2 layers75.5 × 22.9 mm
24vModbusInterface
timshac/RS-485-FeatherWing
RS-485 FeatherWing for Feather style microcontrollers. Instant Mobile App possible with Particle.io ecosystem
17 parts2
2 layers75.5 × 72.7 mm
RS-485 FeatherWing for Feather style microcontrollers. Instant Mobile App possible with Particle.io ecosystem
- Size
- 75.5 × 72.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 96
- Pads
- 241
- Tracks, vias
- 246, 15
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 6 Mar 2021
- Updated
- 23 Apr 2021
Overview
Panel is an open-source printed circuit board by timshac, from the timshac/RS-485-FeatherWing repository on GitHub. It is a 2-layer board of 75.5 × 72.7 mm with 52 parts on 96 nets, routed with 246 tracks and 15 vias.
It is built around the SP3485EEN. Its parts include 15 connectors, 9 ICs, 6 capacitors, 6 resistors and 6 diodes. It belongs with the microcontroller boards boards of this library.
Main components
1README
README.mdRS-485-FeatherWing
RS-485 FeatherWing
Can be used with any Feather style microcontroller
Firmware and simple mobile app available for Particle Argon or Boron microcontroller.
Connect your modbus client unit to your phone using the Particle.io mobile app.
Control your chiller or process heat from your phone.
Use Scenario
Building the Hardware
Clone this repository. Use Kicad to edit the circuit board and generate gerbers, or send the existing Gerbers to a fab. I use Seeed Studio. Use the BOM to order parts.
Connect hardware
- Wire the RS-485 Featherwing to your modbus RTU unit. Connect D1 <-> A and D2 <-> B Power the RS-485 Featherwing with 5.2-36v DC (200mA)
- Insert the Boron or Argon into the RS-485 Featherwing
- Connnect particle Boron (Cellular) or Argon (WiFi) to the Particle cloud using the Particle mobile app: Android, iOS
Demo Firmware available
Clone this firmware Github Novus-N322-modbus-RTU-driver Adapt to your modbus RTU device
Example Particle.io Mobile App
For the demo firmware
Let's talk - Office Hours
Are you interested in this system of tools we are building?
I would love to talk and listen to you!
Please book a free 20 minute session - Hudson Sonoma Office Hours - if you would like to talk about any of the following:
- Understanding what this is and why it might be useful for you
- Customizing the firmware or mobile app
- Feedback having used (or tried to use) this product
License
- Hardware: CERN-OHL-P
This hardware is intended for further engineering and/or development, it is not an end user product. This development product is supplied AS IS, without any warranties, with all faults, at the buyer’s and further users’ sole risk. The user assumes all responsibility and liability for proper and safe operation.
The user understands and agrees that this is not designed for use in safety-critical applications where a failure of the product would reasonably be expected to cause severe personal injury or death.
Any use of this firmware and/or hardware is solely at the customer’s risk, and that customer is solely responsible for compliance with all legal and regulatory requirements in connection with such use.
HARDWARE AND ANY RELATED SOFTWARE IS PROVIDED ‘AS IS’ WITH NO ADDITIONAL WARRANTY.
THERE IS NO OTHER WARRANTY, EXPRESS OR IMPLIED, SUCH AS WARRANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE OR NON INFRINGEMENT.
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Conn_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal | J5, J5, J5, J6, J6, J6 |
| 6 | Conn_01x02 | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_PT-3.5mm_2pol | J1, J1, J1, J2, J2, J2 |
| 3 | 0.1uF | Capacitors_SMD:C_0603_HandSoldering | C1, C1, C1 |
| 3 | 10uF | Capacitors_SMD:C_0805_HandSoldering | C2, C2, C2 |
| 3 | 220 | Resistors_SMD:R_0603_HandSoldering | R2, R2, R2 |
| 3 | 330 | Resistors_SMD:R_0603_HandSoldering | R1, R1, R1 |
| 3 | ARGON | winely_kicad:FeatherWing | U1, U1, U1 |
| 3 | Conn_01x03 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-3-3.5-H_1x03_P3.50mm_Horizontal | J7, J7, J7 |
| 3 | D_Schottky | Diodes_SMD:D_SOD-323_HandSoldering | D1, D1, D1 |
| 3 | LED | LEDs:LED_0603_HandSoldering | D2, D2, D2 |
| 3 | LOGO | logo:HudsonSonoma_Logo | G***, G***, G*** |
| 3 | Pololu_Reg16a | winely_kicad:Pololu_reg16a | U3, U3, U3 |
| 3 | SP3485 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U2, U2, U2 |
| 3 | VAL** | winely_kicad:PCB_FeatherWing_4hole | PCB**, PCB**, PCB** |
The 48 most common of 52 parts.
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Questions
How big is the Panel PCB?
It measures 75.5 × 72.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Panel use?
52 parts, built around the SP3485EEN. 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 Panel KiCad files?
From the timshac/RS-485-FeatherWing repository on GitHub, at the commit this page was made from: the board is kicad/panel.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Panel design in my own project?
Its repository states no licence, so its author keeps all rights: ask timshac before reusing the design.