2 layers73.7 × 92.1 mm
Erun2backup
immonel/e-runout
This project is used to measure electrical runout by comparing measurements from touching probe sensors and Eddy current probes simultaneously.
21 parts
2 layers121.3 × 120.9 mm
Erun2
immonel/e-runoutThis project is used to measure electrical runout by comparing measurements from touching probe sensors and Eddy current probes simultaneously.
- Size
- 121.3 × 120.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 38
- Nets
- 103
- Pads
- 237
- Tracks, vias
- 483, 32
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 12 Dec 2023
- Updated
- 12 Dec 2023
Overview
Erun2 is an open-source printed circuit board by immonel, from the immonel/e-runout repository on GitHub. It is a 2-layer board of 121.3 × 120.9 mm with 38 parts on 103 nets, routed with 483 tracks and 32 vias.
It is built around the MCP3301-CI/P and MC3486N. Its parts include 12 capacitors, 10 connectors, 7 ICs, 6 resistors and 1 switch. It belongs with the sensors and measurement boards and the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
2
MCP3301-CI/P
PDIP-8-40℃~+85℃ 100kHz 13 2LSB 4.5V~5.5V 50nA 78dB 85kHz~1.7MHz、1.7MHz Not supported SAR SPI Yes PDIP-8 Analog to Digital Converters (ADC) ROHSMicrochip TechnologyAnalog To Digital Converters (ADC)
MC3486N
DIP-160 0℃~+70℃ 4 4.75V~5.25V 85mA Receiver DIP-16 RS-485 / RS-422 ICs ROHSHGSEMIRS-485 / RS-422 ICs
README
README.mde-runout
This project is used to measure electrical runout by comparing measurements from touching probe sensors and Eddy current probes simultaneously.
Technologies and frameworks used in the project include Docker, React, Redux, Bootstrap, Node.js, Express, MongoDB and Socket.IO.
Project structure
client/
Frontend React app code
documentation/
Documentation files
hardware/
PCB schematics
mongodb/
MongoDB init scripts
server/
Backend Node.js app code
teensy/
Teensy microcontroller C++ code
Getting started
Production
- Fill out environment variables and rename the .env file:
$ mv .example.env .env- Start up the docker-compose stack:
$ docker-compose upNOTE: Please keep in mind that buiding the erunout Docker image on Raspberry Pi will take a LONG time (~1h).
The application creates a Wi-Fi access point with environment variables SSID and PASSPHRASE given in the .env file.
IP address for the application is 10.0.10.1 by default and can be accessed after connecting to the WLAN network.
TODO: WAN access is currently not working on the wireless access pointDevelopment
- Rename the .env file:
$ mv .env.example .env- Start up the development database:
$ docker-compose -f docker-compose.dev.yml up- Start up the development backend server (in the
serverfolder):
server $ npm install
server $ npm run dev- Start up the development frontend server (in
clientfolder):
client $ npm install
client $ npm start- Navigate to the development app at
localhost:3001. The backend server is accessible fromlocalhost:3000and the database admin interface fromlocalhost:8081.
Parts
38| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 0.1μF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C5, C6, C7, C8, C11, C12 |
| 5 | Conn_01x02_Female | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J4, J5, J6, J7, J8 |
| 4 | 1μF | Capacitor_SMD:C_0603_1608Metric | C2, C4, C9, C10 |
| 2 | 250Ω | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | Conn_01x03_Female | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J9, J10 |
| 2 | MC3486N | Package_SO:SOIC-16_4.55x10.3mm_P1.27mm | U2, U3 |
| 2 | TXB0108PWR | TXB0108PWR:SOP65P640X120-20N | U4, U5 |
| 1 | 1kΩ | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 2,4kΩ | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 20kΩ | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 9,1kΩ | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_132134-16_Vertical | J1 |
| 1 | HEIDENHAIN_MT25_TTL | Connector_Dsub:DSUB-15_Female_Horizontal_P2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm | J2 |
| 1 | MCP3301 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | SW_DP3T | SW_DP3T:SW_DP3T | SW1 |
| 1 | SolderJumper_3_Open | Jumper:SolderJumper-3_P1.3mm_Open_Pad1.0x1.5mm_NumberLabels | JP1 |
| 1 | TPS793475-EP | Package_TO_SOT_SMD:SOT-23-5 | U7 |
| 1 | TRIGGER_TTL | Connector_Dsub:DSUB-15_Female_Horizontal_P2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm | J3 |
| 1 | Teensy4.0 | teensy:Teensy40 | U6 |
The 37 most common of 38 parts.
Questions
How big is the Erun2 PCB?
It measures 121.3 × 120.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Erun2 use?
38 parts, built around the MCP3301-CI/P and MC3486N. 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 Erun2 KiCad files?
From the immonel/e-runout repository on GitHub, at the commit this page was made from: the board is hardware/erun/erun2.kicad_pcb and its schematic hardware/erun/erun2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Erun2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask immonel before reusing the design.
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