Solar Powered Shield for the ST Nucleo Sensor Shields

My Spanish is lacking in so many ways so I’ll do this in English and Google translate some important stuff in Spanish to help the non-English speakers here.

The project is in 3 parts:

• Setting up Arduino for use with the Nucleo boards

• Solar-powered board

• Programming the Nucleo board for various sensors

When I got the Nucleo boards, I was confused and spent a better part of a day or two trying to figure out how to program it. So I went here. I do not want to plagiarize this gentleman’s work so I will just provide links for you to follow.

Part 1

https://www.instructables.com/id/Quick-Start-to-STM-Nucleo-on-Arduino-IDE/ on how to cross program with an Arduino IDE problem solved. Here is the Github repository for pin mapping and a simple sketch: https://github.com/sriksh9/Nucleo-PinMapping-for-Arduino

Part 2

My project uses a small board attached to solar panels (Mexico gets lots of sun) and it powers the Nucleo board. I will include the Fritizing files and a Gerber file for sending to PCBway.com. The cost is pretty low ($5.00 USD for 5) for the boards but shipping is a bit high ($25.00) then taxes on top when it gets here.

The Fritizing file is below, but this is a picture of the board and a brief bill of materials.

A real produced board from PCBWay.com

Bill of Materials

A couple of changes as the BOM did not include the rectifier but I will include it here. Also, make sure you get the proper voltage regulator. They are not all the same.

I will list it here and provide a link to the shopping list.

Total cost $16.65 including board.

Shopping list can be found here: http://www.digikey.com.mx/short/jmvww0

• 1 Electrolytic Capacitor; capacitance 47µF; voltage 50V; package 0405 [SMD, electrolytic]

• 1 Electrolytic Capacitor; capacitance 10µF; voltage 16V; package 0405 [SMD, electrolytic]

• 220Ω Resistor tolerance ±5%; resistance 220Ω; package 2010 [SMD]

• Voltage Regulator chip 78005; variant -to-220; voltage 5V; package to-220-alt1

• Generic double row male header - 4 pins; pin spacing 0.1in (2.54mm); pins 4; form; package THT; row double; hole size 1.0mm, 0.508mm 1 IC pin spacing 300mil; true;

• Rectifier -RECT BRIDGE GPP 400V 1A DF-M

• Screw terminal - 2 pins; pin spacing 0.2in (5.08mm); pins 2; package THT; hole size 1.25mm, 0.508mm

• 2 Pad layer copper 01 Red (633nm) LED; color Red (633nm); package 1206 [SMD]

• USB Connectors variant -a-smd; package usb-a-s-nosilk-female; target USB-A

Here is how you solder SMD parts and through hole parts.

The Finished Board

I ordered a heat sink from here to help with the heat generated. I also ordered a 3D printer for the case, which I will provide in this document in the future for use in a backpack.