kopia lustrzana https://github.com/mobilinkd/NucleoTNC
Add some docs.
Rob Riggs
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# NucleoTNC Enclosure
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This work is licensed under a
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<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
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Creative Commons Attribution-ShareAlike 4.0 International License</a>.
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<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
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<img alt="Creative Commons License" style="border-width:0"
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src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" /></a><br />
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Please attribute the work to *Rob Riggs, WX9O, Mobilinkd LLC*.
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This is an enclosure for the NucleoTNC PCB. It uses a two-part extruded
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aluminum enclosure, SZOMK AK-C-C15 (26*71*100mm). This folder contains
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the faceplates for the enclosure. These are KiCAD components for the
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front and read faceplates. It also includes a spacer designed to raise
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the Nucleo32 board from the PCB so that it will fit into the enclosure.
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# NucleoTNC PCB
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This work is licensed under a
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<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
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Creative Commons Attribution-ShareAlike 4.0 International License</a>.
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<a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
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<img alt="Creative Commons License" style="border-width:0"
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src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" /></a><br />
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Please attribute the work to *Rob Riggs, WX9O, Mobilinkd LLC*.
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This directory contains the KiCAD files for the Nucleo TNC printed circuit
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board (PCB). This is a PCB for the [NucleoTNC breadboard project](http://www.mobilinkd.com/2019/06/24/nucleotnc/).
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The design goal is to allow experimenters to take their breadboard project
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and give it a more permanent home on a real printed circuit board.
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This PCB is designed to fit in the [enclosure](../../Enclosure/README.md) that is
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also available in this repository.
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Please refer to the [NucleoTNC breadboard project](https://nbviewer.jupyter.org/github/mobilinkd/NucleoTNC/blob/master/Build/NucleoTNC.ipynb)
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project for in-depth discussion of the design and theory of operation. We are
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only going to cover briefly the design differences below, then provide the full
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bill of materials (BOM) required to build the TNC.
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This repository also contains the open source firmware for the TNC. The
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Mobilinkd project on Github contains numerous other resources, including a
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Python-based configuration program.
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These PCBs can be purchased directly from the mobilinkd store.
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https://store.mobilinkd.com/collections/kits
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## Breadboard Differences
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This section covers the differences between the NucleoTNC breadboard project
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and the PCB version. The schematic is presented below.
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There are a few small differences in design.
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The one necessary change was to the 3.5mm jack. The breadboard module is
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inappropriate for a PCB design. The PCB uses a CUI SJ-43515TS or SJ-43514
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jack. Discovered after this choice was made is that CUI uses the same model
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number for both a through-hole component and a surface mount component. For
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this project you will need the through-hole part.
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IC sockets for the quad op-amp and EEPROM are recommended. Insert the ICs
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into the sockets rather than soldering these components directly on the PCB.
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There are two additional LEDs on the PCB. One indicates power. The other
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is there as an auxilliary indicator and is currently unused. These exist
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because the power LED and auxilliary LED on the Nucleo32 board are hidden
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when the PCB is mounted in an enclosure. Each require a 470 Ohm resistor.
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There is an external reset button. This is because the reset switch on the
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TNC is inaccessible when mounted in an enclosure. The reset button is a
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C&K PTS645VL58-2 LFS.
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And there are two additional capacitors on the power plane for added
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decoupling. These are not strictly necessary.
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We have changed the input coupling capacitor from 0.22uF to 1uF to improve
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the low frequency response of the TNC. This is now recommended for the
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breadboard version as well.
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Included in the enclosure components is a spacer PCB. This can be 3D-printed
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rather than made out of FR-4 PCB material. Two of these are needed to raise
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the Nucleo32 board off the PCB so that it will fit in the enclosure properly.
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You can see the two spacers in the rendering at the top of the page.
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The through-holes for the Nucleo board on the PCB are staggered. This allows
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for a press-fit of the Nucleo board into the PCB for testing. The Nucleo32 can
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be inserted into the PCB and should work without being soldered in. It will
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likely only work for a few insertions. And the Nucleo board should be soldered
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in place before installing it into the enclosure. If it comes out of the
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PCB while power is applied, there is risk of damage to the Nucleo board and
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the components on the PCB.
