3.9x4.9mm_P1.27mm | U4, U5 |
| 1 | MCP23009-E_SS | SOP65P780X200-20N | U6 |
| 2 | MMBT3904 | SOT-23 | Q1, Q2 |
| 1 | North | PHOENIX_1727078 | J1 |
| 1 | South | PHOENIX_1727078 | 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 | BAV303 | D_MicroMELF | D3, D4 |
| 2 | D_TVS | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D7, D8 |
| 7 | 100nF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C3, C4, C5, C6, C7 |
| 4 | 220R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R10, R11 |
| 2 | 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R3, R4 |
| 3 | 10k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R8, R9 |
Metering 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.
Metering module: common questions
How big is the Metering module?
The Metering module measures 86 × 31 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Metering module?
35 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the Metering 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 Metering 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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