Newbie help needed with basic breadboard

micro:bit micro:bit extensions
1

Hi

Total newbie here :). I bought a microbit for my 9yo son and am now in the situation where I need to help him and know next to nothing about electronics :man_facepalming:

We’ve got this set (ELECFREAKS microbit Starter Kit for Kid Micro:bit Accessories Basic Coding Electronics Kit, STEM Educational DIY Experiment Kit, Electric Circuit Learning with Guidance Manual(Without Micro: bit) https://amzn.eu/d/67Hcm0E)

. …which lets us hook up the microbit to a breadboard, and have successfully managed to turn 2 leds on and off. This uses the P0 and P1 inputs off the interface between microbit and breadboard.

Now… we’re also using Tinkercad to try and simulate this and other projects before we build, however - as Tinkercad doesn’t have the interface to the breadboard that we’re using and instead links directly to it, we’re a little unsure how to access those P0 and P1 on the breadboard (we’re using the digital write pin in the code)

If we use the digital write pin P0 for example - what does that link to on the breadboard?

I hope that makes some sense :slight_smile:
Thanks for any help you can give!

Nick

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Sorry, this might be a bit more helpful… this is the real world led circuit we’ve built

We’re trying to recreate it within the Tinkercad simulator and have so far only managed to get the first LED to blink on and off and can’t get the second one to work :thinking:

IMG_1005
IMG_10051600×942 238 KB

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Hi @nickholl — It looks like your Tinkercad circuit doesn’t match the circuit from Elecfreaks (https://wiki.elecfreaks.com/en/microbit/circuit-design/microbit-starter-kit/starter_kit_case_01).

The 0 and 1 on the breadboard connector are the P0 and P1 on the micro:bit. The G on the breadboard connector is the micro:bit’s GND — Your circuit above doesn’t connect the circuits back to the ground/G correctly.

Here’s a Tinkercad Example that does: https://www.tinkercad.com/things/5kDyt068xPW-elecfreaks-lesson-01 .

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oh! dont know how we missed that interface addon :man_facepalming:

thanks for your help!