Design considerations for transferring a breadboard prototype to custom PCB // Arduino, mcu, sensors

#pcb #breadboard #prototype
I will be sharing some design considerations for transferring a breadboard prototype to a custom PCB. The breadboard prototype contains an Arduino dev board with a microcontroller connected to a few sensors. The custom PCB had a different power source and required the Arduino bootloader to be uploaded first before using the Arduino firmware.

⏰ TIMESTAMPS
0:00 Intro
00:52 Breadboard vs PCB
01:44 Microcontroller: package, variant, open schematics
03:49 Subsystems: power, MCU, sensors
05:32 Power: power sources, voltage regulator, power tree, max ratings
09:17 Bootloader: pins, protocol, programmer
11:10 Sensors: faulty design or faulty component
13:58 Outro: My thoughts on creating the first version

‣ Some links below are affiliate. I receive a small commission at no extra cost to you.

📻 PRODUCTS MENTIONED
RobotDyn SAMD21 M0 Mini https://s.click.aliexpress.com/e/_AZG8aU
Si7021 sensor module https://s.click.aliexpress.com/e/_Alew5x
TSOP4838 Infrared Receiver https://s.click.aliexpress.com/e/_ApST4d

🎩 DEMO FILES
Subsystem design https://hutscape.com/pine/design
Power Tree schematic https://hutscape.com/pine/power
Schematics https://hutscape.com/pine/hardware/do...
Circuit simulation with Falstad https://hutscape.com/pine/power#circu...

📺 WATCH NEXT
Arduino firmware on ATmega328p or SAMD21    • Arduino firmware on ATmega328p or SAMD21  
Common datasheet sections to look at when getting started    • Common datasheet sections to look at ...  
Foundations of a good electrical schematic    • Foundations of a good electrical sche...  
Uploading Arduino bootloader on a new micro-controller    • Uploading Arduino bootloader on a new...  
Circuit simulation with Falstad    • Circuit simulation with Falstad  

🔗 LINKS SHOWN
Adafruit Feather M0 Basic Proto - ATSAMD21 Cortex M0 https://www.adafruit.com/product/2772
RobotDyn SAMD21 M0-Mini https://robotdyn.com/samd21-m0-mini.html
Arduino Zero https://store.arduino.cc/usa/arduino-...
ATSAMD21G18 Document list https://www.microchip.com/wwwproducts...
Atmel SAM D21E / SAM D21G / SAM D21J Datasheet https://cdn.sparkfun.com/assets/6/3/d...
LCSC Microchip Tech ATSAMD21G18A-AU https://lcsc.com/product-detail/ATMEL...
draw.io to make flow charts https://app.diagrams.net/
switch between battery and USB power no microcontroller circuit https://electronics.stackexchange.com...
Schematics comments on Twitter   / 1176122249473978369  
Voltage regulator LD3985 datasheet https://docs-apac.rs-online.com/webdo...
IR Receiver TSOP4838 datasheet https://www.vishay.com/docs/82459/tso...
Temperature sensor Si7021 datasheet https://www.silabs.com/documents/publ...
Definition of power tree schematics from Intel https://www.intel.com/content/dam/www...
PN2222 NPN Transistor datasheet http://users.ece.utexas.edu/~valvano/...
BC817 NPN Transistor datasheet https://www.onsemi.com/pub/Collateral...

🔌 TOOLS USED
https://hutscape.com/tools