Blueprint

electric timetable

cool project as my current timetable is in pieces

Created by chris chris

Tier 4

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CAN CAN ⚡🚀 requested changes for electric timetable ago

Please make a more polished ReadME.md on your GitHub. Your ReadMe should include multiple photos of your project, photos of the full assembly such as PCB+Case, and have a good description of your project. Please read the submission guidelines before you resubmit. https://blueprint.hackclub.com/about/submission-guidelines.

chris chris submitted electric timetable for ship review ago

samliu samliu ⚡🚀 requested changes for electric timetable ago

We need to see an image of the 3D models with the PCB included. You gotta make sure that it fits. Please also make sure that you include the source files for the CAD. Fully check over the submission guidelines (https://blueprint.hackclub.com/about/submission-guidelines)!

chris chris submitted electric timetable for ship review ago

Iamalive Iamalive 🚀 requested changes for electric timetable ago

Thanks for explaining, however please attach images of that full.step in your readme, and also add those wishlist items to the cart to attach the discount and upload that to the cart screenshot!

chris chris submitted electric timetable for ship review ago

Iamalive Iamalive 🚀 requested changes for electric timetable ago

Interesting idea, hope you were able to work on your pcb and cad skills :) However, I'm going to have to ask you to add some more context in your journals(explain design choices you made, things you learned, etc!), and also include combined model of the entire project!(you can export your pcb as a cad file and make sure it fits in the shelling you have

chris chris submitted electric timetable for ship review ago

chris chris added to the journal ago

finished

I have finished the firmware, made the github, and i have also done the BOM. I have swapped to a nrf52840 as it has bluetooth capabilities.imageimage
This was quite time-consuming as i couldnt find parts for the buttons and the switches for any cheaper

Overall, in this project i have learned how to design cases and also how to join 2 parts together. it also improved my cad skills

chris chris added to the journal ago

made base

i made base for the timetable,image
image
it has a usb place for the tp4056 and also for the pogo connectors. it is also small enough to fit on my desk without looking out of place
This part helped me get better at 3d design as i dont have much practice with it.

chris chris added to the journal ago

made case

I have made the case and finished the pcb, I think it came out alright but i am quite bad at 3d modelling
image
it is 2 parts which snap together. I will print in petg so it is stronger, and its small enough to fit in my pocket.
image
I have also added mounting holes to the pcb.

chris chris added to the journal ago

routed pcb

I forgot about the journal.
I have chosen all my components and also routed the pcb,

I have chose the a xiao rp2040 as it has enough gpios for everything. it also has 3 buttons, a eink display, and a status led.
image
edit:
I have changed the xiao rp2040 to a xiao nrf52840 as it has built in bluetooth so i can see time on device. I chose an eink display so that the device looks better and can also have a longer battery time.

chris chris started electric timetable ago

1/29/2026 - routed pcb

I forgot about the journal.
I have chosen all my components and also routed the pcb,

I have chose the a xiao rp2040 as it has enough gpios for everything. it also has 3 buttons, a eink display, and a status led.
image
edit:
I have changed the xiao rp2040 to a xiao nrf52840 as it has built in bluetooth so i can see time on device. I chose an eink display so that the device looks better and can also have a longer battery time.

1/30/2026 - made case

I have made the case and finished the pcb, I think it came out alright but i am quite bad at 3d modelling
image
it is 2 parts which snap together. I will print in petg so it is stronger, and its small enough to fit in my pocket.
image
I have also added mounting holes to the pcb.

1/31/2026 4 PM - made base

i made base for the timetable,image
image
it has a usb place for the tp4056 and also for the pogo connectors. it is also small enough to fit on my desk without looking out of place
This part helped me get better at 3d design as i dont have much practice with it.

1/31/2026 5 PM - finished

I have finished the firmware, made the github, and i have also done the BOM. I have swapped to a nrf52840 as it has bluetooth capabilities.imageimage
This was quite time-consuming as i couldnt find parts for the buttons and the switches for any cheaper

Overall, in this project i have learned how to design cases and also how to join 2 parts together. it also improved my cad skills