Create schematic from breadboard prototype & dev boards (Part 1) // KiCad, Arduino, LoRa, GPS, E-ink
Breadboard prototypes can often include other dev boards and breakout boards. KiCad can be used to create a schematic symbol for each of the components. We can also reuse these schematic symbols across projects using git submodules. We will create a schematic based on these dev boards and use ERC to ensure the connections are all ok! In part, we will dig deeper into each of these dev boards to make the electrical schematic more detailed.
⏰ TIMESTAMPS
0:00 Intro
01:18 Schematic symbols overview
01:49 Create a schematic symbol of Adafruit RFM9x LoRa module
04:39 Reusability overview
05:03 KiCad with git submodules
06:03 Reuse created symbols in a new schematic
07:13 Integration overview
07:32 Add an image for additional info
08:15 Arrange according to the flow of power and logic from left to right
08:34 Connect power and ground pins
09:48 Connect the functional pins E.g. SPI, TX/RX, etc
12:09 Annotate symbols
12:31 Electrical Rules Check
14:06 Draw bounding lines for logical blocks
14:53 Outro: My thoughts on abstraction
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PRODUCTS MENTIONED
RobotDyn SAMD21 M0 Mini
Adafruit RFM95W LoRa Radio Transceiver Breakout
WaveShare 1.54in E-Ink
DEMO FILES
Project site
Schematic with dev boards only
KiCad files with the schematic
WATCH NEXT
Common datasheet sections to look at when getting started
Foundations of a good electrical schematic
Tips for creating schematic symbols
KiCad Library management with Git submodules
Using LoRa for P2P half-duplex long-range communication
Displaying on E-Ink screen with various micro-controllers
Arduino firmware on ATmega328p or SAMD21
Getting started with a GPS module // With Adafruit PA1010D and Arduino via I2C or Serial
LINKS SHOWN
RobotDyn SAMD21 M0-mini dev board:
Link:
pinout diagram
Schematic
RFM95W LoRa module:
Adafruit RFM69HCW and RFM9X LoRa Packet Radio Breakouts
Adafruit RFM9X Schematic
SEMTech LoRa SX1279 datasheet
HopeRF RFM95W LoRa module
HOPERF Low Power Long Range datasheet
GPS PA1010D Module:
Product link
CDTop PA1010D GPS module datasheet
Adafruit PA1010D Schematic
MediaTek GNSS Chipset MT3333 datasheet
Waveshare 1.54in E-paper module:
Product link:
Schematic
TOOLS USED
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