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UART Module for ECC

Interchangeable interfaces using the Embedded Communications Connector

UART Module for ECC
Very often a project will demand an external interface such as RS-232, USB or Bluetooth, and using a small ready-made module can reduce development time and gain flexibility. The use of a standard header to carry serial data to and from the module means that they can be interchangeable: in this article we propose a connector specification and present our first module, designed for robust RS-485 communication. More modules will be presented in the future.
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Gerber file

CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor Members can exclusively download these files for free as part of their Membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service. Elektor recommends its business partner Eurocircuits as the company of choice for its own prototypes and volume production in selected cases.

Components
Download the BOM list
The BOM (Bill of Materials) is the technically exhaustive listing of parts and other hardware items used to produce the working and tested prototype of any Elektor Labs project. The BOM file contains deeper information than the Component List published for the same project in Elektor Magazine. If required the BOM gets updated directly by our lab engineers. As a reader, you can download the list here.
Want to learn more about our BOM list? Read the BOM list article for extra information.
Component List
Resistors (SMD 0805, .125W)
R1,R2 = 10kOhm 5%
R3 = 120Ohm 5%
R4 = 1.5kOhm 5 %
Capacitors (SMD 0805)
C1 = 1µF 10V 10%, X7R
Semiconductors
D1 = LED, green, 3mm, low current, through hole
IC1 = LT1785CS8#PBF (SO-8)
Miscellaneous
K1 = 10-pin (2x5) pinheader, 0.1’’ pitch
K2 = 3-way PCB mount screw terminal block, 0.2’’ pitch
JP1 = 2-pin pinheader with jumper, 0.1’’ pitch
PCB # 130155-1 v1.2
or
PCB, ready assembled and tested, Elektor Store # 130155-91

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