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## Bill of Materials
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| Manufacturer | Manufacturer Part Number | Description | Quantity | Unit Price | Extended Price |
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|-------------------------------------- |-------------------------- |---------------------------------- |---------- |------------ |---------------- |
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| CUI | SJ-43515TS | TRRS 3.5MM JACK THROUGH-HOLE | 1 | 1.08 | 1.08 |
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| Vishay Semiconductor Diodes Division | BAT85S-TAP | DIODE SCHOTTKY 30V 200MA DO35 | 2 | 0.38 | 0.76 |
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| STMicroelectronics | NUCLEO-L432KC | NUCLEO-32 STM32L432KC EVAL BRD | 1 | 10.99 | 10.99 |
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| Microchip Technology | MCP6004-I/P | IC OPAMP GP 4 CIRCUIT 14DIP | 1 | 0.45 | 0.45 |
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| Microchip Technology | 24LC32A-I/P | IC EEPROM 32K I2C 400KHZ 8DIP | 1 | 0.41 | 0.41 |
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| Microchip Technology | 2N7000-G | MOSFET N-CH 60V 0.2A TO92-3 | 2 | 0.38 | 0.76 |
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| Broadcom Limited | HLMP-1301 | LED RED DIFFUSED T-1 T/H | 1 | 0.41 | 0.41 |
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| Broadcom Limited | HLMP-1503 | LED GREEN DIFFUSED T-1 T/H | 1 | 0.41 | 0.41 |
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| Stackpole Electronics Inc | RNF18FTD100K | RES 100K OHM 1/8W 1% AXIAL | 3 | 0.1 | 0.30 |
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| Stackpole Electronics Inc | RNF14FTD10K0 | RES 10K OHM 1/4W 1% AXIAL | 1 | 0.1 | 0.10 |
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| Stackpole Electronics Inc | RNMF14FTC510R | RES 510 OHM 1/4W 1% AXIAL | 2 | 0.1 | 0.20 |
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| Stackpole Electronics Inc | RNMF14FTC6K80 | RES 6.8K OHM 1/4W 1% AXIAL | 1 | 0.1 | 0.10 |
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| Stackpole Electronics Inc | RNF14FTD470R | RES 470 OHM 1/4W 1% AXIAL | 6 | 0.1 | 0.60 |
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| Stackpole Electronics Inc | RNMF14FTC220R | RES 220 OHM 1/4W 1% AXIAL | 2 | 0.1 | 0.20 |
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| Stackpole Electronics Inc | RNMF14FTC2K20 | RES 2.2K OHM 1/4W 1% AXIAL | 3 | 0.1 | 0.30 |
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| Stackpole Electronics Inc | RNMF14FTC16K0 | RES 16K OHM 1/4W 1% AXIAL | 2 | 0.1 | 0.20 |
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| Stackpole Electronics Inc | RNMF14FTC30K0 | RES 30K OHM 1/4W 1% AXIAL | 2 | 0.1 | 0.20 |
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| Vishay BC Components | K471J15C0GF53L2 | CAP CER 470PF 50V C0G/NP0 RADIAL | 2 | 0.22 | 0.44 |
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| AVX Corporation | SR201A102JAR | CAP CER 1000PF 100V C0G/NP0 RAD | 2 | 0.29 | 0.58 |
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| Vishay BC Components | K103M15X7RF53L2 | CAP CER 10000PF 50V X7R RADIAL | 1 | 0.21 | 0.21 |
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| AVX Corporation | SR215C104KAA | CAP CER 0.1UF 50V X7R RADIAL | 2 | 0.2 | 0.40 |
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| TDK Corporation | FG28X7R1A225KRT06 | CAP CER 2.2UF 10V X7R RADIAL | 1 | 0.34 | 0.34 |
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| Broadcom Limited | HLMP-1401 | LED YELLOW DIFFUSED T-1 T/H | 1 | 0.49 | 0.49 |
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| Kingbright | WP710A10QBC/D | LED BLUE CLEAR T-1 T/H | 1 | 0.44 | 0.44 |
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| C&K | PTS645VL58-2 LFS | SWITCH TACTILE SPST-NO 0.05A 12V | 1 | 0.27 | 0.27 |
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| TDK Corporation | FG28X7R1E105KRT06 | CAP CER 1UF 25V X7R RADIAL | 2 | 0.32 | 0.64 |
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| TDK Corporation | FG24X7R1A106KRT06 | CAP CER 10UF 10V X7R RADIAL | 1 | 0.58 | 0.58 |
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| On Shore Technology Inc. | ED14DT | CONN IC DIP SOCKET 14POS TIN | 1 | 0.18 | 0.18 |
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| On Shore Technology Inc. | ED08DT | CONN IC DIP SOCKET 8POS TIN | 1 | 0.16 | 0.16 |
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The new items are the last 6 items on the list. There are two additional 470 Ohm resister (6 instead of 4) in the BOM.
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## Assembly
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# NucleoTNC PCB
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This directory contains the KiCAD files for the Nucleo TNC PCB. This is a PCB
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for the [NucleoTNC breadboard project](http://www.mobilinkd.com/2019/06/24/nucleotnc/).
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The design goal was to allow experimenters to take their breadboard project and give
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it a more permanent home on a real printed circuit board.
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|
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This PCB is designed to fit in the [enclosure](../Enclosure/README.md) that is also
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available in this repository.
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Ładowanie…
Reference in New Issue